383 tpi tuning software

To start viewing messages, select the forum that you want to visit from the selection below. I really need some serious engine management work to run any more than 10psi of boost. My 85 z28 and eprom project university of delaware. Third generation camaro 383 tune camaro performers magazine.

Condition based monitoring please use the following links for the most up to date software releases for tpis range of cbm devices. Dress your ride with fuel injected gm 383 stroker base fully dressed long block crate engines from blueprint engines. In this video i will show the equipment needed for do it yourself prom chip tuning. Learn the basics of tuning your own tbitpilt1ls1 pcm, including timing, fuel curves and more. For some early 9697 vehicles, it is often the only solution.

New to the holley forums and sorry if im beating a dead horse, but i had some questions regarding the use of a holley hp efi system in a tpi application. Tunercat obd2 tuner must be purchased with our roadrunner hardware either with a complete roadrunner ecm or just a roadrunner guts kit due to licensing restrictions. Perfect for engine breakin, longevity testing as well as tuning. The same tuning software, such as efilive, is used with this pcm, regardless of. This 1997 trans am has been previously modified with a 383ci lt1 engine. Currently im working with a guy that put tpi on a stock tbi 350, and i was surprised at how much the volumetric efficiency tables changed. The tpi setup was made for a 305, it flows so bad that a miniram swap from tpis is worth about 7595 hp on a stock motor because of the rpm increase. Many still out there with tbi vehicles needing help getting more modern power levels and fuel mileage from older gm throttle body injected vehicles without going to the process of rewiring the vehicle to run a more modern fuel injection system. I currently have a 305 tpi in my camaro and i am planing on replacing it with the 383 in about 6 months. Goto ecmguy page lots of great info on gm ecms and tuning. Included were a massairflow maf sensor, throttle body, tpi plenum, runners, intake manifold, fuel pump, computer control system, wiring harness, plumbing, filters, gaskets, hardware, and an absolutely topnotch instruction manual. Stealth tpi induction l98 stroker installation super. I helped tune a setup like that using afr 195s and a mild 216219 or so deg cam with high lift.

Your scanning software is also going to come in handy during this process. You need to swap your blackbox vortec 9697 pcm for a 411 pcm and use a base calibration file for a 20012002 gmc savana or chev express van as these vans used teh older vortec 305,350 and were conrolled by the 411 pcm. Using marc piccionis megasquirtii to gm tpi adapter board tpi owners, now its your turn. Putting the finishing touches on lethal weapons 383 engine build with. I would spend a little time porting the base manifold and plenum an invest in some aftermarket runners. Read this document before reading the applicable tuning section for those controllers, which are here. Fitech fuel injection has been supplying automotive products, specifically fuel injection products, since 2012. Time driverlifted fordclassic chevy trucksused partsperformance parts. This adapter board fits inside a 165 ecu and lets you use megasquirt on your 86 through 89 camaro, trans am, or corvette. This chevrolet l98 tpi engine has its displacement stroked to 383 cubic inches and has stealth mods installed including a new cam and an extrude honed tuned port. Learn the basics of tuning your own tbitpilt1ls1 pcm, including timing, fuel. Eventually id like to play with ms or something and get a handle on tuning. Vemaster for 9495 lt1s vemaster for 9093 tpislt1s for easy automatic tuning.

I know i know, from what ive researched, the 383 is too big for the gm tpi, and. Check over on for info about tuning your own chips. While tbi has a few crippling limitations it is still possible to pull a little over 1hp per cubic. The ht383e is a powerful, emissionslegal small block crate engine for your 199699 gm truck or suv see images, dyno specs, installation info and more. He has a 383 with a small to midsized cam, light head work and full. Ignition timing for modified engines an often neglected but important area when tuning an engine is the ignition system. During the initial run, you will want to monitor knock counts and knock retard. This is ugly and only has a possibility of working for low boost setups.

The key reason the the 8892 l98 350 tpi motors made 245hp and the 93 lt1 made 275hp is that intake. I got it on the dyno yesterday and i gotta say im pretty happy with. The engine easily revs to 5000rpm, has larger tpi runners, 228 cam, 32lbs injectors. It features a 350 tpi crate engine equipped with a twinturbo, qa1 double adjustable shocks, a. Do you not have any interest in longterm tuning where you would need to buy your own equipment and tuning software. Preoptispark small block chevy v8s with tpi or tbi injection and hei ignition with electronic spark timing seven or eight pin hei module much of this article will apply to other 1980s era gm cars including injected big blocks and even fire v6s. The is an introduction to tuning with a programmable electronic fuel injection ecu. Introduction tunercat obd2 tuner is a software package that allows tuning of 96current gm vehicles. Theres plenty of software out there some of it free but you need a chip and the. Learn the basics of tuning your own tbi tpi lt1ls1 pcm, including timing, fuel curves and more.

Or, better, find the bin on the internets via the bcc labeled on the top of your chip. Cam and heads for tpi discussion in engine topic started by prototype4342, feb 1, 2012. This will bring the effective rpm range of the tpi back to the 5. Would you like to make your racing program more efficient. Tuned port injected tpi engines with vortec heads is a reality thanks to the performance team at sdpc.

Recently pcm burned a chip for my 87 corvette with a 383 custom built a months ago. My 1991 z28 3rd gen camaro on the dyno with new 383 stroker engine c7vette. Best intake for tpi in my opinion is the tpis miniram. Our folks have several options from basic to completely trick. With bone stock tpi manfold parts the 383 will reach an rpm limit around 424500 rpm. Building any engine from scratch requires a significant investment of both time and money. Save 383 tpi to get email alerts and updates on your ebay feed. Their new stealth 4150 models resemble a holley xp carburetor but have four 100lbhr injectors hidden inside the throttle body.

Sure, companies like comp cams, crane, and lunati can grind you a camshaft, custom or shelf, that can do a. Sdpc sd3816 tpi vortec lower intake baseplate sd parts. Putting the finishing touches on lethal weapons 383 engine build with a set of afr cylinder heads and an edelbrock highflo tpi intake. If you have a cam larger than 230230 duration, aftermarket or heavily ported heads, a 383 stroker, turbochargers, superchargers, nitrous, no maf sensor, no oxygen sensors, or want the 100% maximum performance your engine can offer, please contact a professional tuner, preferably a dyno tuner. The vortec tpi base manifold was designed from the original gm tpi intake to be a universal fit for. Bill was ready to throw in the towel and go back to the tpi ecm. How to diy prom chip tuning for obd1 chevy gm throttle. This website is dedicated to helping you learn how to tune your own lt1 car computer pcm, using the popular and inexpensive tunercat software as the model. Welcome to harris performance, this site dealing with the tpi tune port injection system used by gm from 1985 through 1992. After playing around with the corvette tpi on the 383, i can remove the intake and install the holley stealth ram with the same ecu, wiring harness and fuel delivery system. Learn how to download and update your holley efi software. Need help new 383 stroker problems chevy corvette forum. One problem, every time it gets up to operating temperature and the electric cooling fan turns on, the motor cuts off just like you had cut the key off.

Discuss general motors gmc, chevy, pontiac, hummer, cadillac, etc tuning topics here. Megasquirt support forum msextra need base tune gm 383. The car is not a daily driver or track machine, its a fair weather cruiser and may see the track. Despite the best laid plans of men, camming your engine still remains a bit of magic. Pcm, using the popular and inexpensive tunercat software as the model. All corvettes new from the factory run rich you may have heard owners refer to this as pig rich. Using the avr studio software, designers can program tinyavr and megaavr. Tpi kit provided all of the parts needed to make an intake swap. I can loan you one of my tuning kits to allow me to finetune your pcm to match your individual setup, without you needing. No i dont mean harder plugs, competition coils, lumenition etc. This service will tune, a mildly modified lt1 engine, using basic and fairly safe tuning techniques that ive learned. Ive been piecing a system together to run a tpi 383 and all i need now is hp ecu and a few plugs.

If youve been following our tpi engine build, you should remember us. My 1991 z28 3rd gen camaro on the dyno with new 383. If this is your first visit, be sure to check out the faq by clicking the link above. Its not really awesome, handtuning would work much better, but its as good as a really basic mailorder tune for free. This means there is more fuel than actually needed being dumped into each cylinder because all engines, even though they have the same parts are all a little different and gm selects a.

Custom tuning is highly recommended for all speed density applications that are different than stock. I have posted pages to help those with these systems overcome the limitations of those systems and point out what those limitations are. We are leading providers of fuel systems and ultra ram sbc efi. Our engine dynometer tests have shown a 40hp gain with the new sdpc vortec tpi base plate and stock vortec heads versus the stock l98 engine. Tuned port induction programming services can provide you with all your tpi programming needs from a custom street rod to a stock corvette, camaro, or trans am. I just purchased a 383 stroker kit from a guy that races small blocks at the local strip. Complete and ready to install, their ultimate, smoothoperating gm crate engines are delivered with self. Porting a tuned port injection lower intake manifold base. The tune and ability to do so is just as important as getting the right combination of parts when it comes to making tpi work for you. New 383 tpi build and dyno results corvetteforum chevrolet. Holley efi engineers have been hard at work expanding their popular terminator x platform to work with even more applications. Knock occurs because either the chamber is too hot and the airfuel.

I have fooled with this thing for 3 days and can not figure it out. I was a little concerned since the tune was a mail order one from pcmforless. Gm tpi tuned port injection memcal chip prom eprom. I just finished installing my new 383 stroker motor in my 1989 c4, fired it up today and sounds mean.