what tire pressure for max traction do you run with comp T/A drag radials?

 

I run 33 Lb and pull 2.0 60's at Byron with the mods in the sig.

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87 Z28 305 TPI, Auto, LT-1 cam (@.50 418/430, 194/199, LSA 111), roller timing set, 2.73, Gutted air boxes, K & N fillters, Dyno Max 3" cat back, 8.8 mm spirals, air foil, BFG Drag radials,170* Stat and TB bypass.
Old Best 15.414 @ 87.47.
new best 15.006 @ 89.55.
w/ drag radails 14.6 @ 93
“Fallen But Not Forgotten”

 

I run 24 and run 1.9's with the brakes not holding to launch (almost from idle). 30 seems a little high for the track IMO.

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1990 Formula 350
Hooker Headers, Random Technology Exhaust, K&N, Airfoil, MSD 6A Ignition, Aftermarket chip, 3.42 Gears, Metco LCA's w/ brackets, F Body Perf. Panhard Rod and Strut Tower Brace, KYB AGX shocks in the rear, 1999 Formula Wheels, White Face Guage Overlays

 

I gained about a tenth of a second going from 27 to 23 psi, but most guys run them in the 12-18 psi range. I didn't get enough runs to lower the pressure further, but I sure was happy with a 1.84 short time.

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Greg Westphal
'87 IROC 355TPI/A4

 

ok thanks a lot for the replies guys- l appreciate it, I've got comp t/a's to back up the power from my ZZ4 with 3.73's 2,500 RPM stall, and it burns em all the way through 1st and part of 2nd- l didn't think that the ZZ4 was too much motor for those tires, and l burn em at about 24-25 PSI on the street, so l just thought ld ask you guys your opinion.

thanks again