944Fest (aka Dan P)

Drivetrain losses:

Firebird= 25%
968=15%

It makes a difference!

Danno

Yeah, I read somewhere that the Firebird/Camaro had some of the highest drivetrain losses. Didn't realize it was that high though.. Isn't just having an automatic automatically guarantee you a 20% loss or more???

streckfu's

That seems high. Maybe for the auto. I knew of guys with the LS1 motors getting 300+ to wheels with only a few mods (even more for the LS6 or SS cars). We had a dyno day back in Virginia and both Camero SSs (LS1s) put down over 325 (no forced induction needed).

Credit_Card_Guy

I have both a 89 944S2 and a 02 SS Z28, and I can tell you the Z is much better 0 - 60, but other than that the S2 can handle anything the Z can bring to the table. The upside with the Z is the ability to mod.

Tom R.

i saw dyno charts of the LT1, 275hp at the motor, 249 at the wheels. thats about 9%. i had a S2 and a F body, i will only say I am proud to be a mullet.

Fishey

What was faster the GTO or the Z?

horsepowerfarm

You can't be serious.....

MichelleJD

Hey Winslow......shouldn't you be out in the garage?!

horsepowerfarm

Yes I should, but I was working on "stuff " 'till 12:00AM last night. I thought iit would be politicaly correct to check-in with Susan this evening.

MichelleJD

Tom R.

the magazines say the gto is faster thats why i got one.

944Fest (aka Dan P)

My experience was otherwise. (ref drivetrain losses) I really don't need to start a debate, but here are a couple of bits:
from http://x-ram.com/dynotuning.html

"The base figure for determining horsepower loss through the drivetrain has always been a round-about figure of 20% of the net rated horsepower, but nothing could be further from the truth. Thousands of rear wheel dyno tests have shown that performance cars with big block engines and no options like air-conditioning, power steering, smog (fresh air) pump, using manual transmissions and top of the line drive-lines and bearings have 21 to 26% loss when compared to the same engine tested on a engine-dyno."

I watched an Impalla SS, (yes, an Auto) dyno a baseline. It is supposedly 260 hp and the owner was stunned it put down just under 200. The dyno guy, a manufacturer and career dyno-tuner said that was right on, with 25% losses. Obviously the 5 or 6 speed cars would do a bit better but that is the cost of a big, beefy trans and rear end. I respect if your experience was otherwise.
You bet your azz it felt great to get up there after his big V8 tank and post 290!

Fishey

i've seen dyno's, and the new GTO's atleast the 2004's dyno pretty well at roughly 300 whp, too bad the car weighs almost 4000 pounds, im happy to see GM moving in a more positive direction giving it the much needed grunt that it lacks by boosting it an additional 50 hp in the 2005 model year.

Z-man

Um, actually, there is such a rule:
Last I checked, street racing is violative of several traffic laws.

Technically, this is John D's forum - it is NOT a public forum, even though it is viewable by the public.

Sorry if my pointing the finger is getting old for you and others, but frankly, street racing stories are getting old for me. So, if people stop posting stories of street racing, they will stop hearing from me.

Honestly, I try to avoid street racing threads. I really thought this was a post about a 968 vs. a 944S2 Firestone Firehawk racer. My mistake. But while I was here, I figured I could post my opinion. Last I checked, I'm allowed to do so, since stating my opinion is NOT illegal, like street racing is.

Last time I checked, my 'bitching' about street racing stories never killed anyone. Can't say the same for street racing.

-Z-man.

89magic98

The earliest Firehawks (1992) were the most interesting (as compared to stock). They were probably more "custom" than the later ones.

http://autoblog.com/entry/1234000310031985/
http://www.firebirdgallery.com/hawklot1.htm