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

Couple more questions

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Old May 13, 2005 | 12:22 AM
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Default Couple more questions

Does anyone know what a stock TPI on an L98 would flow? I am trying to figure out about what kind of horsepower numbers my engine will have. Right now Desktop Dyno says I will be putting out 218 horsepower at the flywheel. Sounds awful low to me. Is the stock exhaust classified as stock high performance? I don't have the actual flow numbers for my heads so I am using the "Wedge/fully ported, large valve' selection. If this is all I can expect out of my 383 then what's the use of changing it?
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Old May 13, 2005 | 12:43 AM
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My 383 with TPIS largemouth intake and stock ported throttle body made 273 rwhp on the dyno...

It also made 400 ftlbs of torque.

L98's are excellent torque motors. My combo was designed around mostly street use. It pulls real hard without pushing it to the floor.

If you want big horsepower/high RPM, you will need to change the intake to a short runner design.
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Old May 13, 2005 | 12:56 AM
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The software says it is only 218 on torque. This is also supposed to be at the flywheel, not the rear wheels.
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