my 968 vs a Firebird Fire hawk
#16
Unaffiliated
Drivetrain losses:
Firebird= 25%
968=15%
It makes a difference!
Firebird= 25%
968=15%
It makes a difference!
#17
Race Director
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???
#18
Originally Posted by 944Fest (aka Dan P)
Drivetrain losses:
Firebird= 25%
968=15%
It makes a difference!
Firebird= 25%
968=15%
It makes a difference!
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).
#19
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.
#20
Addict
Lifetime Rennlist
Member
Lifetime Rennlist
Member
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.
#24
Rennlist Member
Originally Posted by MichelleJD
Hey Winslow......shouldn't you be out in the garage?!
#27
Unaffiliated
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!
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!
#28
Nordschleife Master
Originally Posted by Tom R.
the magazines say the gto is faster thats why i got one.
#29
Race Director
Originally Posted by Hacker-Pschorr
Until Rennlist makes a rule forbidding it - you might want to realize your views on this topic are not shared by the masses:
https://rennlist.com/forums/928-forum/192993-928-road-stories.html
https://rennlist.com/forums/928-forum/192993-928-road-stories.html
Originally Posted by From the registration agreement statement
*! NOTE !* You agree, through your use of this service, that you will not use these to post any material which is knowingly false and/or defamatory, inaccurate, abusive, vulgar, hateful, harassing, obscene, profane, sexually oriented, threatening, invasive of a person's privacy, or otherwise violative of any law.
Sorry Z - I share your views on street racing 110%, but this is a public forum, and the constant finger pointing "You shouldn't do that, don't post it anymore" is getting old.
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.
#30
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
http://autoblog.com/entry/1234000310031985/
http://www.firebirdgallery.com/hawklot1.htm