Need some help with PSI on my DR's
 

I have 315/35/17 BFG DR's on heavy ass 17x11 ZR1 wheels. I went from like 25psi down to 15psi and the best 60ft I could get was 1.8x's. I was running my old setup which had 3:42's. Still though, I should have had better 60ft times.

So what is the best PSI to run them at? I have 3:90's, and twin disc clutch and LT's now.........so that should help a bit. :devil:

MT recommends starting at 20psi and adjusting from there. 20 worked for me so that's where I've stayed.