Drag Racing Tech - How do you guys race your 4l60e autos?

My gear selector in my ta has d 3 2 1 which is the best gear for drag racing? thx in advance.

I leave mine in drive for my best results.

I just leave it in D. I don't manually shift the car.

Do not shift. You won't help and often will hurt your times.

I just leave it in drive as well. I have a built trans so I couldnt shift faster than it anyways.

If you were to have amanual valve body you would have to shift but I don't know if the make a manual valve body for the 60e.

Just playing devil's advicate so no one would bring it up.

If you were to have amanual valve body you would have to shift but I don't know if the make a manual valve body for the 60e.

Just playing devil's advicate so no one would bring it up.

They make one for the 4l60e but you aint going to out shift a computer.

Same here leave it in "D".

I always shifted mine manually... never helped though... it was just something I did.

Leave it in 3 you don't want the car to shift in to overdrive it will kill your times.
Although I don't think it will shift to overdrive at WOT.

Oh it Will shift into overdrive at WOT lol, I leave it in 3.

Oh it Will shift into overdrive at WOT lol, I leave it in 3.

I thought the computer wouldn't allow a WOT shift into overdrive.

i leave it in 3 as well. or itll hit OD at the 1000ft mark for me

yeah i leave the TA in drive not 3 for all of my racing, but its funny bc i was actually wondering about this myself recently... good read.

I run a 700r4 which is a 4l60e just without the comp. I hold it in gear since my weights want it to shift at 4500 instead of 5200 where I want it to. If your shift point is tuned right then leave it in drive or 3rd

Well I have never gotten the car tuned, and it will shift into 4th with the pedal mashed to the floor somewhere around 120-125mph.

My car is tuned and the trans is built Now will it go into overdrive at wot?

OD at WOT will destroy shit if you are making good power! OD is meant for cruising and not excelerating, especialy if giving it hell.

I would think factory the car shouldn't shift in to OD at wot so I am guessing the guys with that problem have custom tunes and had that changed.(not sure why)

OD at WOT will destroy shit if you are making good power! OD is meant for cruising and not excelerating, especialy if giving it hell.

I would think factory the car shouldn't shift in to OD at wot so I am guessing the guys with that problem have custom tunes and had that changed.(not sure why)

If your tranny is built for it, you can go wot into 4th ! I personaly asked Mr. Rossler this myself when talking about my new tranny that I will be putting in shortly. Even the "Ohio Boys" did a couple times at thr strip because they ran out of gear.

How is a factory car, being able to shift into 4th at wot a problem ? You think when Car and Driver test an auto car they let of the gas and let it shift into 4th at 3/4 throttle or something, sorry, not a chance.

+1 for "3" not "d"

I leave mine in 3rd because I set it up to top out going thru the traps. If I had to go into 4th (OD) I would probably lift because of the power I'm making now. But I did shift into 4th @ WOT with my 400rwhp cam only motor several times with no issues.

I do my burnout in second and race in 3rd. But I have a lazy ass tranny that takes what seems like half a second to shift. :(

Manually shifting auto = M6 envy.

I manually shift mine...

I'm curious about trying this! But I don't get it, what's the purpose of having a "built" tranny that's supposed to shift at maximum performance if racing it in 3rd gear is better? I just want more info or experiences on this since I'm prepping my h/c/nitrous setup for drag racing. This thread was a good read for me.

I used to leave mine in 3rd but every now and then it would whack the rev limiter on the 2-3 shift when going down the track. A member here told me about trying it in OD, and the problem hasn't happened in 7 years since then. Granted my car is only slightly modified, but just sharing my results.

BTW, my car did shift into overdrive at WOT on a high speed "check out" run when I first got it (bone stock with about 12,000 miles on it).

Derek

I race mine in D not 3.....

I used to leave mine in 3rd but every now and then it would whack the rev limiter on the 2-3 shift when going down the track. A member here told me about trying it in OD, and the problem hasn't happened in 7 years since then. Granted my car is only slightly modified, but just sharing my results.

BTW, my car did shift into overdrive at WOT on a high speed "check out" run when I first got it (bone stock with about 12,000 miles on it).

Derek

When you leave it in "D" the overruns will apply on the 2-3 shift. So you have another clutch coming on along with the 3-4's. This will take apply oil away from the 3-4 clutch pack, and send it to the overruns. Which is not the best thing. If you leave it in "OD" the overrun clutches don't apply, so no apply oil is going elsewhere, giving you the best WOT 2-3 shift.

When you leave it in "D" the overruns will apply on the 2-3 shift. So you have another clutch coming on along with the 3-4's. This will take apply oil away from the 3-4 clutch pack, and send it to the overruns. Which is not the best thing. If you leave it in "OD" the overrun clutches don't apply, so no apply oil is going elsewhere, giving you the best WOT 2-3 shift.

WOW!!! Thank you!!! That could probably explain why I would bounce off the rev limiter on my 2-3 shift everytime going down the track in 3rd. I will have to try it in OD and see if there is a difference. :chug:

I used to leave mine in 3rd but every now and then it would whack the rev limiter on the 2-3 shift when going down the track. A member here told me about trying it in OD, and the problem hasn't happened in 7 years since then.

^^Exactly what happens for me as well.

When you leave it in "D" the overruns will apply on the 2-3 shift. So you have another clutch coming on along with the 3-4's. This will take apply oil away from the 3-4 clutch pack, and send it to the overruns. Which is not the best thing. If you leave it in "OD" the overrun clutches don't apply, so no apply oil is going elsewhere, giving you the best WOT 2-3 shift.

^Very interesting information. Nice addition!

When you leave it in "D" the overruns will apply on the 2-3 shift. So you have another clutch coming on along with the 3-4's. This will take apply oil away from the 3-4 clutch pack, and send it to the overruns. Which is not the best thing. If you leave it in "OD" the overrun clutches don't apply, so no apply oil is going elsewhere, giving you the best WOT 2-3 shift.

Does this also apply to a 4L60E rebuilt done with a with a TCI Master Racing rebuild kit and TransGo HD2? ..I always have left in 3 and not OD @ the track..The car shifts great with no complaints!

Yes, when racing in the qtr mile its best to gear your car so you run the end of the track in your 1:1 gear, I only mentioned being able to to shift into 4th at WOT because a couple members thought you couldn't, the reason you would want to. . . . . . . . . Highway runs and standing mile events.

When you leave it in "D" the overruns will apply on the 2-3 shift. So you have another clutch coming on along with the 3-4's. This will take apply oil away from the 3-4 clutch pack, and send it to the overruns. Which is not the best thing. If you leave it in "OD" the overrun clutches don't apply, so no apply oil is going elsewhere, giving you the best WOT 2-3 shift.

Good to know, thanks for posting the info!

Derek

+1 for "3" not "d"
+2...

Back when my 4l60e car was stock, it ran it's fastest pass of 13.28 leaving it in regular Drive/OD. I tried manually shifting it a few times and could never go faster than 13.36

Leave it in Drive and let it do its thing.

4l60e is computer controlled weather you shift manually or leave it in drive. when you roll race you should manually down shift it so the clutches are fully engaged and not trying to engage under power. When i race from a dig, track or street, i put it in first so if i spin and ease off the throttle it doesn't shift into the next gear early, as it would if you were in drive. if you shift early it will give the computer time to react and wont hit the rev limiter.

i left mine in 3rd once, then D. no difference in times

I leave mine in 3. Heard about the extra "something" engaged when you leave it like that. I forget all the details. Probably the same thing that was typed a few posts above.