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Old 06-16-2012, 07:57 PM   #1
ajara84
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Default Recommended Tire Pressure?

Pirelli PZeros:

Front 275 30 ZR19
Rear 305 30 ZR19

Thanks for your input...
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Old 06-16-2012, 10:27 PM   #2
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What does it really take for people to actually sit and read the forum.......................? And you have been a member since 2009, WOW!

This question is asked time and time again,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

The answer is on your drivers door,,,,,,,,,,,,,,30, 30, 30, 30LBS give or take a couple of pounds to ensure that the tire is wearing evenly.

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Old 06-16-2012, 10:41 PM   #3
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Quote:
Originally Posted by ajara84 View Post
Simple question man...Don't reply if it bothers you that bad...WOW! Lol, hot and bothered are you...lol
Too lazy to read....................................

Same question just posted yesterday, just think 18 people looked at the post, none answered................................ .

http://forums.corvetteforum.com/c5-g...e-running.html

The time it took to post, a simple read would have found the answer.........Not RUDE just REAL....................
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Old 06-16-2012, 10:49 PM   #4
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30 PSI hot...
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Old 06-16-2012, 10:52 PM   #5
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30 PSI hot...
Thanks bro, disregard the anger management patient above...lmao...he's "REAL"!
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Old 06-16-2012, 11:26 PM   #6
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Nice job people....

Stock sizes follow the door sticker. Non stock sizes can require adjustments to the recommended pressure to maintain an even contact patch and have proper tire wear. The OP posted asked about non-stock sizes and non-stock tires and his tires are different than the other thread linked as well.

OP - I run my same sized tires at 30psi front and 27 to 28psi in the rear. I have around 40k miles on my rear PS2's and they are just worn down to the wear bars. If you look, most people posting about the PS2's are writing they won't go any further than 15k to 20k miles before they are worn out but that usually happens due to too much pressure wearing the middle out. Try it and see if your tires respond similarily.

Last edited by lionelhutz; 06-16-2012 at 11:30 PM.
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Old 06-16-2012, 11:55 PM   #7
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30 psi COLD, it's in the maual.
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Old 06-17-2012, 06:58 AM   #8
Bill Curlee
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Quote:
Originally Posted by lionelhutz View Post
Nice job people....

Stock sizes follow the door sticker. Non stock sizes can require adjustments to the recommended pressure to maintain an even contact patch and have proper tire wear. The OP posted asked about non-stock sizes and non-stock tires and his tires are different than the other thread linked as well.

OP - I run my same sized tires at 30psi front and 27 to 28psi in the rear. I have around 40k miles on my rear PS2's and they are just worn down to the wear bars. If you look, most people posting about the PS2's are writing they won't go any further than 15k to 20k miles before they are worn out but that usually happens due to too much pressure wearing the middle out. Try it and see if your tires respond similarily.
EXCELLENT ANSWER.
I have 19" CCW 505a rims 11.5" wide and TOYO Proxis T1R tires. They require less pressure in the rear but recommended pressure in the fronts to maintain the best wear qualities. I run 28 rear cold 30 front cold and get excellent wear and performance.

BC

PS,, I had P ZEROS and absoluty hated them. Hope they improved them since 2005.
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Old 06-17-2012, 08:06 AM   #9
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Quote:
Originally Posted by lionelhutz View Post
Nice job people....

Stock sizes follow the door sticker. Non stock sizes can require adjustments to the recommended pressure to maintain an even contact patch and have proper tire wear. The OP posted asked about non-stock sizes and non-stock tires and his tires are different than the other thread linked as well.

OP - I run my same sized tires at 30psi front and 27 to 28psi in the rear. I have around 40k miles on my rear PS2's and they are just worn down to the wear bars. If you look, most people posting about the PS2's are writing they won't go any further than 15k to 20k miles before they are worn out but that usually happens due to too much pressure wearing the middle out. Try it and see if your tires respond similarily.
Thanks for your help bro...I hope I have good luck with my Pzeros because they can get expensive...lol

I bet you feel stupid huh jewjenk? lmao...A "simple read" could have prevented you from lookin so ignorant on here..."WOW" lol
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Old 06-17-2012, 08:52 AM   #10
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thats ok, there are a lot of parrots on here that pick up on a few key words and then go off on a tirade. Some only will post "read the service manual" or in this case 30 psi blah blah. Good thing you didnt ask about oil for a heavily modified engine. The mobil 1 police would have already beaten you down.
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Old 06-17-2012, 03:40 PM   #11
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Quote:
Originally Posted by ajara84 View Post
Thanks for your help bro...I hope I have good luck with my Pzeros because they can get expensive...lol

I bet you feel stupid huh jewjenk? lmao...A "simple read" could have prevented you from lookin so ignorant on here..."WOW" lol
You're welcome. Ya, 19" tires in those sizes are pricy.

Don't bother replying to the personal attacks and try not to attack back. It's your thread so report it if you want. I'm just curious where your reply which appears to belong as post #3 went to?
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Old 06-17-2012, 07:39 PM   #12
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I always go to the tire manufacturers site and look at the replacement psi for the desired tire size. My Nitto NT05's are to be run at 32psi for my size tires. Of course monitoring the wear will tell you weather to add or subtract pressure.
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Old 06-17-2012, 09:03 PM   #13
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30 PSI hot...
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Old 06-17-2012, 09:38 PM   #14
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Whats wrong with that?
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Old 06-18-2012, 12:24 AM   #15
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Originally Posted by m6 c5 View Post
Whats wrong with that?
Your joking, right? You always set your tire pressure cold.
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Old 06-18-2012, 12:33 AM   #16
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Your joking, right? You always set your tire pressure cold.
Ive read of several people on here setting their tire pressures hot, and wouldnt that give you a more consistent tire patch throughout the year? Where as setting it cold it would vary with the temperature change would it not?
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Old 06-18-2012, 12:43 AM   #17
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Quote:
Originally Posted by m6 c5 View Post
Ive read of several people on here setting their tire pressures hot, and wouldnt that give you a more consistent tire patch throughout the year? Where as setting it cold it would vary with the temperature change would it not?
Every tire manufacturer advises a cold tire pressure setting. "Cold" is well defined, but what is "hot"? Driven for 10 miles? 80 degrees ambient? 90? 100? Your tire pressure increases 1 psi, for every 10 degrees increase in temperature. If you don't start from a cold(ambient air and undriven) setting, you'll be all over the board...depending how long you drive, and what season your in.
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Old 06-18-2012, 12:49 AM   #18
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Originally Posted by lucky131969 View Post
Every tire manufacturer advises a cold tire pressure setting. "Cold" is well defined, but what is "hot"? Driven for 10 miles? 80 degrees ambient? 90? 100? Your tire pressure increases 1 psi, for every 10 degrees increase in temperature. If you don't start from a cold(ambient air and undriven) setting, you'll be all over the board...depending how long you drive, and what season your in.
I understand that they all give you a cold setting but they also dont give a specific setting as the vehicle is going to be driven in a wide range of climates. Also it is my understanding that your tires will settle in and hold a specific temperature just like your cooling system but that temperature will vary with ambient air temperature like you stated which is why you would have to adjust your tire pressures according to the season giving you a more consistent contact patch over the year.
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Old 06-18-2012, 09:43 AM   #19
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Originally Posted by m6 c5 View Post
I understand that they all give you a cold setting but they also dont give a specific setting as the vehicle is going to be driven in a wide range of climates.
They can't give a specific setting, because "cold" is vehicle sitting, undriven, not in the direct sunlight, etc. Under those conditions, that is the "cold" setting.

Quote:
Originally Posted by m6 c5 View Post
Also it is my understanding that your tires will settle in and hold a specific temperature just like your cooling system but that temperature will vary with ambient air temperature like you stated which is why you would have to adjust your tire pressures according to the season giving you a more consistent contact patch over the year.
I had to read that three times. No, tires(related to pressure and temperature) are nothing like the engine's cooling system. Yes, you will have to adjust your tire pressure from season to season, as the average cold setting ambient temp will change.
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Old 06-18-2012, 10:00 AM   #20
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I was under the impression that the tires will reach a steady temperature after driving for X amount to time. If they do then your cold setting would change to try and maintain the hot setting. So if your tires reach 150* for instance and dont vary greatly from that number no matter how far you drive. Then when you set your tires at 30psi on a 90* day you will reach a final pressure of ~36psi, so it was my understanding that if you put 30psi in your tires when its 90* the final pressure reading would be different than if you put 30 psi in your tires when its 30* outside.
But my understanding of this could be completely wrong
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