I am waiting for my Mickey Thompson drag radials to get here, and I was just wondering what tire pressure should I start with?

 

I suggest following Mickey Thompson's guidelines: http://www.mickeythompsontires.com/tech_pressure.html


And pay special attention to this note on that link.

Note: Many racers feel that "Less is Better" with regard to air pressure. This is not always the case. While there are exceptions to every rule, we have found higher pressure generally works best with Mickey Thompson Tires. Not only do the higher pressures lead to quicker times, but they also contribute to a safer, more stable ride at the finish line.

 

Thanks Don

 

Thanks again Don, I had looked at that before but completely forgot about it. Have been running 22/24 in my M/T dr. Next time I'm out I'll drop it to 16 and see how it goes.

chris

 

I say drop it slow. When I first started running the DRs, I started at 20psi. Then I dropped it in 1psi increments, eventually settling on 17psi. That was with a short 26" tire (275/40-17) and 4.10s. When I get back to the track, I'll have 28" DRs (275/60-15) with a lot more sidewall, so I'll start at 20psi again. I wouldn't be surprised if 20psi works just fine for me.

 

i have 275/40/17 nitto 555r's...they are a 27in tire IIRC. 810 rotations per mile give or take 5, i believe?

 

275/40-17s are probably closer to 26" dia.