I Just GOT 17 inch wheels and i dont know what to set my PSI at

the tires are 205/45/17zr

They are Kumhos Super 712's

right now all four are at 34.5 PSI

 

if you read the tires, it should have a recommended PSI amount right on them.

 

i set my 205/45/17s at 32

 

isnt it have to be like 34 and 38? something like that not 34 all around

 

it's all different from tires to tires.

take a good reading when the tires are cool(ie: in the morning)

 

the maximum tire pressure listed on the tire is NOT the tire pressure you should use... it's simply the maximum the tire can take. you should still keep the tires closer to the pressure listed on the doorjamb of the car. most ppl keep the tires around 33-35 psi (pressure taken while tire is cool).

 

again, it depends on tires..33-35 imho is too low for me, gas mileage decline, etc

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HondaGus &raquo;</TD></TR><TR><TD CLASS="quote">I Just GOT 17 inch wheels and i dont know what to set my PSI at

the tires are 205/45/17zr

They are Kumhos Super 712's

right now all four are at 34.5 PSI</TD></TR></TABLE>
you're right on.. that's what you should be running..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by philadd &raquo;</TD></TR><TR><TD CLASS="quote">the maximum tire pressure listed on the tire is NOT the tire pressure you should use... it's simply the maximum the tire can take. you should still keep the tires closer to the pressure listed on the doorjamb of the car. most ppl keep the tires around 33-35 psi (pressure taken while tire is cool).</TD></TR></TABLE>

The doorjam psi i would think would only be correct on oem tires and wheels not aftermarket sizes. I usually stay around 4 psi below max psi listed on the tire. (Of course all measured when the tire is cold) Go on tirerack.com and read on the articles on tire inflation. It will explain to you how the max psi printed on the tire should be followed and how it helps keep the tire's traction working well in all conditions.

 

i've tried using the recommended pressure listed on the tire before, and the center of the tread wore out a lot faster than the outside edges. since then i've kept my tires around 36 and have had even wear.

some tires have a listed max pressure of around 60psi... i couldn't imagine driving around rough streets w/ that much pressure, much less driving over a pothole...

 

Here are a couple links to tirerack

Tire pressure vs. wet performance
http://www.tirerack.com/tires/...f.jsp

Tire pressure vs. dry performance
http://www.tirerack.com/tires/...f.jsp

If you guys read, you guys will find out that an underinflated tire under the manufacturers recommendations will cause some problems. Just my $.02

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spankey167 &raquo;</TD></TR><TR><TD CLASS="quote">If you guys read, you guys will find out that an underinflated tire under the manufacturers recommendations will cause some problems. Just my $.02 </TD></TR></TABLE>

If I read them right... it said to inflate your tires to the specs listed in the owner's manual of the car. I see no where on the site that says you should use the pressure listed on the tire.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by philadd &raquo;</TD></TR><TR><TD CLASS="quote">

If I read them right... it said to inflate your tires to the specs listed in the owner's manual of the car. I see no where on the site that says you should use the pressure listed on the tire.</TD></TR></TABLE>


just to give you some idea, 35 psi is cool for stock size tire, but if you running 18 or something else, you'll need to pump in accordingly.
put 35 psi in 60psi(max) tires would do anygood.
just incase you wonder, there's no 60psi max tire, there are.
they would even roll with 35psi

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by philadd &raquo;</TD></TR><TR><TD CLASS="quote">

If I read them right... it said to inflate your tires to the specs listed in the owner's manual of the car. I see no where on the site that says you should use the pressure listed on the tire.</TD></TR></TABLE>

I just had a chance to check on the side of my door jam... Next to where it says 29 PSI for tire pressure is the recommended tire size which were labeled 185/60/14... I would never run that low on my 205/50/16 just because i wouldn't want to sacrifice handling and sidewall stability and especially gas mileage Cali gas prices suck!