drag

[yamaharider103]

when doing a 4 wheel drive launch does every one stay in 4 until the race is done. or do you drop it back into 2hi after the launch

[720Deere]

You are going to get different responses on this one but if I can remember in the heat of the moment I kick it back to 2wd as soon as the second gear shift is complete. Most people like to believe that it won't disengage until you let off the throttle at the end of the track but I've seen different results. One of our members here has a video of his truck practically going sideways on the track when he kicked it out too soon and lost traction on the 3rd gear shift.

Go ahead and disengage it. Every truck is different but in the event that it does disengage it may help you a little on the top end by eliminating any driveline wind up that may be robbing you of hp where you really need it. If it doesn't disengage you haven't lost anything and it won't hurt anything either.

[strokin_early_99]

put in into 4high when you go around the water box so you can tell(feel) that it is in 4WD. Shift it out at the end of the track.


But, I am new to the whole diesel thing, don't listen to me.

[rankroddin250]

personaly kicking it out of 4 wheel when your hard in the throtle is asking to greande the transfer case. Id leave it in 4 wheel all the way down the track. just my 2 cents.

[red73psd]

haha uhh the guy with a pic in his avatar of him blowing a straitline stream of smoke 20 feet outa his truck with trailer hooked to it. well he doesnt know anything as you can see from his avatar he is a newbie to the diesel world