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

l98 330 hp with longtubes and elec. water pump?

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Old 07-13-2007, 04:52 PM
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Default l98 330 hp with longtubes and elec. water pump?

am i missing something, warent these motors rated at 230-245?
i was looking at a turbo kit that says they can make 500 hp on a stock l98 motor and saying the baseline on the motor is 330 hp,i can see if thats true if the original corvettes with l98 where tested by wheel hp but as far as i know they where tested on engine dyno's.
Check it out!
http://www.vetteweb.com/tech/vemp_06.../photo_11.html
Old 07-13-2007, 04:56 PM
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All manufacturers ratings are flywheel HP, not wheel HP
Old 07-13-2007, 04:59 PM
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Originally Posted by all show and more go
am i missing something, warent these motors rated at 230-245?
i was looking at a turbo kit that says they can make 500 hp on a stock l98 motor and saying the baseline on the motor is 330 hp,i can see if thats true if the original corvettes with l98 where tested by wheel hp but as far as i know they where tested on engine dyno's.
Check it out!
http://www.vetteweb.com/tech/vemp_06.../photo_11.html
it seems like a turbo kit goes perfectly with a l98 intake,high low end torque,huge high end hp!
if only i had a few grand laying around!
Old 07-13-2007, 05:00 PM
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Originally Posted by Zix
All manufacturers ratings are flywheel HP, not wheel HP
then why do they clame 330 hp from such a "respectable" corvette magazine,wouldent they know the diff?
Old 07-13-2007, 05:11 PM
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Originally Posted by all show and more go
then why do they clame 330 hp from such a "respectable" corvette magazine,wouldent they know the diff?
I didn't know there was a respectable Corvette magazine! They said it was a normally aspirated 332 HP. I didn't see where they mentioned it being stock. Did I miss something?
Old 07-13-2007, 05:17 PM
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they said as far as they know its stock,but with 330 hp u at least need a good sized cam and im sure they would have heard it on the engine dyno
Old 07-13-2007, 05:21 PM
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Go back and read again. Some of their numbers are unexplained but nothing seems contradictory.
Old 07-13-2007, 05:25 PM
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Originally Posted by all show and more go
then why do they clame 330 hp from such a "respectable" corvette magazine,wouldent they know the diff?
I'll believe the numerous stock/mostly stock dyno sheets I see posted here constantly over the "we think it's stock" magazine dyno sheet any day...

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