Fitech Timing Curve

This is how the system receives RPM signal. Otherwise go to best vacuum at idle then back 1-2"/hg. The Go EFI Dual Quad Power Adder System Kit (Matte Black, 1200 HP) is for the guys who have 671 and 871 Roots Superchargers or make up to 1200 HP naturally aspirated on their Dual Quad setup. Today I started the car and let it run in front of my house. So under the same conditions as above, the timing needs to be increased to: 55°-17° = 38° BTDC! Timing advance is low at low engine speeds, because the piston is moving slowly, and the fuel has time to burn near TDC. Valve Train Geometry. Boost A/F targets are simple to adjust while timing curves can be retarded according to boost easily through your touch screen controller. The 6LS controller is programmable by means of simple plug-in modules, an optional hand-held programmer, a laptop computer; giving the user a variety of ways to adjust RPM and timing. Nothing wrong with them, but the beauty of EFI, at least for me, is the adjustability especially when engines are modded (say change the ignition timing curve). Generally speaking one jet size represents a 4. The problem going too much in one direction mechanically then trying to adjust it electronically would be the arcing issue where you could ignite the wrong cylinder or you are just too far away. Comes ready to install with the Muscle Car oil pan, Complete Fuel Injected Unit ECM and Harness. achieve the correct timing curve. Car is in drive with helper foot on brake and idle is set to factory test procedure (about 600 rpm for a 1970), and then set idle to factory spec. But I’m reading some folks owning those old vehicles now, they are reverting to the pre-emissions mid-1960’s configuration. Also total timing of 38* may be high for some engines especially if you are going lean at any point with your carb setup. This system makes tuning your Supercharged engine easy! Bolt on 2 of these tough looking throttle bodies and drive your car as the system dials itself into the perfect calibration for all of your driving and. The timing curve is whatever their base tune was. The OE 12A front disc brakes are pretty good on the '80+ cars. Technical Bulletins. p engine as setting at idle you don't know what. If you don't have a timing light, I'd suggest buying one for sure. This system makes tuning your Supercharged engine easy! Bolt on 2 of these tough looking throttle bodies and drive your car as the system dials itself into the perfect calibration for all of your driving and. Handheld Controller Feature Definitions – FiTech Fuel Injection read thru the Spark Map page and hopefully that will help. But I’m reading some folks owning those old vehicles now, they are reverting to the pre-emissions mid-1960’s configuration. You can see that Boost is consistent through 3 runs. Fully adjustable and constructed of steel, the 3’ long x 1-1/4” wide face is Perfect for replicating body panels, as a template for plasma cutting or even use on wood projects. Hot rods and street rods have always been the core of the West Coast Nationals, which makes it a perfect home for the America’s Most Beautiful Street Rod. Because of this, I was able to keep the 2 step limiter on the MSD box functional. Ignition timing is easily the single most important tuning adjustment on an internal combustion engine and yet the concept of ignition curves continues to be elusive for many enthusiasts. Just because you have run a big-block Chevy before does not mean all big-block Chevys like 32 degrees of timing. Do not worry about initial timing, as it will be determined by the total timing. Boost A/F targets are simple to adjust while timing curves can be retarded according to boost easily through your touch screen controller. The Ul-timate LS system will allow for both EV1, EV6, and truck injectors. For example, 100 kW wheel power, can be obtained in 2 nd gear, 4 th gear and 5 th gear. Unlimited Vehicles ECU reprogramming Latest Version MMCFlash Software to reprogram ecu. Once the hardware is in place and ready setting up the timing curve / ignition map is easy. FiTech makes feeding your Vette with fuel injection easy and affordable. My Build: 6. Ignition Timing and The Advance Curve. This is because of the ability to control the air/fuel ratio at varying load and RPM. Compatible with power adder technologies – Wet flow NOx, superchargers, and turbochargers. The example in their manual shows a straight-line extrapolation in between. This is a pretty fresh restoration of ours. A larger decay value causes the accel “pump” amount to be ended sooner, and a smaller decay value allows the fuel to extend a little longer. Total timing refers to the reading at 4500 rpm with the vac. Have it all come back in in the low 2000's (your torque converter stall should be considered. , fire the spark plug later in the compression stroke, closer to TDC) for a boosted engine vs. The rate at which the springs let the advance weights move determines the timing curve. With the engine together, we placed the Holley Sniper 4500 on the intake and wired the ignition and coil according to the instructions. As usual with projects things cause delays. Spoke to FiTech tech last Friday and got the IAC set right. I run 44* TOTAL timing (in by 2800 or so), 33* INITIAL, with a custom made 11* mechanical advance limiting bushing. I'm currently rebuilding 396 and don't plan anything too wild, just something to cruise around in. #ad Powered up here is the home screen of the FAST controller. (mike)>> nice flat curve, no bad spots in it. Enjoy! Ken. FiTech's Ul-timate LS kit comes with a knock sensor control and is custom cam friendly. Fitech ultimate ls fault codes. Duplicate shapes, curves and compound contours with great accuracy using the Eastwood Curve Template. A fuel pump block-off plate will be. so start tuning away boys. Texas Speed & Performance is your one-stop shop for all LS and Gen 5 LT1 & LT4 performance parts and engines! We are among the largest LS and Gen 5 LT1/LT4-specific shops in the country, and we machine and assemble all of our engines, camshafts, and Precision Race Components cylinder heads in house!. The timing curve is whatever their base tune was. If measured at discrete increments of rpm, the timing figures generated by the weights and springs as they move during engine acceleration define a curve when the valves are plotted on a graph. Compatible with power adder technologies – Wet flow NOx, superchargers, and turbochargers. This can cost power, as the pressure is starting to build as the piston is still moving up. I'm setting the spark map in my FiTech system to replicate a mechanical advance curve and letting the vacuum advance do what it always has, account for the load changes. Contrary to fuel injection tuning, most carbureted setups are optimized on the street and adjusted and verified on the chassis dyno. Start out with your total timing the same as on gas then adjust for best mph. 0 degrees you set this setting to 12. FiTech Go EFI self-learning fuel injection is out-of-the-box compatible with your 300-625 horsepower dual quad or tunnel ram motor. This is to make sure that your advance curve occurs as we entered it into our ignition table. So lets say you set your timing @ 35*, pull 20* for start and idle. Edelbrock, Performer RPM LS1/6 (Gen III) Intake, Manifold/Timing Module Designed to fit all Gen III engines including LS1/6, LM7, LR4 and LQ4. The reason Vortec heads require less timing advance is because of their greater efficiency. Limited timing/fuel control. FiTech Ultimate LS Instructions. You can bolt on the '80 caliper and hanger, and the brake lines will even match, as the thread pitch is the same. There is no doubt that given more learning time, the FiTech would outperform the carb and provide a flatter torque curve ( divability ). Hello, I have a 408W and I am looking on some advice to find the best advance curve/timing for it. ” With a revolutionary new self tuning option, this is the one EFI system with the easy-to-use features and completely configurable capabilities that accurately balance fuel and spark, allowing you to fine tune and precisely control like never before. I don't set mine that far out because the controller in my FiTech can both advance and retard timing. This FiTech EFI is perfect for an everyday driver, a weekend cruiser, or bracket racer. Using FiTech s proprietary self-tuning technology, you can get your car on the road or track faster than ever, using just your gas pedal & the included handheld controller. This calculator is based on modeling your engine's wide-open-throttle VE with a quadratic equation of the form VE = A*rpm 2 + B*rpm + C where: A, B, & C are constants. Fuel pressure regulators uses a diaphragm and spring combination within its housing; with a vacuum source on the top side of the diaphragm. @3000 rpm and 128 ft-lbs. Just because you have run a big-block Chevy before does not mean all big-block Chevys like 32 degrees of timing. Contact us. The 1996–1997 LT1 timing cover has limited clearance near the crankshaft seal, so one reluctor design allows for the LT1 timing cover and the GM single-row timing set. You can tell there is a vacuum leak if the timing reading fluctuates during reading/setting, should be steady. Designed for 4150 and 4500 style flanges (When using 4500 style flange, P/N 300-4145-1AL adapter is required). This datalog shows 3 runs averaged. Dyno Results: Camshaft Part # 12-246-3: Designation: XE274H-10: Duration @ 0. Fitech backfire on deceleration. FiTech EFI w/Tanks Inc. 5" rear disc brakes; 24" Griffin Radiator w/twin 11" 2800 CFM fans; Classic Auto Air AC; Truck-Lite 7" LED headlights. This is not a "7 or 8 " sensor system, the FiTech has a wideband O2 sensor, can control the timing from a ready to run distributor, temp sensor and has a connection to manifold vaccum. Uploaded files: You need to login to have access to uploads. ( I said cause and not problem, because the popping is not at all damaging to the bike). The FiTech is the same as the Sniper. This is my first post here. MSD designed LS controllers with matching factory connectors for a direct installation, and few connections are needed: cam, crank, and MAP sensors and coils. Hopefully this will help those who have the FItech get the IAC and some timing settings set right, again all engines are different so what mine likes for tim. So besides lowering the compression, a lot of weird control configurations got put in place to squeak by. The Gen 4 LY6 differed from the previous Gen 3 LQ4 and LQ9 versions by way of the use of LS3-style, rectangular-port (823) heads and matching intake. GMC Motorhomes International was founded in 1982 by Ralph Luby >> GMC Motorhomes International 1402 So Cage Blvd, Unit 273 Pharr, TX 78577 | 612. E-Stopp Gatling. I would have opted for port injection but my budget just doesn't allow this. This system makes tuning your Supercharged engine easy! Bolt on 2 of these tough looking throttle bodies and drive your car as the system dials itself into the perfect calibration for all of your driving and. This is not a "7 or 8 " sensor system, the FiTech has a wideband O2 sensor, can control the timing from a ready to run distributor, temp sensor and has a connection to manifold vaccum. If you can tune the curve, cutting the whole timing curve by 50% is a good start for smog. If it had been our choice, we would have used the Sniper distributor for this application because it would allow us the option to build our own ignition timing curve. 0 degrees you set this setting to 12. Fitech backfire on deceleration. Below is the upper spark timing table of a VX SS. Proceed carefully and document the timing change by measurement, either by degrees of crank rotation or by millimeters before top dead center. There is no doubt that given more learning time, the FiTech would outperform the carb and provide a flatter torque curve ( divability ). If your curve starts right at idle, the timing would wander and so would your idle. The reason Vortec heads require less timing advance is because of their greater efficiency. So under the same conditions as above, the timing needs to be increased to: 55°-17° = 38° BTDC! Timing advance is low at low engine speeds, because the piston is moving slowly, and the fuel has time to burn near TDC. If your late-model MPFI motor has an aftermarket intake like from F. Next, cycle the ignition key OFF and then back ON. Don't you love the way you can set timing curves with the programmable ignition. Don't get me wrong, the factory (read: old) HEI distributor in my bone-stock 350ci engine still functioned "well," but it was beginning to show. balanced on our cwt balancer to below 2 grams. By the ’50s mechanical fuel injection was widely used on all forms of American […]. Features: 74 Stroke x 94 Bore, Los Panchito heads 9:1 compression. The timing, the people, and the location are all key elements to this event, but there’s a bit of Goodguys magic that gives it an extra boost of feeling that’s difficult to define. If it had been our choice, we would have used the Sniper distributor for this application because it would allow us the option to build our own ignition timing curve. Below is the upper spark timing table of a VX SS. This is a pretty fresh restoration of ours. So besides lowering the compression, a lot of weird control configurations got put in place to squeak by. I am using an HEI style distributor locked out, you have to lock out the timing otherwise the inputs for the fitech will stack on top of the HEI timing curve. I am no completely sold into the idea of running EFI. Second, the ignition timing curve can be tailored precisely to each individual cylinder, so the engine can, and this is important, run more compression because it is the first cylinder to detonate that limits the use of a single, mean, best-torque timing. Both controllers have timing curve mapping using MSD's Pro-Data+ software and programmable 2-step rev limiter, vacuum advance curve, and step retard. 03-31-2010, 08:07 PM. what is tricky about choosing a junkyard motor is they blended years and items, hardware and technology over year make and model. If you are in need of a serpentine pulley kit. After retuning my car with the new pulley settup he was ready to prove his point. Intake air temperature and fuel octane have significant effects on detonation. Duplicate shapes, curves and compound contours with great accuracy using the Eastwood Curve Template. safeconindia. Map a complete timing curve for every gear. The 355 with the brodix heads and the cam and the port matched intake manifold came out right. Next thing I am going to do is start logging results to help me tune the timing curve. Buy Curve Blades online - Supercheap Auto. Included are several timing curves that are each tailored for different camshafts, final drive gearing, and vehicle weight. Engine Protection Feature. What are the default values for a LS motor ? Attached are pictures. Timing control provided by ECU. what is tricky about choosing a junkyard motor is they blended years and items, hardware and technology over year make and model. When the MAP senses an increase in manifold vacuum at high rpm, the ECM electronically advances the spark. The limp home mode helps protect your transmission if damage is detected. I run 44* TOTAL timing (in by 2800 or so), 33* INITIAL, with a custom made 11* mechanical advance limiting bushing. Hot rods and street rods have always been the core of the West Coast Nationals, which makes it a perfect home for the America’s Most Beautiful Street Rod. To find out more including how to change your settings, please see our. '81+ cars have a differnt thread pitch than the earlier cars. On the more expensive units you can lock out the dizzy. I don't set mine that far out because the controller in my FiTech can both advance and retard timing. Boost A/F targets are simple to adjust while timing curves can be retarded according to boost through the touch screen. Uploaded files: You need to login to have access to uploads. Then dajust timing at 3000 rpm or where max advance is in rpm range. I left the stocker on the car and I returned the. You don't want it popping through the intake. s @4700 rpm. What are the default values for a LS motor ? Attached are pictures. The Ul-timate LS system will allow for both EV1, EV6, and truck injectors. Shine the timing light at the harmonic balancer timing mark on the driver's side of the engine. advance disconnected. Setting the timing on a 95° day will result in too mild of a curve, just as setting it on a 50° fall day will be too aggressive for summer driving. So lets say you set your timing @ 35*, pull 20* for start and idle. This return line is located downstream of all the injectors. I set my initial timing between zero and 600 rpm to 20 degrees retard in the software (to be at 16 degrees). Boost air/fuel targets are simple to adjust while timing curves can be retarded according to boost. Spoke to FiTech tech last Friday and got the IAC set right. 5% change in a Holley type main jet. p engine as setting at idle you don't know what. The fact I can eliminate several components offsets all costs and I could tune infinitely for timing and AFR , which is a big deal in turbo applications over a carb. The beauty of this is that you can theoretically use that table to nail down an absolutely amazing timing curve that could never be achieved with weights and vacuum. Contrary to fuel injection tuning, most carbureted setups are optimized on the street and adjusted and verified on the chassis dyno. Once the ignition timing is fully synchronized, the Timing Table can be tuned for each application. The 6LS controller is programmable by means of simple plug-in modules, an optional hand-held programmer, a laptop computer; giving the user a variety of ways to adjust RPM and timing. No problems. Hi Jeff, I know this is an old article, but I’ve been playing around with using vacuum advance along with ECU timing control. The HP and Torque curve look very similar with the main difference being the Test8 curve with the smaller TBI starts to fall off a bit earlier than the larger Holley did, causing that 2. All of the fitech. It is messy and has low timing advance at low rpm with a mountain chopped out of it at low rpm. All of the fitech values are based on this number, it will add or subtract whatever it needs to reach your preset goals for timing and can display them live as well as. Next thing I am going to do is start logging results to help me tune the timing curve. - RE:TIMING CONTROL. I am now using my MSD 6AL to control timing and plan on trying to get the Fitech timing working again or switch over to a MSD 6530 digital 6AL that I already have. Quality OEM product right there. (34* for Mopars and 35* for Fords). Fitech ultimate ls fault codes. All of the fitech values are based on this number, it will add or subtract whatever it needs to reach your preset goals for timing and can display them live as well as. The typical mechanical timing curve generally starts 200-500 rpm higher than idle, mostly to provide a stable idle. Our numerous GM, Ford, and Mopar Engines offer any custom builder, hot rodder, or kit car builder an engine that has been fully Dyno tested, passed vigorous inspections, and is ready to power up your project. Spoke to FiTech tech last Friday and got the IAC set right. I am using an HEI style distributor locked out, you have to lock out the timing otherwise the inputs for the fitech will stack on top of the HEI timing curve. You need to use an adjustable rotor to make sure that the contact tip is close to the distributor cap post throughout the timing curve if you're going to lock out the dizzy and use computer timing. On the Ignitor ® page, we talked about a dyno test performed on a mild 350 Chev with moderate engine modifications and a Mallory Twin-Point Distributor that recorded a benchmark dyno run of 195hp at the wheels (ATW). Ease of tuning alone makes it worth it. Then dajust timing at 3000 rpm or where max advance is in rpm range. Hyper Spark Distributors are the perfect distributor for use with EFI systems when controlling timing from the EFI controller. I am running the FiTech and a Procharger on mine. #ad FAST really has the software setup right. Sign up is fast and easy. I do NOT run FiTech controlled timing curve. If measured at discrete increments of rpm, the timing figures generated by the weights and springs as they move during engine acceleration define a curve when the valves are plotted on a graph. So under the same conditions as above, the timing needs to be increased to: 55°-17° = 38° BTDC! Timing advance is low at low engine speeds, because the piston is moving slowly, and the fuel has time to burn near TDC. I'm currently rebuilding 396 and don't plan anything too wild, just something to cruise around in. Often timing set ups can be troublesome if other problems. There is no doubt that given more learning time, the FiTech would outperform the carb and provide a flatter torque curve ( divability ). p engine as setting at idle you don't know what. This engine makes an incredibly flat torque curve, 128 ft-lbs. Ignition Timing and The Advance Curve Before checking the air/fuel mixture, the ignition timing and advance curve must first be correct. The problem going too much in one direction mechanically then trying to adjust it electronically would be the arcing issue where you could ignite the wrong cylinder or you are just too far away. The popping noise, might be a timing issue? whoaskew. From this I know that from 4200 - 5000 rpm I need to adjust my fuel, or timing to get rid of the knock. The ignition timing set by the factory requires the use of a high-quality lead free regular gasoline with an octane specification of (R+M/2). - comp aluminum roller rockers 1. 7L LT1-LT4 engines. We do not recommend running the vacuum advance with this engine. that uses existing factory coil packs and sub harnesses. Forget the crummy wedge style brakes on the '79 cars. Set For Timing Better control of your ignition’s timing is another benefit of EFI. Looking for how to increase horsepower in your car or truck? Our team of experts put together the 7 smartest strategies for unleashing the power under your hood. AutoMeter AFR dummy gauge ($300). Buy Curve Blades online - Supercheap Auto. Pertronix Electronic Ignition Systems and Coils. What this was telling me was cumbustion was bad. Choosing a particular type of camshaft for an engine build is an important decision that has to be made before any other parts are ordered or machined. The example in their manual shows a straight-line extrapolation in between. All of the fitech. In fact, the first of the mechanical variety appeared on French aircraft in the early 1900s, but most of us are more familiar with the early systems pioneered for race cars by Ed Winfield and Stu Hilborn. If base timing isn't measured, almost any car can pass with heavily retarded timing. Essentially, the “Idle Ignition Timing” is the timing you get with a timing light at idle. 5% change in a Holley type main jet. C3 Corvette 1968-1974 Big Block Timing Chain/Gear Set. As usual with projects things cause delays. Cleetus McFarland "Bald Eagle" Cathedral Stroker Twin Turbo Cam. This build features the Cast Iron LQ9 6 bolt block. Choosing a particular type of camshaft for an engine build is an important decision that has to be made before any other parts are ordered or machined. balanced on our cwt balancer to below 2 grams. in/public/wi90/8tdjjmyzdn. That's a good place to start getting timing dialed in. ) • Click Save. FiTech the one that controls timing,2 cooling fans and bumps idle when a/c is turned on. Crusader fuel injected engines are calibrated to operate on 87 octane fuel and maximum performance is obtained when using this fuel. You can see that Boost is consistent through 3 runs. #ad FAST really has the software setup right. Later, we add some timing in the idle and drivability areas to improve the burn of the mixture, improve fuel economy, lower exhaust temperatures, etc. Read the number on the timing plate adjacent to the timing mark on the balancer. Apr 27, · thoughts on FITECH EFI The distributor wires connect into the crank sensor wires shown on the wiring diagram. I do it by setting total timing. When the engine would be run to operating temp around 190-200, sometimes I would get kickback when I tried to re-start it. Boost A/F targets are simple to adjust while timing curves can be retarded according to boost through the touch screen. We also recommend getting our Extended Radius Arm Mounting Brackets for a hassle-free installation. Disconnect the vacuum advance hose on the distributor and plug the hose with a screw. Carburetor tuning requires the vehicle to be dropped off. FiTech's Ul-timate LS kit comes with a knock sensor control and is custom cam friendly. This is how the system receives RPM signal. This build features the Cast Iron LQ9 6 bolt block. These constants are derived from the: peak [email protected],. The chart allows you to map out an advance curve based on manifold vacuum (much like the vacuum advance on a mechanical distributor). All that’s changed is the point at which the exhaust opens. What are the default values for a LS motor ? Attached are pictures. Wiring the system is made easy with a custom wiring harness that uses existing factory coil packs and sub harness. On the Ignitor ® page, we talked about a dyno test performed on a mild 350 Chev with moderate engine modifications and a Mallory Twin-Point Distributor that recorded a benchmark dyno run of 195hp at the wheels (ATW). When the controller and the damper are reading the same timing at idle, you lock the distributor down and the computer does the rest. 03-31-2010, 08:07 PM. FiTech 500HP LS1/LS2/LS6 92mm Ultimate EFI Kit w/ Transmission Control 70002. Hardware, sensor, internals, and other blended technology over years of gen3 to gen4 engines. Of course, that often requires the services of an expert tuner with a dyno, but it is generally well worth the cost and effort. Proceed carefully and document the timing change by measurement, either by degrees of crank rotation or by millimeters before top dead center. The reason Vortec heads require less timing advance is because of their greater efficiency. I need to reprogram the advance curve in my electronic ignition and since I installed Windows 10 on my computer last week I'm not able to connect to the ignition. Better control of your ignition's timing is another benefit of EFI. Give us a call at our toll-free Factory Tech Line for any inquiries. (34* for Mopars and 35* for Fords). I run 44* TOTAL timing (in by 2800 or so), 33* INITIAL, with a custom made 11* mechanical advance limiting bushing. In addition to the innovative, square design, the Third Generation C10 featured a host of natural curves and lines, spanning from the hood to the beltline, and eventually, the rear tailgate. 0 degrees you set this setting to 12. #ad FAST really has the software setup right. s @4700 rpm. Handheld Controller Feature Definitions – FiTech Fuel Injection read thru the Spark Map page and hopefully that will help. The car came out awesome. The closer to the lower number (30 degrees) the total timing is, the safer your engine will be. From sea level to 7,200 feet over the Sierra Mountains. He then made another pull on the dyno and my car made 12 more rwhp than it did with the MSD. I just drove from San Francisco to Reno, NV and back. You can tell there is a vacuum leak if the timing reading fluctuates during reading/setting, should be steady. One of the great things about E85 is not only its higher octane rating, but also its ability to suppress detonation. that means. I have the timing advancing at a lower rpm than the idle set point on the FiTech. I gave it a little gas while. - scat competition series rods with 7/16 arp 8740 cap screws. These LED's help with. I have read on different forums and this one included that the aftermarket distributors are not that great so I am trying to source a original ford distributor. The following specifications are general guidelines offered to aide in building an engine for street use. FiTech Go EFI self-learning fuel injection is out-of-the-box compatible with your 300-625 horsepower dual quad or tunnel ram motor. 90 gears in the car, my highway cruise rpm is right at 3000, and thinking 54* might be a tad. With EFI, you are able to use a more aggressive timing curve than you may be able to with a carburetor, because of the ability to control the air/fuel ratio at varying load and RPM. New option B: FiTech Go EFI 8, PowerAdder ($1500). This is more than just increasing the main jets (in a carburetor) by 30%. IDLE TUNING Foreword by Rinkrat456: This article is literally copied and pasted from Krambo's Silverado SS page. - comp aluminum roller rockers 1. I'm not real familiar with Edelbrock's systems as I try to avoid systems that require chips to be programmed for them. Once back ON, go to ADVANCED SETUP, select IGNITION TIMING, and then select LOCK TIMING. So I'm curious if I should run timing control or not. Complete Self Tuning Induction Systems for LS engines designed for the do-it-yourself Hot Rodder to the professional EFI tuner! This system is ready to go with everything needed to complete the induction system of your LS engine. safeconindia. You can bolt on the '80 caliper and hanger, and the brake lines will even match, as the thread pitch is the same. Choosing a cam requires answering some basic questions, the most important of which is the engine application itself. [email protected] Fitech ultimate ls fault codes. Included are several timing curves that are each tailored for different camshafts, final drive gearing, and vehicle weight. Below is the upper spark timing table of a VX SS. Our folks have several options from basic to completely trick. Then set the run curve like you described. balanced on our cwt balancer to below 2 grams. the correct curve on a distributor machine. As example, the BSFC contour plot above contains also the maximum engine torque curve and the constant engine power curves. C3 Corvettes 1968-1982 350 MSD Digital E-Curve Distributor. All of the fitech. If base timing isn't measured, almost any car can pass with heavily retarded timing. When the controller and the damper are reading the same timing at idle, you lock the distributor down and the computer does the rest. This engine makes an incredibly flat torque curve, 128 ft-lbs. Cooler air/higher octane fuel let you set a more agressive timing curve. Also total timing of 38* may be high for some engines especially if you are going lean at any point with your carb setup. My Build: 6. 90 gears in the car, my highway cruise rpm is right at 3000, and thinking 54* might be a tad. s @4700 rpm. Plan is to put her in gear, watch the map gauge on the fitech, and adjust my timing until I maximize the map sensor. a comparable normally aspirated engine, and, to further retard timing in a way that is proportional to boost (not necessarily linearly). FiTech's Ul-timate LS kit comes with a knock sensor control and is custom cam friendly. This system makes tuning your Supercharged engine easy! Bolt on 2 of these tough looking throttle bodies and drive your car as the system dials itself into the perfect calibration for all of your driving and. I was told specifically by FiTech's owner, Ken Farrell, that if your timing/distributor/advance curve was working good, then more often than not, you'll have lackluster results in trying to be smarter than your distributor is, and "making" a new curve. Proceed carefully and document the timing change by measurement, either by degrees of crank rotation or by millimeters before top dead center. By the ’50s mechanical fuel injection was widely used on all forms of American […]. If your actual timing in Toothed Wheel is not the same as your commanded timing, there is a problem with your trigger wheel settings, most likely with your #1 tooth angle. At higher speeds, the timing must be advance. Boost A/F targets are simple to adjust while timing curves can be retarded according to boost easily through your touch screen controller. long tubes. 7L and the 7. The OE 12A front disc brakes are pretty good on the '80+ cars. The original mechanical fuel pump mounted on the timing cover, as well as all of the old fuel hard lines, were removed from the Mustang to clean things up. Anyway, that dead-band from idle timing to the beginning of the mechanical timing curve is critical to the engine's response and initial power. Register for an Abercrombie & Fitch account & enjoy the benefits of faster check out, order history and save wish list. These LED's help with. Quality OEM product right there. We are leading providers of fuel systems and Ultra Ram SBC EFI. Setting the timing on a 95° day will result in too mild of a curve, just as setting it on a 50° fall day will be too aggressive for summer driving. Whether you have a totally stock, factory equipped truck looking for a bit of extra “get up and go” or MPG, EFI Live is the best, most cost effective way to meet your goals. 6whp peak drop. Boost A/F targets are simple to adjust while timing curves can be retarded according to boost easily through your touch screen controller. If base timing isn't measured, almost any car can pass with heavily retarded timing. Shine the timing light at the harmonic balancer timing mark on the driver's side of the engine. Next thing I am going to do is start logging results to help me tune the timing curve. FiTech Go Fuel Fuel-Pressure Regulators. This system makes tuning your Supercharged engine easy! Bolt on 2 of these tough looking throttle bodies and drive your car as the system dials itself into the perfect calibration for all of your driving and. I am using an HEI style distributor locked out, you have to lock out the timing otherwise the inputs for the fitech will stack on top of the HEI timing curve. • Modify the table according to your combination (in this case we set all cells to 31 degrees, which is exactly how timing was set up before we began the EFI conversion. From this I know that from 4200 - 5000 rpm I need to adjust my fuel, or timing to get rid of the knock. The problem going too much in one direction mechanically then trying to adjust it electronically would be the arcing issue where you could ignite the wrong cylinder or you are just too far away. In this time, the piston/crank travels about 55°. The cam is a new grind, that we have introduced as our Eagle Cam #2256. A letter of complaint was drawn up smartly, and taken around to the garage, where there was a calm 5 minute discussion. In addition to the innovative, square design, the Third Generation C10 featured a host of natural curves and lines, spanning from the hood to the beltline, and eventually, the rear tailgate. The only real 100-percent way to find the correct timing is to use a chassis or engine dyno,” suggests Macy. #ad The computer in the fitech unit has a base timing setting, that should match your base timing so if your base timing is 12. FiTech Go EFI self-learning fuel injection is out-of-the-box compatible with your 300-625 horsepower dual quad or tunnel ram motor. Don't "change the plugs" like some people suggest, it’s a waste of time and money. Our nitrous cam will then have the valve timing at 31-59-77-23. Our folks have several options from basic to completely trick. Compared to test5 (same intake with Holley 600 carb) this is a nice gain in low end torque and a small whp decrease – by 2. - scat crankshaft, clevite bearings. What is meant by a timing advance curve? The advance springs and weights are designed to advance the timing as the engine speed increases. Ignition timing is easily the single most important tuning adjustment on an internal combustion engine and yet the concept of ignition curves continues to be elusive for many enthusiasts. What this was telling me was cumbustion was bad. So how well does the Ignitor ® II work?. Fitech 400 hp running rich. Once the hardware is in place and ready setting up the timing curve / ignition map is easy. If base timing isn't measured, almost any car can pass with heavily retarded timing. In fact, the first of the mechanical variety appeared on French aircraft in the early 1900s, but most of us are more familiar with the early systems pioneered for race cars by Ed Winfield and Stu Hilborn. Engine Protection Feature. "Every combo likes a different amount of timing. Rotate the distributor counterclockwise to advance the timing. Buy Curve Blades online - Supercheap Auto. What are the default values for a LS motor ? Attached are pictures. 90 gears in the car, my highway cruise rpm is right at 3000, and thinking 54* might be a tad. The chart allows you to map out an advance curve based on manifold vacuum (much like the vacuum advance on a mechanical distributor). This Kit is for the guys who have 671 and 871 Roots Superchargers or make up to 1200 HP naturally aspirated on their Dual Quad setup. I am using an HEI style distributor locked out, you have to lock out the timing otherwise the inputs for the fitech will stack on top of the HEI timing curve. This engine makes an incredibly flat torque curve, 128 ft-lbs. Handheld Controller Feature Definitions – FiTech Fuel Injection read thru the Spark Map page and hopefully that will help. Whether you have a totally stock, factory equipped truck looking for a bit of extra “get up and go” or MPG, EFI Live is the best, most cost effective way to meet your goals. Your results may vary depending upon compression ratio and the sophistication of the ignition system. Big Block Chevy Tuning - tips, timing, idle RPM Discussion in ' The Hokey Ass Message Board ' started by BOSTONCAMARO , Oct 9, 2012. 90 gears in the car, my highway cruise rpm is right at 3000, and thinking 54* might be a tad. FiTech Ultimate LS Truck 500HP EFI Kit 70006 FiTech Ultimate LS Instructions Complete Self Tuning Induction Systems for LS engines designed for the do-it-yourself Hot Rodder to the professional EFI. Timing control provided by ECU. Below is the upper spark timing table of a VX SS. The only reason that this is done is that it is much easier to put timing marks up through 38 degrees on the damper AND they will be visible when. A curve can be created from the MAP Advance Curve graph on the upper right of the screen. Also total timing of 38* may be high for some engines especially if you are going lean at any point with your carb setup. So under the same conditions as above, the timing needs to be increased to: 55°-17° = 38° BTDC! Timing advance is low at low engine speeds, because the piston is moving slowly, and the fuel has time to burn near TDC. 00: 615 torque @ 4500 rpm. Edelbrock Crate Engines are 100% brand new and utilize our proven Power Package formulas to offer breathtaking performance right out of the box. #ad Powered up here is the home screen of the FAST controller. These Mounting Brackets include an extrusion on the frame side which is designed to dowel into a hole in the frame. Opti-Spark is now the standard ignition system on 5. It allows the use of a carburetor on these originally computer controlled engines, offering maximum power and a broad torque curve from 1500-6500 rpm. This provides air/fuel ratios that are reasonably smooth and respond predictably to changes. FiTech, MSD Atomic, Holley Terminator, etc. FiTech's Ultimate LS kit comes with a knock sensor control and is custom cam friendly. FiTech Go Fuel Fuel-Pressure Regulators. You want it retarded so it still runs okay. They feature a highly accurate Hall Effect crank trigger sensor for a noise free RPM signal to the EFI. Sign up is fast and easy. Engine Protection Feature. Hello, I have a 408W and I am looking on some advice to find the best advance curve/timing for it. The decay adjustments shape that curve. So lets say you set your timing @ 35*, pull 20* for start and idle. My Build: 6. Using FiTech s proprietary self-tuning technology, you can get your car on the road or track faster than ever, using just your gas pedal & the included handheld controller. But now thinking about it, the Fitech handheld was telling me what timing it was giving it and the timing light agreed. So, what ya really want is as much pressure as posiable as close to top as possiable. DAVE's small-body HEI's. This is the best way to tune on h. Choosing a particular type of camshaft for an engine build is an important decision that has to be made before any other parts are ordered or machined. It also presumes you have some way of evaluating your changes which is even more doubful. FiTech has added two new regulators to the company’s Go Fuel line: a compact model (shown here) and a larger dual-outlet version. 006": 274° / 286° Duration @ 0. "Every combo likes a different amount of timing. Hi Jeff, I know this is an old article, but I've been playing around with using vacuum advance along with ECU timing control. These constants are derived from the: peak [email protected],. To use the. The 6LS controller is programmable by means of simple plug-in modules, an optional hand-held programmer, a laptop computer; giving the user a variety of ways to adjust RPM and timing. I'd try to end up with 34-36 total but the initial is where you need to experiment first. Sometimes I have problems just posting on a board, lol. I've revised the curve on my computer, just haven't had a chance to upload to the ignition yet. 5% change in a Holley type main jet. FiTech the one that controls timing,2 cooling fans and bumps idle when a/c is turned on. The original EEC I debuted in 1978 to control ignition timing, exhaust gas recirculation, and secondary air injection by way of the Thermactor Air pump. Once back ON, go to ADVANCED SETUP, select IGNITION TIMING, and then select LOCK TIMING. No regulator, pump controller, gauge or ignition box. There is a little bit of a learning curve to get started as their manual leaves something to be desired, but I could help provide some tips that I have gleaned from many other forums. If you think fuel map programming is difficult just try to program your ignition curve. GMC Motorhomes International was founded in 1982 by Ralph Luby >> GMC Motorhomes International 1402 So Cage Blvd, Unit 273 Pharr, TX 78577 | 612. Ignition Timing and The Advance Curve. Fitech ultimate ls fault codes. Texas Speed & Performance is your one-stop shop for all LS and Gen 5 LT1 & LT4 performance parts and engines! We are among the largest LS and Gen 5 LT1/LT4-specific shops in the country, and we machine and assemble all of our engines, camshafts, and Precision Race Components cylinder heads in house!. EEC II arrived the following year, adding. The decay adjustments shape that curve. Later, we add some timing in the idle and drivability areas to improve the burn of the mixture, improve fuel economy, lower exhaust temperatures, etc. One of the drawbacks of stock CCC is the somewhat conservative timing advance curves, however, aggressive timing advance is often used as a bandaid for inefficient engine setups. I'm setting the spark map in my FiTech system to replicate a mechanical advance curve and letting the vacuum advance do what it always has, account for the load changes. For more detailed specifications regarding your specific application or for "strip only" use, please consult a professional engine builder. I do NOT run FiTech controlled timing curve. Also, a return fuel line from the fuel pressure regulator. I've revised the curve on my computer, just haven't had a chance to upload to the ignition yet. Why do we do this? We are checking that our commanded ignition timing is the same as our actual ignition timing. C3 Corvette 1968-1974 Big Block Timing Chain/Gear Set. The following specifications are general guidelines offered to aide in building an engine for street use. Compared to test5 (same intake with Holley 600 carb) this is a nice gain in low end torque and a small whp decrease – by 2. Fitech backfire on deceleration. Some of the B diesels are manufactured byDaihatsu and can be identified by the letter "D" on the timing cover. Find MSD Digital E-Curve Pro Billet Distributors 8504 and get Free Shipping on Orders Over $99 at Summit Racing! MSD Digital E-Curve distributors will drop right into your engine and fire up with three simple connections! Not only are there no external controls or boxes to mount and connect, but you can set a timing curve with the twist of a rotary dial! That's right, no more springs or stop. No mater how what ignition system you use, if the ignition spark timing is not correct for the engine needs, the engine will not produce all the potential power built into it. US NAVY VET - 65 Custom Fastback GT-A-code. This 2054cc engine is going into a Manx Buggy and should be a blast to drive. I am now using my MSD 6AL to control timing and plan on trying to get the Fitech timing working again or switch over to a MSD 6530 digital 6AL that I already have. The FI performed great. Flow must be increased throughout the whole system and fuel curve. This system makes tuning your Supercharged engine easy! Bolt on 2 of these tough looking throttle bodies and drive your car as the system dials itself into the perfect calibration for all of your driving and. 6 out of 5 stars 25. Hopefully this will help those who have the FItech get the IAC and some timing settings set right, again all engines are different so what mine likes for tim. A fuel pump block-off plate will be. Ultimate LS Standalone ECU with Trans Control - #70051. AutoMeter AFR dummy gauge ($300). ) with factory intakes, choose the stage 2 intake manifold type. But now thinking about it, the Fitech handheld was telling me what timing it was giving it and the timing light agreed. It looks like a theoretical timing table with no evidance of customizing the values across the loads and rpm. The rate at which the springs let the advance weights move determines the timing curve. Write and store multiple tunes that can be switched even while running. FiTech Go EFi 2x4 1200HP Power Adder System 30064 Black Finish Description This Kit is for the guys who have 671 and 871 Roots Superchargers or make up to 1200 HP naturally aspirated on their Dual Quad setup. 7L LT1-LT4 engines. EEC II arrived the following year, adding. Next thing I am going to do is start logging results to help me tune the timing curve. I need to reprogram the advance curve in my electronic ignition and since I installed Windows 10 on my computer last week I'm not able to connect to the ignition. This system makes tuning your Supercharged engine easy! Bolt on 2 of these tough looking throttle bodies and drive your car as the system dials itself into the perfect calibration for all of your driving and. Ultimate LS Standalone ECU with Trans Control - #70051. FiTech's kits offer timing control, but it is not required. Contact us. Fully adjustable and constructed of steel, the 3’ long x 1-1/4” wide face is Perfect for replicating body panels, as a template for plasma cutting or even use on wood projects. that means. Valve Train Geometry. To find out more including how to change your settings, please see our. What is meant by a timing advance curve? The advance springs and weights are designed to advance the timing as the engine speed increases. Texas Speed & Performance is your one-stop shop for all LS and Gen 5 LT1 & LT4 performance parts and engines! We are among the largest LS and Gen 5 LT1/LT4-specific shops in the country, and we machine and assemble all of our engines, camshafts, and Precision Race Components cylinder heads in house!. (pat)>> we aren't gonna change the timing right now because we noticed on the initial run the carb was a little on the lean side. Ignition timing is easily the single most important tuning adjustment on an internal combustion engine and yet the concept of ignition curves continues to be elusive for many enthusiasts. 03-31-2010, 08:07 PM. 7L and the 7. Ignition Timing and The Advance Curve. Plan is to put her in gear, watch the map gauge on the fitech, and adjust my timing until I maximize the map sensor. Your results may vary depending upon compression ratio and the sophistication of the ignition system. By simply swapping out the black 18* MSD bushing (or other MSD stock bushings provided) and inserting one of our custom machined bushings it will allow you to set you idle timing at 22* (14* Bushing) or 26* (10* bushing) and not allow the timing to exceed the desired 36*. The value you enter depends on your model and setup. #ad And under the hood with the engine running we can see all the status LED's on the FAST ECU. safeconindia. More fiddling to do but it's easy stuff. Pertronix Electronic Ignition Systems and Coils. Cleetus McFarland "Bald Eagle" LS1/LS2 Boost Cam. that was actually really encouraging. For more detailed specifications regarding your specific application or for "strip only" use, please consult a professional engine builder. Why do we do this? We are checking that our commanded ignition timing is the same as our actual ignition timing. Fitech wiring - bl. Rotate the distributor counterclockwise to advance the timing. If you still have detonation, make sure the TDC mark is accurate, the timing curve (advance rate) is stock, and the antifreeze is not over 180°F; and check to see if the heads have ever been milled or de-carboned. It has a peak in the middle of it which is a problem and also low timing advance at low rpm and also at high rpm. Our website uses cookies to improve your experience. You can tell there is a vacuum leak if the timing reading fluctuates during reading/setting, should be steady. This is all per shop manual. If your credit card has already been charged for the purchase and your order is cancelled, FiTech Fuel Injection shall issue a credit to your credit card account in the amount of the incorrect price. I am now using my MSD 6AL to control timing and plan on trying to get the Fitech timing working again or switch over to a MSD 6530 digital 6AL that I already have. I haven't read a FITech installation/tuning manual, but there are terms they are using that don't make any sense to be. What are the default values for a LS motor ? Attached are pictures. - comp aluminum roller rockers 1. That's a good place to start getting timing dialed in. When the controller and the damper are reading the same timing at idle, you lock the distributor down and the computer does the rest. After retuning my car with the new pulley settup he was ready to prove his point. Once the hardware is in place and ready setting up the timing curve / ignition map is easy. I gave it a little gas while. '81+ cars have a differnt thread pitch than the earlier cars. I do it by setting total timing. The closer to the lower number (30 degrees) the total timing is, the safer your engine will be. If we over or under advance our ignition events, we could cause damage to the engine. My vehicle emissions sticker is missing so I don't know the initial timing, and what the centrifigual advance timing would be and the vacuum advance setting. For example, 100 kW wheel power, can be obtained in 2 nd gear, 4 th gear and 5 th gear. The FI performed great. If you want to write your own rebuttal, do it on your own wiki article. the Vacuum curve. long tubes. Update , pulled the Fitech 1200 dual quad power adder off and going back to the 1050 dominator , customer service rates zero with me , My thoughts are the system has great potential but it's a crap shoot if you don't get one that works like most made in China stuff you are SOL ,. The reason I chose the FiTech system apart from price is that a lot of parts that make up this unit are OEM so getting replacement bits will not be an issue. I left the stocker on the car and I returned the. #ad FAST really has the software setup right. I’m setting the spark map in my FiTech system to replicate a mechanical advance curve and letting the vacuum advance do what it always has, account for the load changes. The following specifications are general guidelines offered to aide in building an engine for street use. Limited timing/fuel control. The power adder system is nice though in that it controls an electric fan and the timing curve if you have a compatible distributor. This provides air/fuel ratios that are reasonably smooth and respond predictably to changes. These systems don't do anything with the transmission control, so you need to run a stand alone transmission controller for the 4R70W. This is to make sure that your advance curve occurs as we entered it into our ignition table. To further improve power, the LY6 also featured Variable Valve Timing (VVT) and slightly higher compression. Just because you have run a big-block Chevy before does not mean all big-block Chevys like 32 degrees of timing. I haven't read a FITech installation/tuning manual, but there are terms they are using that don't make any sense to be. Then set the run curve like you described. On one hand I like the idea of being able to tune A/F ratios, timing and not have to deal with carb hesitation (sometimes due to improper tuning). I think that what is confusing you here is how the total mechanical advance is read by using a timing tape and timing marks on the damper instead of the timing marks on the timing tab on the engine. This engine makes an incredibly flat torque curve, 128 ft-lbs. The timing curve is whatever their base tune was. AutoMeter AFR dummy gauge ($300). There is a cam sync output for fuel controllers or data acquisition. If you can tune the curve, cutting the whole timing curve by 50% is a good start for smog. Features: 74 Stroke x 94 Bore, Los Panchito heads 9:1 compression. Don't get me wrong, the factory (read: old) HEI distributor in my bone-stock 350ci engine still functioned "well," but it was beginning to show. This is my first post here. We reach almost all horsepower endeavors. Fuel injection has been around for a long time. I run 44* TOTAL timing (in by 2800 or so), 33* INITIAL, with a custom made 11* mechanical advance limiting bushing. DAVE's small-body HEI's. I can get the numbers if it becomes an question later, but my current issue is with starting. Now as for timing curves and such, bone stock, I found that I could crank in a lot of advance, fast. I have an 85 GT with the 5. 229/244 cam. I gave it a little gas while. The timing curve is whatever their base tune was. Ease of tuning alone makes it worth it. New option A: SBC 434, twin turbo, same CSU carb ($1300),locked-out E-curve, new Programmable 6AL ($375), new Aeromotive pump controller ($325), new PWM fan controller ($200). "IMO if you want that much timing at idle, lock the distributor out and set your Total Timing as your Base Timing and forget about itHell you want all your timing in by 3000rpm anyways, so if you have a 4000rpm stall what good is having a timing curve in the first place" I'm going to have to agree with TC. achieve the correct timing curve. With EFI, it is possible to use a more aggressive timing curve than you might be able to with a carburetor. I'm not real familiar with Edelbrock's systems as I try to avoid systems that require chips to be programmed for them. Often timing set ups can be troublesome if other problems. This build features the Cast Iron LQ9 6 bolt block. Compared to test5 (same intake with Holley 600 carb) this is a nice gain in low end torque and a small whp decrease – by 2. In addition to the innovative, square design, the Third Generation C10 featured a host of natural curves and lines, spanning from the hood to the beltline, and eventually, the rear tailgate.
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