I have a boneyard 4L80e with an HD2 kit and Ive searched but can't seem to find a real answer. At the local track (1/8th mile so no 4th needed). Do I put the shifter in "D" or "OD"? Does it matter? As far as burnouts go start in 1st to break em loose then shift up to 2nd at low throttle/wheel speed seems to be the general consensus? I just bought some super sticky Hoosiers and don't want to wad the sprag up doing a burnout


Yes I know there is similar thread about 4L60s

 

I hold second for a quick burnout to about 5k RPM's and run down the track in D, extremely consistent.

 

I let my shift into 3rd during a burnout. The. 80 likes to break sprags when a sticky tire hooks in second. Also I leave with the shifter in 1st. I believe it's the overruns that apply when in manual 1.

 

I thought its when it does a 3-2 downshift and grabs with sticky tires?

 

I can't honestly speak from experience, but everyone over on performance trucks swears by 3rd gear burn outs because of the sprag.

 

yup.... 3rd gear itself is fine for a burnout... the problem with 3rd gear burnouts is if the computer commands a 3-2 downshift while the tires are still spinning and slowing down and gripping when you let off. this is what jake has said in the past.