Just checking on a tire question
Thread Starter
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Joined: Feb 2011
Posts: 63
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From: Brookfield WI
Just checking on a tire question
It's time to replace the original rear tires on my '06. The fronts are still good.
Is there a problem with changing to Michelin Pilot Sport A/S Plus ZP on the rears and running the original Goodyear's on the front?
Thanks,
Is there a problem with changing to Michelin Pilot Sport A/S Plus ZP on the rears and running the original Goodyear's on the front?
Thanks,
Melting Slicks
Joined: Mar 2013
Posts: 3,104
Likes: 626
From: Baton Rouge LA
IMO if the car is raced, anything other than drag racing, it might be a good reason to change all four. OTOH if drag raced or used on the street I see no reason to toss two good front tires, even if they are stock GYs.
Le Mans Master
Joined: Oct 2012
Posts: 6,391
Likes: 1,454
From: South Dakota
I replaced my OEM tires last spring, and debated replacing only the fronts since the rears still had "decent" tread on them. I decided to just go ahead and replace all four with Firehawk rft's. I am glad I did...they are a matching set all around, and are quiet and handle great. Leaving the OEM GY's on the rear would not have helped the noisy tire issue.
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Le Mans Master
Joined: Sep 2004
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From: Madison (Huntsville) Alabama
CI 6-7-8 Veteran
St. Jude Donor '09
I replaced the fronts on my car with Pilot Super Sports and still have the original Goodyears on the back. It seems to be just fine, although mixing standard and run flat tires is not recommended.
I bought my car a year ago and it's an '09. Actually, one of the rears has been replaced since its manufacture date is in 2012.
Your tires are about 7 years old. You really shouldn't be using tires that old. Might want to replace all four of them.
I bought my car a year ago and it's an '09. Actually, one of the rears has been replaced since its manufacture date is in 2012.
Your tires are about 7 years old. You really shouldn't be using tires that old. Might want to replace all four of them.
Instructor
Joined: Oct 2012
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Le Mans Master
Joined: Oct 2012
Posts: 5,910
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From: CA
St. Jude Donor '17
My 06 came with FS WO RFs from the dealer where it was traded in. I like them very much. Good traction and quiet. I have nearly 10,000 on them and I can't tell they've ever been driven. Niiiice!
Advanced
Joined: Jul 2013
Posts: 92
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From: Colorado
I prefer four matched tires. Same tread pattern and same rubber compounds.
Does anyone know if you can mix run flats with non-run flats? I have a friend considering this and I think it's insane, but that's just me.
Does anyone know if you can mix run flats with non-run flats? I have a friend considering this and I think it's insane, but that's just me.
Race Director
Joined: Dec 2007
Posts: 19,574
Likes: 167
From: Frederick, MD
I wouldn't put an all season tire on their with summer tires. You'll have a loose front end in the wet and loose rear in the dry. I don't like mixing tires because although you might not use the full performance of the car in normal driving you may during emergency driving.
Besides the fronts are the cheaper tire on the C6. A bargain compared to the rears.
Besides the fronts are the cheaper tire on the C6. A bargain compared to the rears.
Team Owner
Joined: Jun 2005
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From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
Le Mans Master
Joined: Oct 2012
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From: CA
St. Jude Donor '17
Geebus man, the difference, if any, wouldn't be anywhere near a catastrophe...'one axle going one way...' They're all radial tires with superior sidewall flex keeping the rubber on the ground especially at severe lean angles. Only a profound difference in tread design or tread thickness would create some kind of ill handling anomalie on a same size tire. And even then the handling difference if any, would be hard to discern on the rear, the fronts would transmit a lot more information.
Racer
Joined: Mar 2010
Posts: 343
Likes: 7
From: DFW TX
I did a little net research on this for a actual scientific report on the different friction coefficients on new and used tread because I dont like the "well I paid $60,000 for my car, so I think you should shell out the maximum amount of money on every purchase too" standard fair. Unfortunately, I couldn't find anything conclusive that had any kind of math or a study to back it up.
From most accounts, iclick is correct. More so if you are a fair weather driver on street conditions where over-steer and under-steer (performance driving) on dry roads are not going to come into play. In a braking situation, the used tires on a dry road will have a greater friction coefficient, causing better stopping power. Would it cause any noticeable difference in control? The much larger brakes put a greater force on the front wheels to begin with, so a tire that has more tread hitting the pavement, may actually increase performance?
For wet conditions, well here is a little video (embed isn't working):
http://www.youtube.com/watch?v=--Hb5...ature=youtu.be
From most accounts, iclick is correct. More so if you are a fair weather driver on street conditions where over-steer and under-steer (performance driving) on dry roads are not going to come into play. In a braking situation, the used tires on a dry road will have a greater friction coefficient, causing better stopping power. Would it cause any noticeable difference in control? The much larger brakes put a greater force on the front wheels to begin with, so a tire that has more tread hitting the pavement, may actually increase performance?
For wet conditions, well here is a little video (embed isn't working):
http://www.youtube.com/watch?v=--Hb5...ature=youtu.be
Last edited by Firewater Burns; Aug 24, 2013 at 06:12 AM.
Race Director
Joined: Jan 2011
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From: Tonawanda New York
I would never mix them,I'm positive the handling of the car would be diminished.
