C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Supercharged LTx Performance Thread

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Old May 16, 2013 | 11:20 PM
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96CollectorLT-Score's Avatar
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Default Supercharged LTx Performance Thread

Calling all LT1/LT4 guys. Just finished my Procharged LT4 build and I figured I would post of a thread to share Performance Numbers (Track/Dyno) for all the Supercharged guys. I found it hard to find examples of what gains to expect going into this build and I thought this would be a great way to share some milestones. I have yet to get any numbers for mine yet but soon.

Post away!!!
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Old May 17, 2013 | 11:42 AM
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1992 Fully Built LT4/LT1, 9:1 CR, 236/242 Cam, Vortech YSi with pulley sized for about 16pounds of boost @ 6200RPM.

Last dyno test gave 544RWHP / 565RWTQ @ 4800 RPM - it was running out of fuel so we shut it down. I installed a huge fuel pump and the next dyno is due in June. Expecting 650 at the wheels :-)

I'll post results!

See here for some videos:

http://forums.corvetteforum.com/c4-g...t-at-idle.html

Last edited by djxib; May 17, 2013 at 11:45 AM.
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Old May 18, 2013 | 03:02 AM
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djxib is on the right track to make serious power.

I have an LT4, 2-bolt main, machined for splayed caps, 210 AFR eliminators, 383, 23x/24x cam with 113-114 LCA (engine was built by the previous owner), T-trim seeing 11-12psi, tune is not dialed in. Meth injected. "Feels like" 525-550rwhp. Will get her on the rollers soon.
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