if its an auto it wont disengauge 4wd untill you let off the gas

 

Think it'll be bad news if I just keep it in 4 till the end of the track? I dont wanna let off til its over.
Been brake standing to build boost and launching in 2wd behind my job to practice and it seems ok, think that'll be ok to do if I air down or is 4wd th way to go?

 

since i have a electronic hub control i put it in 4x4 with the hubs locked, put it in 2nd with the boost around 12 then dompletly drop the clutch after i hit 5th i hit the hub control swithc that disengages the front axle. ive never done a drag on a track just around hear were the roads arnt populated enough but are still paved

 

Thank you, I have the manual 4WD shifter on the floor so I'm not sure I wanna be messing with it going down the track. The last thing I need is to grenade the T-case.

 

Thats a good ? how much psi do you leave in the rear tires when your at the strip?

 

i shift mine outta 4wd at half track you can feel yourself pick up speed

 

I usually leave around 20-25 psi. With street tires I found that around 35-38 psi in the front and 30-32 psi in the rear worked well.

 

i leave at about 30 pounds of boost in 4 high and leave it in 4 high all the way through. i tried leaving in 2wd and just blowed the tires away at 10 pounds of boost. with no boost my truck breaks lose after it rolls out about 10 or 15 ft.

 

Yeah, I usually leave the line at 30psi boost. Put about 38psi in my tires, and leave it in 4hi the whole time. My truck isn't particularly fast, but crossing the line at 103mph I haven't had any tcase issues yet. I know other people that leave the tcase in up to nearly 130 and don't have issues. Thats in a 3rd gen though.
Sean

 

I just hold the foot brake until the boost comes up
Ed