91 vette true or false???
Thread Starter
Burning Brakes
Joined: Jun 2003
Posts: 949
Likes: 0
From: smithtown ny
91 vette true or false???
i was taking to a corvette shop in the ny area he's been around corvettes all his life. a close friend of his use to work for gm for 25 yrs. and he told me lets say my car a 91 vette 6spd all these cars were under rated as far as horsepower/tq. and they were rated at the rear wheels not the flywheel???????????
Elite Torch Red Member
Joined: Sep 1999
Posts: 57,805
Likes: 23
From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
Cental/South NJ Events Coordinator
CI 1-2-3-4-5-6-7-8-9-10-11-12 Vet
CI-II Burnout & Drag Champ
St. Jude Donor '03-'04-'05-'06-'07
Don't know about that, but supposedly the '91 with the 6 speed was the most powerful L98 from the factory, 250 I believe.
Team Owner
Joined: Sep 2001
Posts: 62,139
Likes: 1,728
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
No the L98 is fairly accurately rated for HP, at the flywheel, as are all cars.
The torque number though, you can see some wide fluctuations on some cars.
The torque number though, you can see some wide fluctuations on some cars.
Last edited by vader86; Jul 29, 2004 at 08:52 PM.
Burning Brakes
Joined: Feb 2000
Posts: 927
Likes: 0
From: Saginaw TX
I believe that starting in 1972, that all horsepower numbers quoted from the factories were 'net' horsepower, that is, measured with all accessories, air cleaners and mufflers attached. Numbers prior to the change were gross numbers measured at the flywheel without any power robbing accessories.
Le Mans Master
Joined: Jul 2002
Posts: 5,818
Likes: 2
From: Alive and well in Burlington NC
Last time I dyno'd my 91, it put down 225.9 HP at the rear wheels with just a few bolt-ons and exhaust. If there is a 17% drivetrain loss (A4), that would put it at ~264.3 at the crank which would be an 19.30 increase over the rated 245 from the factory.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer