Here’s some info I found about running in OD while Drag Racing.
11-27-2006, 09:12 PM
#41
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Originally Posted by L36Camaro
I’ll launch it in D and bump it into OD after the 1-2 shift at the Drag Strip.
what would be the difference in launching from od and launching from 3?
11-27-2006, 09:41 PM
#44
Originally Posted by BlackHawk T/A
I'm willing to bet you can't get your shift points any closer yourself. You can try though 
The problem is, it won't shift right when you tell it to.
The problem is, it won't shift right when you tell it to.
11-27-2006, 10:02 PM
#45
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Originally Posted by performabuilt
you can note thats its on in this link,
www.performabuiltautomatics.com/dthird.html
and you can note in this one below that it does not come on during the 2-3 shift in the OD position
www.performabuiltautomatics.com/odthird.html
just a little information .
www.performabuiltautomatics.com/dthird.html
and you can note in this one below that it does not come on during the 2-3 shift in the OD position
www.performabuiltautomatics.com/odthird.html
just a little information .
j/k 
11-28-2006, 07:16 AM
#48
Originally Posted by Raise
but if you will be bumping it back up to od anyway, why start in 3 just for the launch? wont u be starting in first gear either way?
what would be the difference in launching from od and launching from 3?
what would be the difference in launching from od and launching from 3?
Last edited by FLT; 11-28-2006 at 09:48 AM.
11-28-2006, 07:33 PM
#51
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I'm staying in OD 100% of the time. With a tune you can get it to do exactly what you want as far as lockup and shift points go.
Plus my car doesn't like to kickdown from 3-2.
Plus my car doesn't like to kickdown from 3-2.
11-30-2006, 10:37 AM
#52
Originally Posted by The Elimi8tor Z28
I hear it’s better to drag race the car in OD, because in D the over run clutch is on and it decreases the line pressure in the 2-3 shift point, and in time they say it may contribute to 3-4 clutch failure.
Example:
So is this true???
I’m thinking I should run my car in OD in all conditions. Because in Pontiacs it goes (1, 2, 3, D), so OD in Camaro’s is really “Drive“.
I don’t think it will hurt anything running my car in OD all the time.
What do you guys think about all this???
Example:
So is this true???
I’m thinking I should run my car in OD in all conditions. Because in Pontiacs it goes (1, 2, 3, D), so OD in Camaro’s is really “Drive“.
I don’t think it will hurt anything running my car in OD all the time.
What do you guys think about all this???
Mec
Last edited by Greaseymec; 11-30-2006 at 07:59 PM.
11-30-2006, 12:14 PM
#53
You guys are making this way too complicated. If it's gonna break, it's gonna break.
FWIW, I just drove my car 150+ miles to the track, cut 1.6x 60's ran 11.0 and turned around and drove it back, w/ a bone stock trans, in D, no OD. I always drive around town in D also.
FWIW, I just drove my car 150+ miles to the track, cut 1.6x 60's ran 11.0 and turned around and drove it back, w/ a bone stock trans, in D, no OD. I always drive around town in D also.
11-30-2006, 12:40 PM
#54
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[QUOTE=Red2000SS]2.73 gears make for a high ratio - I ran the numbers through one of the gear calculators on the web. Assuming a shift point of 6000rpm here is were each gear would top out:
1st: 55
2nd: 104
3rd: 168
4th: 240
those numbers seem realllllll high... i leave it in D every time i race and im at between 4000-5000rpm at the end of the 1/4
1st: 55
2nd: 104
3rd: 168
4th: 240
those numbers seem realllllll high... i leave it in D every time i race and im at between 4000-5000rpm at the end of the 1/4
11-30-2006, 12:49 PM
#55
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Originally Posted by BlackHawk T/A
I'm staying in OD 100% of the time. With a tune you can get it to do exactly what you want as far as lockup and shift points go.
Plus my car doesn't like to kickdown from 3-2.
Plus my car doesn't like to kickdown from 3-2.
11-30-2006, 08:20 PM
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Originally Posted by Dan
I am really confused, I have been drag racing a long time & always keep the Shifter in 3rd, So is this the (D) you are talking about? Since I have 1,2,3, D
12-01-2006, 05:09 PM
#58
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Alrighty how bout this one guys..... What happens to line pressure on this dreaded D, 2-3 shift with a vacuum modulator? All rules still apply or will line pressure in this case be different?
