need backup
need backup i tried a search and couldnt really find what im looking for. i know the awsner but need people to back me up for proof. is it true that a corvette and a ls1 fbody make the same flywheel HP and have the exact same motor. and that sometimes a stock fbody will dyno over a corvette? and arent all cars rated by flywheel horsepower by the factory? thanks for your replys and can i someone state that fbody ls1's are factory underrated
Last edited by tavi_ws6; Nov 17, 2008 at 10:03 PM.
Staging Lane
Joined: May 2008
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From: CT
i tried a search and couldnt really find what im looking for. i know the awsner but need people to back me up for proof. is it true that a corvette and a ls1 fbody make the same flywheel HP and have the exact same motor. and that sometimes a stock fbody will dyno over a corvette? and arent all cars rated by flywheel horsepower by the factory? thanks for your replys
Joined: Nov 2001
Posts: 34,648
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From: Schiller Park, ILL Member: #317
Common question, we've had a ton of threads about this over the years.
An LS1 is an LS1. C5s usually dyno a bit lower than an F-body (at the wheels) due to the IRS sapping power (independant rear suspension).
The C5 LS1 cam specs are a tad different, thus negating the need for EGR. You'll notice that the LS1 (not LS6) intakes on any C5 have no EGR provision. But this minor cam/intake difference isn't enough to make any significant power difference. C5 exhaust system is a bit better stock for stock.
Overall, rear-wheel power is pretty much indenticle between a C5 (non-ZO6) and an LS1 F-body.
An LS1 is an LS1. C5s usually dyno a bit lower than an F-body (at the wheels) due to the IRS sapping power (independant rear suspension).
The C5 LS1 cam specs are a tad different, thus negating the need for EGR. You'll notice that the LS1 (not LS6) intakes on any C5 have no EGR provision. But this minor cam/intake difference isn't enough to make any significant power difference. C5 exhaust system is a bit better stock for stock.
Overall, rear-wheel power is pretty much indenticle between a C5 (non-ZO6) and an LS1 F-body.
