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Not that exact tire but similar. I run the 29.5x10.5 PBR which is basically the same size. Bracket racing a 3200 lb car that goes 5.80s-5.90s and 60fts 1.26-1.27 I run 16.5 psi. On a tight track trying to go fast I run 19 psi and go 5.70s and have gone 1.23 60fts. On a typical bracket prepped track it's less likely to blow the tires off with the lower pressure but is faster with the higher pressure if the track will hold it.
 

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Right at 17.5 with a 3550lb car using either 10" or 12" wheels.
 

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17 psi...Brand new 275/60R15 ET drag radials on 8" wheels with no miles.
Friday, hit the strip...Friday TNT's I'm not a fan, but was talked out of Saturday with stuff going on at Cecil (happy too since it rained)
Anywho, typical traction issues with all the street cars on all season tires I guess.
Couldn't get out of the 1.7's (best was 1.5's last outing) Lots having traction issues


Sooooooo, verdict is still out, but going 20psi next time out.
 
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