Best SRT-10 tire pressure for drag racing?

[George Murray]

Going to the drags tomorrow...anyone have advice on pressure? I was think 17-18 PSI.

TIA, George

 

[treynor]

On the stock run-flats, you'll get cupping extreme with that tire pressure. Experiment a bit, but I would guess no lower than 25 PSI.

Now if you had 18" Purners with BFG DRs, it'd be a different story...

 

[George Murray]

Thanks, Ben....I just ran stock pressure. 12.40s best, with 115 trap speed best run. A 12.54 run netted 118 trap speed.

Some of that's operator error, and some of it's a 15 - 20 MPH headwind blowing right down the track.

My 00 ACR did best of 12.15 @ 118 MPH (Bugeater drove that pass). The ACR would have definitely dipped into the 11s with a couple of more passes. 3.54 gear, aluminum flywheel, roller rockers, Belanger headers and exhaust, stock tire pressure.

We ran the cars against each other. ACR beat SRT twice; SRT beat ACR once.