Mar 1, 2001 · 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 …

Dec 31, 2021 · 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 …

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 …

C4 Tech/Performance; TPI Repair; Notices. C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine TPI Repair. Reply Subscribe . Thread Tools …

Sep 20, 2009 · 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 …

May 10, 2023 · So if you want to get up to around 350 hp and 400 torque, you can most likely get there with a good cam, headers, tune, injectors, and the stock TPI intake. Anything more than …

Aug 1, 2017 · 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 …

Jul 12, 2006 · 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.

Apr 14, 2012 · 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 …

Dec 10, 2018 · Performance improvement plan for old 1990 Corvette TPI while retaining a basically stock appearance.