16nrollininaws6

Is it true that GM underrates the F-Bodys to make the Corvette look better? I have read things on this, but I figure asking here would be more accurate. Some of the special edition Camaros like the Intimidator just have exhaust and a tweaked intake and they jump from 325 to 380....hmmm....are F-Bodys truly underrated?

jrp

iTrader: (16)

short answer yes the fbodies are underated and put down about 280-320rwhp stock depending on year and tranny.

long answer do a search as this has been debated on countless sites over the past few years.

BlackWS602

yes they are under rated

Sheomet

Generally, you could say that they put to the wheels what GM rated them at the crank (or somewhere close).

NBM2001z28

iTrader: (43)

my 2001 Z28 with an M6 laid 322/344 with a cut out and the free ram air mod.

unit213

I agree with the theory that GM under rated the fbody in order to "protect" the 'vette.
Yes, they are under rated.

Jpr5690

iTrader: (13)

ok what i think is yea gm smudged things for the vett but they did not lie instead they produced rwhp for the ta while gross hp for the vette which imo is still lieing or at lease intentional deciet

jrp

iTrader: (16)

i dont think they did it to neccessarily "protect" the vette. the fbody and ybody are totally different animals. i dont think someone in the market for a c5 would suddenly change there mind just because a fbody puts out the same power.

Bowtiered

hmm, THAT'S why my C&D makes the 1999 Stangs look SOOOOO pathetic when compared to 1999 T/As and SSs. or maybe they were 00s in a 1999 C&D. oh well, the stang lost horribly in stock form.

this is SVT cobra stang too.

BlackWS602

This I disagree. Back in the 60's Pontiac designed a car that looked just like the Vettes of that time. It was an awesome looking car but GM shot it down to protect their flagship vehicle. They told the guy to design a car to compete with the mustang and thats one reason the Firebird line was born.

GM does anything possible to protect its flagship of the company. Why do you think they are letting the GTO have decent HP numbers? Because the new Vettes will be more powerful than that, or at least according to GM.

jrp

iTrader: (16)

true, and being that the vette is gm's flagship car just exeplifies my point that someone in the market for one wouldnt even look at a fbody even if they knew they put out the same hp.

DANSLS1GTO

Plus, it's easier to underrate because nobody claims false advertising when they get more hp than expected. There's guys on the GTO site complaining 'cuz an A4 put out 291 rwhp advertised at 350 flywheel. Sounds about right to us logical people.

Jpr5690

iTrader: (13)

yea i guess gm thought ahead and saw for this croud it would be better to underrate than over rate

DeepBlueZ

i agree with whats already been said....regardless of what engine is in the 4th gen f-body they were always given a rating of just enough horsepower to blow out the mustang while at the same time being low enough to distinguish a clear line between them and the corvette...dyno # basically prove that the C5 Vette will dyno almost exactly the same numbers as an LS1 f-body....they even tend to gain the same mod for mod....Even the LT1 was underrated albeit not as much....the LT1 corvette made 300 hp while the "detuned" f-body made 275-285 depnding on year...

z98

Lies lies I tell it you. Its just the magical drivetrain made from rainbows and angel's breath that doesn't lose horsepower to the ground!

Dragster350cid

I know that 2002 they changed the intake manifolds to the LS6, I'm sure a lot of you know that! Thus, they took a less powerful cam and put it in the LS1. I figured they did this to keep the hp under the vette. I had a 98 Z28 and now I have a 2002 WS.6, they changed the engine arrangements around a little bit in those years!

jrp

iTrader: (16)

01 and 02's got the ls6 intake and the 6.0l cam. the reason they could put the ls6 intake is the truck cam negated the need for the egr system.