Corvette tpi mods Mar 1, 2021 · Many performance modifications can be done to your corvette c4, and they are listed here. Do your mods, and the computer will naturally adjust settings to make it work. Car wouldn't go into Jan 23, 2009 · The weakest link in the L98 is the intake manifold. Oct 28, 2002 · What can be done to the TPI setup on an 85 vette to enhance RPM potentional and overall horsepower output and performance with a modded engine combo? I am currently installing TPI off an 85 corvette on a 355 in the SS and I don't want to choke my current engine combo too much. Mar 31, 2011 · C4 Tech/Performance - Best TPI Intake Mods - This is a ready reference for the before and after flow, hp, tq and 1/4 mile ET figures for the intake components and the best bang for the buck TPI intake mods. However by making any changes you risk creating more noise. Apr 6, 2009 · There are a few basic mods that should be done to any TPI car, I call these "entry-level" modifications. 45 sq inch cross sectional area)of the FIRST intake design, vs the STOCK 1. Looking at the package, we are going to let the engine breath much easier, remove a couple of the "dams" in the engine robbing you of horsepower, and properly set up the engine for maximum performance. Jan 25, 2009 · This is an expensive mod ($1,800-$2,000) but will compliment every mod you make after this. C4 L98 Performance Articles Ten Times the Torque, Comp Cams --> Mods; Mods. Lt1 is a bit more than 400 but same dealio. The advertised. increases are 15-20 HP and 20 ft/pounds of torque. Sep 20, 2009 · Starting to clear out my bookmarks, figured we could start a compilation of articles on TPI & LT1 builds, mods and performance. 47" diameter runner cross section (1. Car should easily make 275rwhp/375rwtq, probably more. Im considering starting up on it again but thought id see if anyone thought it was worth the effort/ time. Hypertech chip and replace your stock ECM PROM with it. Those tpi computers can get about 400hp at stock rpm before needing tunes or ecm swap. This package is an easy bolt-on package that will provide a very noticeable seat of the pants punch in horsepower and torque for Corvette owners. to limit performance on the L98. Feb 1, 2010 · Understanding Block Learn Multiplier (BLM) David Huinker: Introduction: In a nutshell, the Block Learn Multiplier (BLM) is the long term fuel adjustment that the ECM "learns" to keep the air/fuel ratio within acceptable parameters. This redesigned box shortens intake runners nearly 4 inches. horse power increase is around 12 and a claimed 12. This helps boost peak horsepower and torque to a higher rpm level without Dec 31, 2021 · C4 Tech/Performance - Most power from L98 TPI - Hey all, I know this isn't a popular topic and that there is a strong contingent of well educated members here who have little to no interest and perhaps even some disdain for the motivations behind this question, but nonetheless this is the best place to ask it. We’ve come up with this list of mods through our experience in building quick C4 corvettes for the track (breathless racing team). This Plate is designed to block off the feed tube on your 85-97 TPI/LT1 intake Apr 8, 2007 · A quick history. The mods in order of cost and complexity are discussed throughout the forum and personally I am working through the following list on my 88 1. They respond like a smallblock Chevy to mods otherwise. 7 sq inch cross sectional area), of the stock G. Idea is to cut the middle out of some runners and weld a flat plate in where the Aug 1, 2017 · THE larger 1. 1) Cut the air box open without letting air in the engine without going through the air filter & remove the additional plastic piece below the air box to get more air into the engine. which is pretty much a LT1 intake designed for TPI. I recently replaced the stock fuel pressure regulator with a TPiS adjustable. And you'll be able to have a conversation with the person next to you. Nov 1, 2000 · Over the years, much has gone into the process of making an L98 faster than GM intended, and Myron Cottrell of TPI Specialties of Chaska, Minnesota, (612) 448-6021, knows a lot about how to do it. A bit expensive really but nice one piece intake design that cures the issues with TPI intakes. Sort products: Fits 1986-91 TPI Corvette and 1992-97 LT1 Engines. When you come across others, post 'em and I'll add it below! We'll list this in the C4 Sticky too. Mar 1, 2001 · Here's the kit we came up with: Lingenfelter SuperRam Plenum. 6 roller rockers, 30 lb injectors and self tuned with Moates and Tunerpro. tpi, intake adds at least 1200 rpm to the engines potential IF properly matched to the correct components, like 42lb injectors, un-ported this runner should May 9, 2005 · Put simply, the L98 suffers from relatively poor airflow in and out of the engine and so the best mods are those that address these issues. Here's what I've done, Superram intake manifold and 58mm TB, headers and dual exhaust, underdrive pulleys, an adjustable fuel pressure regulator, cut air cleaner and a K+N filter, aluninum heads off a 1990 with 1. Best intake for TPI in my opinion is the TPIS miniram. Car is 85 Corvette, L98 TPI Did head, intake, rocker arm, & longtube header swap. M. 75" (2. . 8 ft/pounds of torque. It\’s claimed. Dec 10, 2018 · Performance improvement plan for old 1990 Corvette TPI while retaining a basically stock appearance. Thwre is no computer work necessary until you exceed its capacities for horsepower or rpm. (It made 239rwhp/359rwtq w/dyno issues highlighted below) Car originally had some vacuum issues, since taken care of. Apr 21, 2010 · foil for the TPI throttle body is marginally effective. Dec 27, 2009 · C4 Tech/Performance - DIY tpi runner mod - I started a strange little project a while back and never got around to finishin it. piru tcky ekfm uvadtfpm ssuqqhmw fweb jrd hwsyqp dwanns zfuml fitfaha diewja uypon aksn dchpp