Goodyear runflats
Thread Starter
Intermediate
Joined: Sep 2008
Posts: 26
Likes: 0
From: Chicago IL
Goodyear runflats
I have an 08 coupe 6spd with the standard gy runflats. My only modification is a Diablosport tune. I have noticed that I am having a hard time getting traction in first gear and about half way through 2 nd gear. They recommend 30psi, but since the car sat pretty much the whole winter, I adjusted the tire pressure to 34psi in all 4 tires. Could the additional 4 psi be the cause of my traction issues? My vette only has 900 miles, so I know for a fact that the tires are in perfect shape. What would be the best replacement if I decided to replace the stock runflats?
Le Mans Master
Joined: Jun 2007
Posts: 7,610
Likes: 12
I have no experience w/ runflats in cold climates, but from what I've read here in CF there certainly can be traction problems. I don't see the additional few psi being a problem and I would imagine they do better after they're warmed up.
However, I'm not a fan of runflats at all and would recommend replacing them with good performance tires (non-runflats.) There are many choices depending on your driving behavior.
This forum is a great reference database for all things Corvette and the Search utility at the top should yield numerous threads on various tire choices for your specific needs.
However, I'm not a fan of runflats at all and would recommend replacing them with good performance tires (non-runflats.) There are many choices depending on your driving behavior.
This forum is a great reference database for all things Corvette and the Search utility at the top should yield numerous threads on various tire choices for your specific needs.
Le Mans Master
Joined: Feb 2008
Posts: 8,515
Likes: 255
From: Rochester New York
I have no experience w/ runflats in cold climates, but from what I've read here in CF there certainly can be traction problems. I don't see the additional few psi being a problem and I would imagine they do better after they're warmed up.
However, I'm not a fan of runflats at all and would recommend replacing them with good performance tires (non-runflats.) There are many choices depending on your driving behavior.
This forum is a great reference database for all things Corvette and the Search utility at the top should yield numerous threads on various tire choices for your specific needs.
However, I'm not a fan of runflats at all and would recommend replacing them with good performance tires (non-runflats.) There are many choices depending on your driving behavior.
This forum is a great reference database for all things Corvette and the Search utility at the top should yield numerous threads on various tire choices for your specific needs.
Team Owner
Joined: Nov 2007
Posts: 45,273
Likes: 8,545
From: Rochester, NY
I have no experience w/ runflats in cold climates, but from what I've read here in CF there certainly can be traction problems. I don't see the additional few psi being a problem and I would imagine they do better after they're warmed up.
However, I'm not a fan of runflats at all and would recommend replacing them with good performance tires (non-runflats.) There are many choices depending on your driving behavior.
This forum is a great reference database for all things Corvette and the Search utility at the top should yield numerous threads on various tire choices for your specific needs.
However, I'm not a fan of runflats at all and would recommend replacing them with good performance tires (non-runflats.) There are many choices depending on your driving behavior.
This forum is a great reference database for all things Corvette and the Search utility at the top should yield numerous threads on various tire choices for your specific needs.
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
I'd say you could be having traction issues due to the added psi per tire. The 4 psi you've added may not seem significant, but every bit counts.
In addition, depending on how you checked those tire pressures on taking your car out for the first time since storage, it could be even a couple more pounds, one way or the other (plus or minus).
Check it with a good gauge at cold temps (meaning, first thing in the morning) and see what it reads.
If it's not 30, try setting it to 30. I see you're in Chic. Recognize that at temps below 50 ambient (which it probably is, first thing in the morning), you could be losing progressively more traction with max summer tires which yours probably are. The loss of traction may not necessarily be proportional at 40, 30, etc.
In addition, depending on how you checked those tire pressures on taking your car out for the first time since storage, it could be even a couple more pounds, one way or the other (plus or minus).
Check it with a good gauge at cold temps (meaning, first thing in the morning) and see what it reads.
If it's not 30, try setting it to 30. I see you're in Chic. Recognize that at temps below 50 ambient (which it probably is, first thing in the morning), you could be losing progressively more traction with max summer tires which yours probably are. The loss of traction may not necessarily be proportional at 40, 30, etc.
Team Owner
Joined: Sep 2000
Posts: 25,019
Likes: 2,714
From: Far NW 'burbs of Chicago
St. Jude Donor '13
Correct. Any high performance summer tire will lose more traction at cold temps than an all season tire, and any overinflation can make it worse. The Supercar runflats on my 2006 are noticably more slippery at 50'F than at 80'F, below freezing they are awful.
Also, you need to drive a few miles to get the tires up to operating temp before doing anything exciting.
Spring is here, Enjoy!
Also, you need to drive a few miles to get the tires up to operating temp before doing anything exciting.
Spring is here, Enjoy!
Advanced
Joined: Mar 2009
Posts: 94
Likes: 0
Correct. Any high performance summer tire will lose more traction at cold temps than an all season tire, and any overinflation can make it worse. The Supercar runflats on my 2006 are noticably more slippery at 50'F than at 80'F, below freezing they are awful.
Also, you need to drive a few miles to get the tires up to operating temp before doing anything exciting.
Spring is here, Enjoy!
Also, you need to drive a few miles to get the tires up to operating temp before doing anything exciting.
Spring is here, Enjoy!
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Racer
Joined: Oct 2005
Posts: 371
Likes: 0
From: Long Valley NJ
I ran my car straight through the NJ winter with GY runflats. I did some amazing burnouts through 3 gears. Drifting was also another great benefit. Traction? It's just a word in the dictionary when the temps go below 40 with those tires and power is applied. It's getting better now since our temps are in the mid to high 50's now. Those are summer only rated. Other guys have had better results with different brands.
I have to find something better for next year. Probably Pirellis.
I have to find something better for next year. Probably Pirellis.
Burning Brakes
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
I have an 08 coupe 6spd with the standard gy runflats. My only modification is a Diablosport tune. I have noticed that I am having a hard time getting traction in first gear and about half way through 2 nd gear. They recommend 30psi, but since the car sat pretty much the whole winter, I adjusted the tire pressure to 34psi in all 4 tires. Could the additional 4 psi be the cause of my traction issues? My vette only has 900 miles, so I know for a fact that the tires are in perfect shape. What would be the best replacement if I decided to replace the stock runflats?
