2018年12月10日 · Performance improvement plan for old 1990 Corvette TPI while retaining a basically stock appearance.

2011年3月31日 · 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.

2021年12月31日 · I like the power curve and values given by the Extrude Hone port/polish of the factory TPI base, TPIS big tube runners, and the port matched plenum plus larger TPI throttle body. I also like the curve and numbers of the big runner complete TPIS system.

2001年3月1日 · Here's the kit we came up with: Lingenfelter SuperRam Plenum. This redesigned box shortens intake runners nearly 4 inches. This helps boost peak horsepower and torque to a higher rpm level without...

BOLT ON 375+ HP TO YOUR C4 CORVETTE. ProCharger offers the ultimate power adder solution for your 1985-1991 Corvette C4 TPI (L98). Customers rely on our Corvette Superchargers for numerous benefits, including: • Get 55-75%+ more HP on 93 octane • Best tuning, drivability and durability

2006年7月12日 · Still, the TPI motoroffered impressive low-speed torque, with the curve exceeding 350 lb-ftfrom 2,500 rpm to 4,900 rpm and topping 375 lb-ft from 3,200 rpm to4,700 rpm.

2012年4月14日 · C4 Tech/Performance - New 383 TPI build and dyno results - Recently I installed a new 383 in my 91. I decided not to do a step by step build thread as there's been enough of those recently. Long time members here might be familiar with my car as it was probably one of the better running stock heads/cam TPI cars. It...

2009年9月20日 · Starting to clear out my bookmarks, figured we could start a compilation of articles on TPI & LT1 builds, mods and performance. When you come across others, post 'em and I'll add it below! We'll list this in the C4 Sticky too. C4 L98 Performance Articles. Ten Times the Torque, Comp Cams--> Click Here; Stealth TPI Induction - L98 Stroker ...

2014年6月11日 · Increasing the compression ratio is one sure way of increasing cylinder pressure but its not the only way. Camshaft selection, carburetion, nitrous and supercharging can all alter cylinder pressures dramatically. Excessive cylinder pressure will encourage engine destroying detonation with no piston immune to its effects.

2017年8月1日 · THE larger 1.75" (2.45 sq inch cross sectional area)of the FIRST intake design, vs the STOCK 1.47" diameter runner cross section (1.7 sq inch cross sectional area), of the stock G.M. 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 ...