5AT ran a little faster!!
06-01-2006, 08:21 PM
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5AT ran a little faster!!
Just got back from the track and ran a new personal best!! I went from 30psi all around to 35psi, Brake launched at 2500rpm's instead of 2000rpm's, and manual mode shifted at 6750rpm's instead of 6500rpm's. Temp. was 84 degrees into a small headwind.Anyway, I'm very pleased with the way my car is running now!
Last edited by bigo109; 06-01-2006 at 08:50 PM.
06-02-2006, 06:07 AM
#5
Originally Posted by audiblemayhem
5AT traps are usually low cause 4th gear sucks, yeah but for his mods i see what you mean
Last edited by fowlman01; 06-02-2006 at 06:09 AM.
06-02-2006, 06:19 AM
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I always atleast trap 101 in my 5at, so im not sure what you are saying about our traps. i think the reflash possibly is screwing something up... maybe utec for precise tuning might be a good option.
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06-02-2006, 06:22 AM
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Originally Posted by fowlman01
good job! Seems like a lot of air the tires, but your 60's are good.
06-02-2006, 06:24 AM
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Originally Posted by fowlman01
Mine are always slow. two weeks ago I was running 13.83 to 13.88 and I never broke 97 mph and I had two 1.9 60' times. I don't give a crap about trap speeds i want to be there first. (no pulley, no headers, stock cats, spare in)
06-02-2006, 06:26 AM
#10
Originally Posted by bigo109
Yea, it took me a year of racing on the nitto's to find out they like more air at my track. I tried 20psi at first and my best in the 1/4 mile was 14.3@96mph with a 2.2 60ft. Everytime I would add 5lbs to the tires the car would go a little faster, that combined with the cats and spacer got me the 13.8@99.9mph with a 2.0 60ft. I guess the tires were bogging too much off the line with the low psi. Anyway thanks for the props man.
06-02-2006, 06:30 AM
#11
Originally Posted by bigo109
Yea, it took me a year of racing on the nitto's to find out they like more air at my track. I tried 20psi at first and my best in the 1/4 mile was 14.3@96mph with a 2.2 60ft. Everytime I would add 5lbs to the tires the car would go a little faster, that combined with the cats and spacer got me the 13.8@99.9mph with a 2.0 60ft. I guess the tires were bogging too much off the line with the low psi. Anyway thanks for the props man.
06-02-2006, 06:52 AM
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Originally Posted by fowlman01
I have tried more air and all I do is go up in smoke, but I don't have Nitto';s either. whatever works and that seems to be working for you. I have never bogged either, but have had wheel hop. I have only trapped 100 mph once out of 150+ runs in this car.
06-02-2006, 07:04 AM
#13
Originally Posted by bigo109
I think tire psi is determined by what type of tire you have and what kind of traction you're getting at your local track. If you're bogging add more air, if you're spinning use less air. I've never had wheel hop so I'm not sure about that. I could care less about trap speeds. My goal from the start was to get my 5AT in the 13's w/o nos or going FI.
06-02-2006, 09:40 AM
#14
4th gear in the 5at,s does suck.mine pulls hard as hell 1,2,3 and then with about 100 to 150 feet short of the line it fall,s on it,s face.alberto ran my car against davidv,s much lighter z and felt the same thing.im wondering if a reflash for rpm,s only would keep me in 3rd at the line.
06-02-2006, 09:53 AM
#15
Originally Posted by superchargedg
4th gear in the 5at,s does suck.mine pulls hard as hell 1,2,3 and then with about 100 to 150 feet short of the line it fall,s on it,s face.alberto ran my car against davidv,s much lighter z and felt the same thing.im wondering if a reflash for rpm,s only would keep me in 3rd at the line.
06-02-2006, 11:21 AM
#17
Originally Posted by bhk1004
hmmmmz this is making me doubt 3.5 gears are worth it.
06-02-2006, 12:41 PM
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i run 13.8z all day the track with just intake an exhaust. i mean you dont need the gears to hit 13'z. i would honestly be expecting you 2 to be in like 13.4-6 territory. if I could get a good launch i should run atleast a 13.6 the way I am right now.
06-02-2006, 01:32 PM
#19
Originally Posted by bhk1004
i run 13.8z all day the track with just intake an exhaust. i mean you dont need the gears to hit 13'z. i would honestly be expecting you 2 to be in like 13.4-6 territory. if I could get a good launch i should run atleast a 13.6 the way I am right now.