M/T Drag Raidial PSI for the drag strip ?

[smokinzx14r]

What PSI are you guys running on your drag Radials ? On my other car I ran drag radials at 18 PSI and that worked well but they had much more side wall being 15 by 28 tall inch tire .. The 18 I'm using have very little side wall and make me wonder what PSI to try .. Thanks ...

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[Mikeiscoo2]

how have you not broken axles yet lol

 

[smokinzx14r]

how have you not broken axles yet lol

Just lucky I guess ... :shrug:

 

[Reds197]

I ran the 20's. My best 60ft was at 19 psi. I tried lower but didn't do any better.

 

[Five Oh Brian]

I run M/T ET Streets (275/60/15). They like 20 psi best. When I ran lower profile M&H Racemasters (275/45/18), 26 psi worked best for me.

Either tire benefitted from me checking to be sure the wear was across the entire width of the tread. No wear in the middle treads means they're underinflated. No wear on the outside edges means they're overinflated.

 

[Sam@Coastal]

All depends on how hard your launching the car. The harder you leave the less pressure they like. My best 60 so far was a 1.49 and that was at 17 psi cold. Honestly this chassis and the IRS reacts differently than the S197 from my experience. The harder your willing to go the better the car will react, my car leaves best between 6700-7000 depending on track condition, and that's 100% stock suspension, just with 275/40-17 drag radials and skinnies.

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