Tires Overheating? Help
Thread Starter
Burning Brakes
Joined: Sep 2008
Posts: 826
Likes: 12
From: Phoenix, AZ
Tires Overheating? Help
Hello,
I am noticing that while driving normally on drives over 1/2 hour I am getting little tiny spurts of rubber shooting off the tires. I find them on the rims and on the wheel wells. The tires maximum inflation is around 50LBS. I run them at around 40LBS or the sensors come on.
Anyone know what this is? and what to do?
Thank you,
I am noticing that while driving normally on drives over 1/2 hour I am getting little tiny spurts of rubber shooting off the tires. I find them on the rims and on the wheel wells. The tires maximum inflation is around 50LBS. I run them at around 40LBS or the sensors come on.
Anyone know what this is? and what to do?
Thank you,
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Yes. You have too much air in the tires. Set the tire pressure to 32 psi front and 30 psi rear COLD.
and YES performance tires will spit out rubber. That is normal for a soft, performance tire that has grip.
you should see race tires, how much rubber or track turds get spitt out, stuck on the car, under the car, in the wheel wells and on rims.
get use to it
and YES performance tires will spit out rubber. That is normal for a soft, performance tire that has grip.
you should see race tires, how much rubber or track turds get spitt out, stuck on the car, under the car, in the wheel wells and on rims.
get use to it
Drifting
Joined: Dec 2000
Posts: 1,833
Likes: 4
From: Calgary, Alberta
Yes. You have too much air in the tires. Set the tire pressure to 32 psi front and 30 psi rear COLD.
and YES performance tires will spit out rubber. That is normal for a soft, performance tire that has grip.
you should see race tires, how much rubber or track turds get spitt out, stuck on the car, under the car, in the wheel wells and on rims.
get use to it
and YES performance tires will spit out rubber. That is normal for a soft, performance tire that has grip.
you should see race tires, how much rubber or track turds get spitt out, stuck on the car, under the car, in the wheel wells and on rims.
get use to it
Thread Starter
Burning Brakes
Joined: Sep 2008
Posts: 826
Likes: 12
From: Phoenix, AZ
Tires?
40 lbs is way too much pressure. should be 30lbs.[/QUOTE]
The manufactures rating on the tires state around 50LBS. I have though tires handled the best at close to their maximum pressure. Is this not the case?
The manufactures rating on the tires state around 50LBS. I have though tires handled the best at close to their maximum pressure. Is this not the case?
Safety Car
Joined: Jan 2001
Posts: 4,387
Likes: 691
From: Boise ID
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Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
The manufactures rating on the tires state around 50LBS. I have though tires handled the best at close to their maximum pressure. Is this not the case?[/QUOTE]
Not a chance.
Most tires perform best will under normal hot pressures.
What brand tires are they? and the model ?
Not a chance.
Most tires perform best will under normal hot pressures.
What brand tires are they? and the model ?
Burning Brakes
Joined: Feb 2010
Posts: 761
Likes: 1
From: sunnyvale ca
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
HOLY MOSES!!!!!
40 pounds! And you wanted to go to 50 but the TPS went happy!
When I drive from CT to Bowling Green KY the change from 50 deg to 90 degree daily temps cause my tires to increase in pressure to 36-38 PSI. I can immediately tell the difference and I have to pull over and readjust to a normal 33 HOT pressure. The car rides ROUGH and has less handling ability at those pressures. Just the opposite on the way back.
I set my 02 Z rear pressures to 28 COLD and fronts at 30 COLD and have excellent tire wear and thats where they handle the best once warm.
40 pounds! And you wanted to go to 50 but the TPS went happy!When I drive from CT to Bowling Green KY the change from 50 deg to 90 degree daily temps cause my tires to increase in pressure to 36-38 PSI. I can immediately tell the difference and I have to pull over and readjust to a normal 33 HOT pressure. The car rides ROUGH and has less handling ability at those pressures. Just the opposite on the way back.
I set my 02 Z rear pressures to 28 COLD and fronts at 30 COLD and have excellent tire wear and thats where they handle the best once warm.
Safety Car
Joined: Jun 2004
Posts: 4,986
Likes: 393
From: Stoney Creek Ontario
the tire manufacturer may rate the tires at a max of 50psi, but the car manufacturer specifies the recommended psi and it's on a tag on the driver's door! 30 psi is the way to go!
Last edited by dankhts; May 8, 2010 at 10:46 PM.
Safety Car
Joined: May 2008
Posts: 4,237
Likes: 11
From: Lacombe Louisiana
I really find it odd that so many folks go by the MAX pressure printed on the sidewalls! Guess no one ever reads an owners manual or knows to look at the drivers door for the proper tire pressures!Your tires are over inflated!
Le Mans Master
Joined: Feb 2002
Posts: 6,937
Likes: 21
From: Waldorf MD
Tires are rated at their maximum weight load at the maximum air pressure.
For example, the stock runflats are rated at 1729 lbs each front and 1477 lbs each rear at 44 psi. Your car only weighs 3300 lbs so you don't need 44 psi. 44 psi would support a 6714 lb car!
You want maximum tread contact (read flat on the road) for your weight car. Overinflating tires causes them to bow and contact only in the center of the tread, causing wear out of the centers. Underinflating allows tread shoulder to roll over, wearing out the edges of the tread.
The only time air pressure should be increased is for a sustained high speed run.
FYI, the TPMSs alarm at 26 and 42 psi. ET says the sweet spot for C5 tires is 30 psi HOT.
For example, the stock runflats are rated at 1729 lbs each front and 1477 lbs each rear at 44 psi. Your car only weighs 3300 lbs so you don't need 44 psi. 44 psi would support a 6714 lb car!
You want maximum tread contact (read flat on the road) for your weight car. Overinflating tires causes them to bow and contact only in the center of the tread, causing wear out of the centers. Underinflating allows tread shoulder to roll over, wearing out the edges of the tread.
The only time air pressure should be increased is for a sustained high speed run.
FYI, the TPMSs alarm at 26 and 42 psi. ET says the sweet spot for C5 tires is 30 psi HOT.
Last edited by Oldvetter; May 9, 2010 at 08:06 AM.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
sustained high speed run will heat up the tires naturally, thus the air pressure will go up.
tires will heat up 7 to 10 PSI on their own under hard or high speed driving.
Do not increase the cold air pressure to get higher HOT air pressure.