ive got a 93 z28 with lt's, ory, 24" dynomax, 1.65 rr's , and pcmforless chip, k&n cai, trickflow elbow, everything else is stock untouched 700r4 and stock rear end . im running 255/50/16 MT ET streets with about 10 pounds of presure i try to leave at about 2 grand and still spin 30 ft and that burning them a lil then settin back up in my sticky . am i doin something wrong of are these not the great tires i was told they were

 

Did you try adjusting your air pressure to maybe 15? Also if you don't have any suspension mods the tires wont do it all you need some good control arms and a torque arm and you'll see a big difference

 

Tire pressure is to low for one try around 15-18psi and see if that helps any

 

16 psi ....leave at about 200 rpms above idle and floor it.

 

as said already suspension will make a big difference control arms and a torque arm really helps you can also lose the front sway bar that will help get the weight off the front during hard launches

 

You're running drag radials, not full slicks. 10psi is dangerously low. Start at 19psi and drop in 1/2 pound increments until you dead hook.

 

get some LCAs, remove your front sway bar, and do what Joe said for the tire pressure. i run more than 10lbs in my QTPs...

 

Lower control arms will do nothing. These guys are right on the tire pressure and front sway bar. At ten PSI the tire is probably cupped on launch. I would suggest putting air bags in the rear coils. Competition Engineering rear shocks and an air bag in the passenger rear spring would be one level up from that.

 

If you dont do a burnout before you launch your gonna spin. Stock suspension and good tires and burnout will go along way

 

this is a great setup, i ran this for a long time. ide say do this and if that doesnt fix ur traction problems i would invest in some strange shocks upfront. that would really get the weight on the rear tires.