Tire psi?

Cesar2cool · January 19th, 2008, 01:57 AM

does the tire psi really make that much of a difference?
my PSI is kinda off by like 3 psi on my right tire, Just wanted 2 know so i can run at my optimum level

SWEET2KSTANG · January 19th, 2008, 07:01 AM

it all sepends on some factors. size, tire type, what you are doing with it, etc. street tires are made to run at a warm temp, too hot and they become oily and slick. contact patch needs to be optimum, too low psi there will be cupping isues, too high psi and the contact patch wont be even all the way across. there are a lot more factors, but this is a start.

Cesar2cool · January 21st, 2008, 01:47 PM

18" Nd i have SUMITOMO Tires 275 ZR, whats the optimum psi..4 the best traction and optimum performance

Trick Tuners · January 21st, 2008, 02:00 PM

Read the tire. I usually go for about 5psi less than max for regular driving. Dropping a some psi can help the tire hook a little better, but will be more squirmy in the corners.

stroker408 · January 21st, 2008, 02:04 PM

on highway i put all mine all at 32 when i get home i put my rear nittos down to 22

SWEET2KSTANG · January 21st, 2008, 03:45 PM

i run 27psi in my rear tires all the time. i dont really have any stability issues.

MustangMatt96GT · January 21st, 2008, 03:47 PM

I drove home once on the slicks at 14 PSI. That was fun!

Doc8224 · January 21st, 2008, 04:40 PM

27-32 is what I shoot for on mine. usualy all of em are at 28-29. You don't want a 5psi or more difference between tires. put em all the same. Tire pressure directly affects fuel mileage,tire wear,grip,and stability.

Montanasvt · January 21st, 2008, 06:15 PM

i have always ran 35 in all my vehicles...

Cesar2cool · January 22nd, 2008, 12:51 PM

35 Sounds Nice, i dont really want to have too much wear and tear on my tires, they were freaking 260 bucks each..Ouch..=( lol

January 19th, 2008, 07:01 AM	#2
SWEET2KSTANG mm's nitrous mod 2000 mustang gt 11.79@115.83 (old set up) Join Date: Oct 2006 Location: N.W. AR Posts: 12,540 iTrader: 8 reviews	it all sepends on some factors. size, tire type, what you are doing with it, etc. street tires are made to run at a warm temp, too hot and they become oily and slick. contact patch needs to be optimum, too low psi there will be cupping isues, too high psi and the contact patch wont be even all the way across. there are a lot more factors, but this is a start. __________________ project warhorse under construction wagon burner under construction as well (04 lightning) being built by MP2 Performance

January 21st, 2008, 02:00 PM	#4
Trick Tuners MM Fanatic KB'd GT Join Date: Nov 2006 Location: San Diego Posts: 4,467 iTrader: 3 reviews	Read the tire. I usually go for about 5psi less than max for regular driving. Dropping a some psi can help the tire hook a little better, but will be more squirmy in the corners. __________________ Check out my forums for stuff on troubleshooting, tuning, etc We teamed up with Socal Performance Racing to bring dyno tuning to San Diego. Be friends with us on FB

January 21st, 2008, 03:45 PM	#6
SWEET2KSTANG mm's nitrous mod 2000 mustang gt 11.79@115.83 (old set up) Join Date: Oct 2006 Location: N.W. AR Posts: 12,540 iTrader: 8 reviews	i run 27psi in my rear tires all the time. i dont really have any stability issues. __________________ project warhorse under construction wagon burner under construction as well (04 lightning) being built by MP2 Performance

January 21st, 2008, 03:47 PM	#7
MustangMatt96GT Proud American 1996 Mustang GT Join Date: Dec 2006 Location: Lakewood, CO Posts: 10,690 iTrader: 3 reviews	I drove home once on the slicks at 14 PSI. That was fun! __________________ RIP Travis Billings Special Thanks to: Andrews Racing Transmissions Baseline Suspensions 25.3 SFI Chassis Build Never Lift Racecars

January 21st, 2008, 04:40 PM	#8
Doc8224 N/A 4v Guru 2003 Mach 1 Join Date: Oct 2007 Location: Afghanistan Posts: 3,463 Blog Entries: 2 iTrader: 1 reviews	27-32 is what I shoot for on mine. usualy all of em are at 28-29. You don't want a 5psi or more difference between tires. put em all the same. Tire pressure directly affects fuel mileage,tire wear,grip,and stability. __________________ Military Crew U.S. Army Aviation Apache's Lead The Way

January 21st, 2008, 02:04 PM	#5
stroker408 Regular Join Date: Feb 2006 Posts: 200 iTrader: 0 reviews	on highway i put all mine all at 32 when i get home i put my rear nittos down to 22

January 21st, 2008, 06:15 PM	#9
Montanasvt Regular 03 10th Ani Cobra Vert 12.20@115 Join Date: Oct 2007 Location: Macon, Ga Posts: 409 iTrader: 0 reviews	i have always ran 35 in all my vehicles... __________________

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