First time at the track
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Joined: Oct 2006
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From: Harvester Mo.
First time at the track I'm taking my car to the track next week for the first time with the set up in my sig. My questions are, how much air pressure in the tires (MT et street radials 275-40-17), how many rpm's do I leave at, and do I do a burn out in 1st or 2nd gear? I took it to the track when it was bone stock and my best was 13.5 @ 104. with a 2.20 60ft. I couldn't get out of the hole at all. Now that should be solved. What times can I expect now? I'm guessing around 12.5, what do you all think?
thanks
thanks
Teching In
Joined: Mar 2009
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for tire pressure start at 20psi then you can work down to 18 or 15psi. The M/Ts are sticky but you really have to heat them up. Drive around the water box (if you have street tires in the front they will hold water in the threads) then back into it so your rear tires are in the water. Chirp the tires real quick in the water so the whole tire will get wet. Pull out of the water box and do a heel to toe burnout (unless you have a line lock) Dump the clutch in second gear at around 4 or 5000rpm and hold the burnout for a 10-20 seconds then get off the brake and keep spinning towards the line (you dont want to stop your burnout in the same place you started because the tires are gunna be sticky and will pick up all the **** and rubber you just burnt off) Now for the launch if you have the stock 10 bolt if you dump the clutch at 5k and the tires are sticky odds are its not gunna end well. If i were you i would try slipping the clutch out at around 3000 rpm and if that dont work try different rps.
Launching!
Joined: Jun 2007
Posts: 257
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From: Garland,tx
for tire pressure start at 20psi then you can work down to 18 or 15psi. The M/Ts are sticky but you really have to heat them up. Drive around the water box (if you have street tires in the front they will hold water in the threads) then back into it so your rear tires are in the water. Chirp the tires real quick in the water so the whole tire will get wet. Pull out of the water box and do a heel to toe burnout (unless you have a line lock) Dump the clutch in second gear at around 4 or 5000rpm and hold the burnout for a 10-20 seconds then get off the brake and keep spinning towards the line (you dont want to stop your burnout in the same place you started because the tires are gunna be sticky and will pick up all the **** and rubber you just burnt off) Now for the launch if you have the stock 10 bolt if you dump the clutch at 5k and the tires are sticky odds are its not gunna end well. If i were you i would try slipping the clutch out at around 3000 rpm and if that dont work try different rps.
edit:
I didn't see that you went 13.5 before your sig. I thought all you changed was the tires.
That being said, I would think mid 12s is attainable with a 1.7ish 60. If not a little quicker.
I didn't see that you went 13.5 before your sig. I thought all you changed was the tires.
That being said, I would think mid 12s is attainable with a 1.7ish 60. If not a little quicker.
Last edited by b00sted; Jul 25, 2009 at 11:30 AM.
for tire pressure start at 20psi then you can work down to 18 or 15psi. The M/Ts are sticky but you really have to heat them up. Drive around the water box (if you have street tires in the front they will hold water in the threads) then back into it so your rear tires are in the water. Chirp the tires real quick in the water so the whole tire will get wet. Pull out of the water box and do a heel to toe burnout (unless you have a line lock) Dump the clutch in second gear at around 4 or 5000rpm and hold the burnout for a 10-20 seconds then get off the brake and keep spinning towards the line (you dont want to stop your burnout in the same place you started because the tires are gunna be sticky and will pick up all the **** and rubber you just burnt off) Now for the launch if you have the stock 10 bolt if you dump the clutch at 5k and the tires are sticky odds are its not gunna end well. If i were you i would try slipping the clutch out at around 3000 rpm and if that dont work try different rps.
Thread Starter
TECH Regular
Joined: Oct 2006
Posts: 404
Likes: 1
From: Harvester Mo.
for tire pressure start at 20psi then you can work down to 18 or 15psi. The M/Ts are sticky but you really have to heat them up. Drive around the water box (if you have street tires in the front they will hold water in the threads) then back into it so your rear tires are in the water. Chirp the tires real quick in the water so the whole tire will get wet. Pull out of the water box and do a heel to toe burnout (unless you have a line lock) Dump the clutch in second gear at around 4 or 5000rpm and hold the burnout for a 10-20 seconds then get off the brake and keep spinning towards the line (you dont want to stop your burnout in the same place you started because the tires are gunna be sticky and will pick up all the **** and rubber you just burnt off) Now for the launch if you have the stock 10 bolt if you dump the clutch at 5k and the tires are sticky odds are its not gunna end well. If i were you i would try slipping the clutch out at around 3000 rpm and if that dont work try different rps.
Thanks
Trending Topics
When My car was stockish with 3.42's (12 bolt), it was making 326 rwhp and on a M/T 255/40-16 (me thinks) it bogged no matter how high of an RPM of the launch, that was with a good line lock burn out.
I had 4.10's swapped in and the car went from night to day. It made a great deal of difference.
Has the car been dynoed?
I had 4.10's swapped in and the car went from night to day. It made a great deal of difference.
Has the car been dynoed?
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Verdad Gallardo Thread Starter
TECH Regular
Joined: Oct 2006
Posts: 404
Likes: 1
From: Harvester Mo.
When My car was stockish with 3.42's (12 bolt), it was making 326 rwhp and on a M/T 255/40-16 (me thinks) it bogged no matter how high of an RPM of the launch, that was with a good line lock burn out.
I had 4.10's swapped in and the car went from night to day. It made a great deal of difference.
Has the car been dynoed?
I had 4.10's swapped in and the car went from night to day. It made a great deal of difference.
Has the car been dynoed?
Thanks
NP, you just want as much air as you can get into it w/o having issues of spinning. The more air = better mph down the back half. With a M6 car, a Line lock was required and when I had my LT1 383, my car needed A LOT of water so it could get the tires going.
