Frametwista

iTrader: (1)

I have a pretty well built 4l60e i was just wondering are you suppose to leave it in d or put it in 3 when drag racing?Thx in advance

86zcamaro

iTrader: (8)

keep it in D, its going to run how its supposed to that way and should be a little quicker than if you tried just going with it as 3rd being the highest.

You should also see slightly slower times trying to manually shift it, I did it to see on my stock car.

1989GTA

Drive for me.

allbaugh_04

iTrader: (6)

Drive

Frametwista

iTrader: (1)

ok so d is actually the overdrive right my gear selector has d 3 2 1.I made 3 passes 2 were in d and i trapped 123 and the last one was in 3 and it only trapped 119 so you guys just confirmed what i believed which is to keep it in d

wm2002Z28

iTrader: (2)

Below 30 mph I hit from 1st and slam it str8 to the big d and anything over that I just leave it in the overdrive d

TXZ28LS1

iTrader: (5)

i keep my car is OD for everything. but i hear its better to be in OD for daily driving, and when your race put it in D or 3 for the TA guys.

Frametwista

iTrader: (1)

So trans am and camaro automatic gear selectors are different? like i stated before mine says d 3 2 1.Is my d 4th gear which is overdrive right?

NHRAFORMULA00

iTrader: (2)

Had this problem earlier in the spring with my sons car.Went to the track and it kept hitting the rev limiter from first to second.Took it back to Speedink had the shift points lowered to shift earlier,went back to the track and it still was shifting too late hitting the limiter.Called Larry at Speed and he asked if we had it in drive or od.Long story cut short!!!!! If its tuned in od,then race in od,If its tuned in 3,then race in 3.It needs to be in the gear that it was tuned on the dyno,or its not going to shift correctly.

projectX

iTrader: (51)

Race in D

Badazz 97 TA

iTrader: (18)

I believe Trans-Ams had PRND321 and camaros have PRNODD21.


Its the same thing just lettered different

Predator T/A

iTrader: (7)

its better to race in D because the low reverse clutches come on along with the low roller clutch and help support the load instead of the weak low roller taking the load, also the overrun clutches come on in the input drum to help support the forward sprag. in OD range these clutches do not come on. basically you have more holding power in manual ranges. with the exception of 2nd the ovverun clutches will go off and then come back on in 3rd

Caribe

iTrader: (1)

Trans Am: Launch with 3rd then bump it to D right away.

BadCompany VP WS6

iTrader: (6)

I put mine in R for race.

thunderstruck507

iTrader: (18)

can anyone else comment on this? is this a concern with moderate power cars or more with high power cars?

Frametwista

iTrader: (1)

If i leave it in d will it shift to overdrive at wot?

Predator T/A

iTrader: (7)

no.....

Predator T/A

iTrader: (7)

with any car the more support you give the low roller and the forward sprag the stronger it is in fist gear OD range the forward clutches are applied as well as the forward sprag holding and the low roller clutch holding. in manual range 1st the overrun clutches come on which do the same thing as the forward sprag and the low reverse clutches come on which will do the same thing as the low roller. for instance ever here of someone breaking a sprag but they were able to manual shift it home? this is the reason because these clutches were coming on and doing the same job as the broken part.

superman2002

If you want to keep third gear keep it out of od. Manual shift is better on the trans and short shift to 2nd at 5500 no more or you will put bleed by preasure on third.