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2nd_to_none 04-20-2007 03:47 PM

drag racing tomorrow
Well im racing in the morning and have everything tuned and ready to go BUT i dont know how low to go with the tire pressure.... i have 215-45-17s and i want to bring the tire pressure down so i can launch better. i have them set at 40 psi now but i was thinking about bringing them way down to like 15-20 psi, just the front thou leave the rear hard.. what is your opinion?

Duffman355 04-20-2007 04:31 PM

that would probably work.

Buickboy 04-20-2007 04:42 PM

Try dropping it and do a run, couldnt hurt. Hope you get enough runs to play with launching/ tire pressure combos. let us know how it goes [thumb]

dirtbrown 04-20-2007 04:45 PM

thats too low....
id say ur at 40 which is already pretty high...
bring it down to 25 and ur cool...
that should get u off the line alot better
and create less drag down the track

Busted_00_ZX3 04-20-2007 06:33 PM

20-25psi agreed ^^^^

Then try 16-18 and compare your 60 against 20-25 range.
You never want to start that low you want to work your way that low until you find the right pressure. Goodluck.

2nd_to_none 04-22-2007 06:36 PM

well i started at 25 psi couldnt get that good of grip so i went to 20 psi and ran some 16.0 (which is bad) and still couldnt grip so well..... i thought about going to 15 cuz some other guys did and it worked well for them but i didnt... i need to drop that puppy a little bit cuz i just couldnt get any bite. i tried launching at 3k rpms 2k, and no reving and still would spin so back to square 1

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