60' techniques...
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12 Second Club
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Joined: Apr 2004
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From: Clarksville, TN
60' techniques... I need some suggestions...
I'm working with stock rear, Spec stg III clutch, and street tires. These tires are nice though in that they get really tacky with a good burn-out (I tested the theory today. They didn't get all slick like my old street tires did when they got too hot, instead they got all squealy and sticky .). I ran them at 22lbs pressure...
Today's best 60' was a 2.128. That was bogging at a ~3500 slip/dump. I have been slipping until the front starts to rise and then dumping the rest of the clutch. I tried a ~4k launch with a little bit faster slip/dump (but not a side-step) and that caught me some wheelspin and a 2.203 60'
I've heard of folks getting 1.9's and even 1.8's on street tires (not Nittos)...
Any tips? How did ya'll do it on stock tires, stock rear, M6?
I'm working with stock rear, Spec stg III clutch, and street tires. These tires are nice though in that they get really tacky with a good burn-out (I tested the theory today. They didn't get all slick like my old street tires did when they got too hot, instead they got all squealy and sticky .). I ran them at 22lbs pressure...
Today's best 60' was a 2.128. That was bogging at a ~3500 slip/dump. I have been slipping until the front starts to rise and then dumping the rest of the clutch. I tried a ~4k launch with a little bit faster slip/dump (but not a side-step) and that caught me some wheelspin and a 2.203 60'
I've heard of folks getting 1.9's and even 1.8's on street tires (not Nittos)...
Any tips? How did ya'll do it on stock tires, stock rear, M6?
Launching!
Joined: Sep 2004
Posts: 265
Likes: 1
From: Norfolk, VA
I did a 2.0 with crappy 245/50/16 Eagle HP's that are dry rotting and cracked. I did a 3-3200 rpm slip fairly quickly. Of course, I have a LT1 with a cam that moves my powerband around, so your results may vary. I think that with a good 275 tire on a 17" rim i could probably have hit a 1.9 60', but I'll be going to a 275 DR on a 15" rim shortly, so i wont be able to test my theory. And I think that slipping higher could have gotten me better results.
One thing I did find was that I was able to dump the clutch amidst slip much earlier than I thought. While you may think that if you dump early, you'll spin, i found that if you dump just early enough, you'll actually hook and be able to go WOT making your 60' that much quicker. I had just over 25 passes in my car last year, and got my 60's down from a 2.3 on my first time ever launching it, to a 2.0 consistantly (either a high 2.0 or a low low 2.1) all 10 passes last time at the track.
One thing I did find was that I was able to dump the clutch amidst slip much earlier than I thought. While you may think that if you dump early, you'll spin, i found that if you dump just early enough, you'll actually hook and be able to go WOT making your 60' that much quicker. I had just over 25 passes in my car last year, and got my 60's down from a 2.3 on my first time ever launching it, to a 2.0 consistantly (either a high 2.0 or a low low 2.1) all 10 passes last time at the track.
Thread Starter
12 Second Club
iTrader: (1)
Joined: Apr 2004
Posts: 1,369
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From: Clarksville, TN
a simple problem to your solution - stock rear...
I'm getting a 12-bolt this summer, I just want to learn how to launch delicately on street tires first while I have the chance to. I think being able to do that would make me a better racer all around.
I'm getting a 12-bolt this summer, I just want to learn how to launch delicately on street tires first while I have the chance to. I think being able to do that would make me a better racer all around.
