same size diameter tires front and rear??
09-23-2011, 01:33 AM
#1
Burning Brakes
Thread Starter
same size diameter tires front and rear??
Have found Hoozier scrubs that could allow me to run the same sized diameter tires front and rear on my '08 C6. On the track, I run with my active handling off. I am expecting to possibly have ABS come on turn 2 of Infinion. If I do, couldn't I just pull the ABS fuze? For the track I have 18" C6 9.5" OEM front wheels and the same 18" wheels widened to 11" for the rear.
Today I was going to have Nick flash the computer to run with the same diameter tire front and back. However we measured the diameter of my runflats that are on my car and the diameters were identical.
Sounds like my car's computer already accepts the same size diameter tires. Do you guys think a set of same sized diameter Hoosiers front and back might work?
Today I was going to have Nick flash the computer to run with the same diameter tire front and back. However we measured the diameter of my runflats that are on my car and the diameters were identical.
Sounds like my car's computer already accepts the same size diameter tires. Do you guys think a set of same sized diameter Hoosiers front and back might work?
09-23-2011, 07:43 AM
#2
Tech Contributor
Member Since: Oct 1999
Location: Charlotte, NC (formerly Endicott, NY)
Posts: 40,078
Received 8,915 Likes
on
5,326 Posts
First, flashing the ECM will not do anything to change programming of the ABS. That is all handled by the EBCM which tuners cannot access.
Second, there must have been a mistake in your measurements of the EMT tire diameter since the rear EMTs are 1.1 to 1.2 inches larger in diameter depending on whether the car has Z06 style wheels or base/Z51 wheels.
The ABS function looks at individual wheel speeds to determine whether one wheel or another is locking up. I have been running the same diameter tires on C5s and C6s since 1997 and have never had an issue with the ABS. Recently, I have actually been running Toyo R888s on my Z06 with larger diameter tires in the front and the ABS isn't upset by that either. TC gets upset at about 10 mph but ABS isn't bothered.
Answer to your question is, YES.
Bill
Second, there must have been a mistake in your measurements of the EMT tire diameter since the rear EMTs are 1.1 to 1.2 inches larger in diameter depending on whether the car has Z06 style wheels or base/Z51 wheels.
The ABS function looks at individual wheel speeds to determine whether one wheel or another is locking up. I have been running the same diameter tires on C5s and C6s since 1997 and have never had an issue with the ABS. Recently, I have actually been running Toyo R888s on my Z06 with larger diameter tires in the front and the ABS isn't upset by that either. TC gets upset at about 10 mph but ABS isn't bothered.
Answer to your question is, YES.
Bill
09-25-2011, 09:25 PM
#4
Drifting
I run 295 3x 18 on all corners of my C5 .. all TC off never had any issues 1 it saves cost and 2 lets ya have endless rotation I run a few weekends then have the tires flipped on the rims found a guy on craigs list who does the flip and balance for 12 bucks that and 400 bucks for the scrubs makes for a darn good deal....
Square = good value and no problems for me
Square = good value and no problems for me
09-25-2011, 11:56 PM
#5
Burning Brakes
Thread Starter
Thanks Bill
First, flashing the ECM will not do anything to change programming of the ABS. That is all handled by the EBCM which tuners cannot access.
Second, there must have been a mistake in your measurements of the EMT tire diameter since the rear EMTs are 1.1 to 1.2 inches larger in diameter depending on whether the car has Z06 style wheels or base/Z51 wheels.
The ABS function looks at individual wheel speeds to determine whether one wheel or another is locking up. I have been running the same diameter tires on C5s and C6s since 1997 and have never had an issue with the ABS. Recently, I have actually been running Toyo R888s on my Z06 with larger diameter tires in the front and the ABS isn't upset by that either. TC gets upset at about 10 mph but ABS isn't bothered.
Answer to your question is, YES.
Bill
Second, there must have been a mistake in your measurements of the EMT tire diameter since the rear EMTs are 1.1 to 1.2 inches larger in diameter depending on whether the car has Z06 style wheels or base/Z51 wheels.
The ABS function looks at individual wheel speeds to determine whether one wheel or another is locking up. I have been running the same diameter tires on C5s and C6s since 1997 and have never had an issue with the ABS. Recently, I have actually been running Toyo R888s on my Z06 with larger diameter tires in the front and the ABS isn't upset by that either. TC gets upset at about 10 mph but ABS isn't bothered.
Answer to your question is, YES.
Bill
You guys were correct. No problems what so ever with running the same size wheels. After running the entire day with traction control off, I was currious if it would work in competitive mode and sure enough it did.
Just wondering if anyone has tried the Avon tires from England? Roger Kraus Racing in Hayward who sells me my Hoosier scrubs also has carried Goodyear for years but is now carrying Avon. Supposedly these are very popular in Europe.
09-26-2011, 02:12 PM
#6
Le Mans Master
Thanks Bill and to all who answered with your confirmations.
You guys were correct. No problems what so ever with running the same size wheels. After running the entire day with traction control off, I was currious if it would work in competitive mode and sure enough it did.
Just wondering if anyone has tried the Avon tires from England? Roger Kraus Racing in Hayward who sells me my Hoosier scrubs also has carried Goodyear for years but is now carrying Avon. Supposedly these are very popular in Europe.
You guys were correct. No problems what so ever with running the same size wheels. After running the entire day with traction control off, I was currious if it would work in competitive mode and sure enough it did.
Just wondering if anyone has tried the Avon tires from England? Roger Kraus Racing in Hayward who sells me my Hoosier scrubs also has carried Goodyear for years but is now carrying Avon. Supposedly these are very popular in Europe.
