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

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Old Sep 21, 2007 | 12:05 AM
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I have a 92 corvette coupe with ported heads and intake, 1.6 rockers, LT4 valve springs, 1 5/8 longtube headers, 3000 rpm stall, and a 3.54 gear. Does anyone have an idea of what I might run in the quarter.
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Old Sep 21, 2007 | 01:33 AM
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Heck, faster than some, slower than others, LOL... take it to the track and find out for sure...
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Old Sep 21, 2007 | 05:37 AM
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Does anyone have an idea of what I might run in the quarter.
I would guess high 12s if you can hook it up and have a good DA and launch weight is around 3,380lbs.
Lotta "ifs" eh...

Once you have trap speed use this equation (ET = 1357 / mph) to get best expected ET from trap speed.

Last edited by 65Z01; Sep 21, 2007 at 05:40 AM.
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Old Sep 21, 2007 | 06:09 AM
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You mention ported heads, but did not mention a different cam. I assume the cam is still stock. Is this correct? Also, the ported heads, if done incorrectly can actually rob power on a LT1. Im thinking low to mid 12's assuming you get traction, the porting was done correctly, the cam is stock, and weather is ideal. But take it to the track and let us know!!

Last edited by 93 ragtop; Sep 21, 2007 at 06:16 AM.
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