Tire inflation question

TheUberMonkey · March 8th, 2011, 11:52 AM

I have Nitto 555 275/35/19's and run them at 36 psi for DD use. They are the regular 555's and not the R compounds.

What is the lowest psi I should run them at the strip? Should I leave the fronts at 36 psi on the drag strip as well?

egfconnor · March 8th, 2011, 07:23 PM

I've got 275s in the rear, and 245s in the front, both 555's and you don't wanna touch the fronts. If anything you'd wanna air the fronts up so you get less friction since less tire will touch the ground but i'd just leave them the same. I've tried dropping to 20psi in the rear and honestly can't tell if it helped or not on these tires, my track sucks though for traction so its not much to compare to. I'd say you won't ever get traction with them on your 2011 though!

HMERacing · March 8th, 2011, 09:42 PM

You need to make your first run at the regular pressure. You can make adjustments from there. Remember the more pressure means less resistance! So if you can launch with no traction issues at 36 lbs you may run slower with less pressure.

March 8th, 2011, 11:52 AM	#1
TheUberMonkey Regular 2011 Mustang GT Join Date: Sep 2010 Location: NJ Posts: 80 iTrader: 0 reviews	Tire inflation question I have Nitto 555 275/35/19's and run them at 36 psi for DD use. They are the regular 555's and not the R compounds. What is the lowest psi I should run them at the strip? Should I leave the fronts at 36 psi on the drag strip as well? __________________ 3.73's, Manual transmission, Ford Track Pack rims with Nitto 555's, American Thunder Flowmaster exhaust, K&N drop in replacement air filter, Ford Racing Tune, Eibach Pro Kit, Roush grille. "I'd have to say it's worth at least two in the bush." Last edited by TheUberMonkey; March 8th, 2011 at 11:53 AM. Reason: Typo

March 8th, 2011, 07:23 PM	#2
egfconnor Enthusiast 1999 Mustang GT 14.2@98 Join Date: Jul 2010 Location: Moorhead, MN Posts: 582 iTrader: 2 reviews	I've got 275s in the rear, and 245s in the front, both 555's and you don't wanna touch the fronts. If anything you'd wanna air the fronts up so you get less friction since less tire will touch the ground but i'd just leave them the same. I've tried dropping to 20psi in the rear and honestly can't tell if it helped or not on these tires, my track sucks though for traction so its not much to compare to. I'd say you won't ever get traction with them on your 2011 though! __________________ Nitto NT-555's, AR 17x9 Shelby Razors, K&N FIPK intake, BBK Gripp 1.5" drop, Magnaflow catback, FRPP 3.73 Gears and Bama tune WTB MGW shifter, PM me. Selling 3.27 stock gears too!

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