When running the track would you want to be at full preasure on your tires or would it help to let a little out? 04 QC 5.7 Airaid cold air intake, Jet chip 1, Airaid throttle body spacer, Magna flow Exhaust, Royal purple oil. Runnin on 20's!!!

 

Don't deflate your tires. Run at MFR spec.

 

Those 20s are gonna make you slower, not faster. Increased diameter and weight are detractors at the track, not advantages.

 

Agreed, manufactures spec should give you the best traction, but is your traction even an issue with the torque management? Most 04 QC can't get more than a chirp even with more mods than you have.

 

take the fronts to max preasure, and drop the rear 5 if it was me.. fronts will decrease rolling resistance and the rears should dig in a bit.. I do not understand why the hemi wont roast the tires can't you temporarly disable that torque managment stuff pretty easily? My little 4.7 will spin em pretty easily..

 

IDK where you bought your truck but my 05 5.7 will roast my 20's off if I dont back it down. 100% stock.