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91camaro_rs
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Joined: 03 Dec 2008
Posts: 1712
Location: Fox Island, Wa
1991 Chevrolet Camaro RS
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 Posted: Tue Apr 21, 2009 9:58 pm Post subject: drag racin w/ auto tranny |
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| ok so i am going to race in Car Club Challenge this weekend and i normally race in drive and thats been workin pretty good, but the other day i was racin my friends ford focus on a really long straight road, and i put the car in 2nd instead of drive and it seemed like i got up to speed a lot quicker then i eventually shifted to drive (3rd). so is it better to race in 2nd and shift to 3rd when i need to or just stay in drive? |
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DBL_TKE
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Joined: 28 Feb 2007
Posts: 1505
Location: Aloha, OR
1991 Chevrolet Camaro Z/28
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| Posted: Tue Apr 21, 2009 10:16 pm Post subject: |
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If the transmission shifts at the optimal point by itself then just leave it in drive. My tranny doesn't, therefore I manually shift my 700r4/LB9 at about 5100 RPM. It's not exactly "good" for the transmission to do that without manual valvebodies though. If you're doing bracket racing then you need to be as consistent as possible So I'd leave it in "D" even if it shifts at 3K rpm and runs a slower ET.
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Jason_Culbertson
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Joined: 29 Jun 2008
Posts: 364
Location: Tacoma, WA
1982 Pontiac Trans Am
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| Posted: Wed Apr 22, 2009 8:20 am Post subject: |
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well my dad raced my T/A agenst my friends V6 camaro in front of my house and he did the Manuel shift with the auto and it ran a little faster then drive but not by much. i would go with Drive its probibly easyer on the tranny
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91camaro_rs
Member
Joined: 03 Dec 2008
Posts: 1712
Location: Fox Island, Wa
1991 Chevrolet Camaro RS
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| Posted: Wed Apr 22, 2009 11:29 am Post subject: |
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| DBL_TKE wrote: | | If the transmission shifts at the optimal point by itself then just leave it in drive. My tranny doesn't, therefore I manually shift my 700r4/LB9 at about 5100 RPM. It's not exactly "good" for the transmission to do that without manual valvebodies though. If you're doing bracket racing then you need to be as consistent as possible So I'd leave it in "D" even if it shifts at 3K rpm and runs a slower ET. |
yeah thats true it would be harder to shift it manually at the same time everytime and consistancy would be hard to maintain. i just gonna leave it in drive.
anyone gonna go the the car club challenge this weekend at bremerton saturday @8am? |
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