Launch Question
Thread Starter
Le Mans Master
Joined: Jun 2001
Posts: 9,117
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From: 7th Floor Crew
Launch Question
Quick question. I was looking over an article that C&D did when the GS came out, and they made a comment on launch RPM's. They said that with the 315's, the car now needed to be launched at 4000 RPM vs. 2300. My question is...how the hell do you launch these things at 4K? I get wheelspin with light feathering at 2200! Do you have to feather it that much? And if you do, how can you do it w/o frying the clutch? :chevy
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
Re: Launch Question (Hurricane_777)
With my LT1, I could launch like hell with the 285's(Michelin) when I needed to or I could smoke them up.
Now I have 315's(Dunlop SP 8000) on and I can spin them a lot easier than the 285's. Must be the difference between Michelin and Dunlop.
BTW, have I ever mentioned that the Michelin Pilot XGT Z4 is the best damn tire on the planet? :D
Now I have 315's(Dunlop SP 8000) on and I can spin them a lot easier than the 285's. Must be the difference between Michelin and Dunlop.
BTW, have I ever mentioned that the Michelin Pilot XGT Z4 is the best damn tire on the planet? :D
Pro
Joined: Jan 2001
Posts: 526
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From: Sierra Madre
Re: Launch Question (Hurricane_777)
I also read an article (or web page) awhile back about the GS.
The driver lowered the tire pressure in the rear (I think it was around 18-24 psi), rev'd it up to 5000 rpm and dropped the clutch. Did the quater-mile in 12.8, and the car was completely stock.
Don't remember all the specifics about it, but it was interesting.
Glenn
The driver lowered the tire pressure in the rear (I think it was around 18-24 psi), rev'd it up to 5000 rpm and dropped the clutch. Did the quater-mile in 12.8, and the car was completely stock.
Don't remember all the specifics about it, but it was interesting.
Glenn
Thread Starter
Le Mans Master
Joined: Jun 2001
Posts: 9,117
Likes: 0
From: 7th Floor Crew
Re: Launch Question (GM_96LT4)
The driver lowered the tire pressure in the rear (I think it was around 18-24 psi), rev'd it up to 5000 rpm and dropped the clutch. Did the quater-mile in 12.8, and the car was completely stock.
Le Mans Master
Joined: Jul 2000
Posts: 6,125
Likes: 2
From: Cincinnati, OH
Re: Launch Question (Hurricane_777)
Very interesting. I don't understand how you could dump at 5K without massive wheelspin. Can I be that unskilled? :confused:
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
Re: Launch Question (Hurricane_777)
If it was drag radials, I believe it, no way on street tires.
