Shifting heavy S/St car on Stop.....

cujo3116 · 05-25-2011, 11:23 PM

I'm looking to see if anyone else has suggestions or comments on shifting a super street car on time. I have a friend I'm helping with his combo and its being inconsistant on the stop, he cant confirm 100% but believes its climbing rpm on stop.

Cruisn RPM is at 4400 right now with a 1.72 60 foot. to go 10.90 in about 2400 DA hes on the stopat .050 and runs it for 2.5 seconds and goes 10.90ish at 138 mph. (7.20 104 in the 1/8th)

If i set the rpm lower though I know it will be to much and when he switchs to 1/8th mile (the super street series we run also stops at a 1/8th mile track) and I worry in the thick summer air his stop time will be less then his 60 foot and we wont be able to get any good 60 foot numbers.

SO I'm thinking of shifting on time about 1 second into the pass to help keep the rpm from climbing but I wasnt sure how successful this would be with a 2980 lbs car?

Thanks,

Andrew

05-25-2011, 11:23 PM	#1
cujo3116 Junior Member Join Date: Nov 2004 Location: Canada Posts: 53 Likes: 0 Liked 0 Times in 0 Posts	Shifting heavy S/St car on Stop..... I'm looking to see if anyone else has suggestions or comments on shifting a super street car on time. I have a friend I'm helping with his combo and its being inconsistant on the stop, he cant confirm 100% but believes its climbing rpm on stop. Cruisn RPM is at 4400 right now with a 1.72 60 foot. to go 10.90 in about 2400 DA hes on the stopat .050 and runs it for 2.5 seconds and goes 10.90ish at 138 mph. (7.20 104 in the 1/8th) If i set the rpm lower though I know it will be to much and when he switchs to 1/8th mile (the super street series we run also stops at a 1/8th mile track) and I worry in the thick summer air his stop time will be less then his 60 foot and we wont be able to get any good 60 foot numbers. SO I'm thinking of shifting on time about 1 second into the pass to help keep the rpm from climbing but I wasnt sure how successful this would be with a 2980 lbs car? Thanks, Andrew