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2011-2014 Mustangs
Wheels/Tires/Brakes
OEM Brembo/Boss summer P-Zeros, warm tire vibration problem with 2 different sets
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<blockquote data-quote="lsxjunkie" data-source="post: 14366702" data-attributes="member: 82556"><p>My Track Pack car came with 255/40/19 P-Zeros. I took them off in for 245/40 Blizzaks in November of last year and put them back on in April of this year. I put them back on and had them Road Force balanced with a Hunter GSP9700. They road forced out to under the .026 tolerance limit at all 4 corners. They immediately developed a very strange vibration only after the tires had warmed up on the highway. The vibration was inconsistent in severity, but always came on around 65-70mph, and would get worse if I drove the car up to 100mph and then came back down to 65mph. I ended up taking all the tires and spinning them 180* on the wheels, and they all road forced back in under .015 and the problem went away. </p><p></p><p>Fast forward to 3 weeks ago, I bought a set of Boss 302 takeoffs with low mileage tires. The tires sat off the car for a year before I bought them. Bolt them up and they're fine, but present a similar, but less severe vibration when the tires would warm up. I check the road force on the fronts and one comes out to .024, the other to .021. I have the tech spin the .024 tire 180* and it comes out to .019, and now the vibration is incredibly bad, worse than in the spring with my factory tires. Mind you, the wheels balanced out with barely 3 stick on weights, so it's not a balance issue.</p><p></p><p>I know my solution is to go have the tire dismounted AGAIN (frustrating) and have them spin it back and balance it, but I just want to know if anyone else has had this problem with their Pirellis. I just find it incredible that this happened on 2 different sets of tires and wonder if it is an across the board issue.</p></blockquote><p></p>
[QUOTE="lsxjunkie, post: 14366702, member: 82556"] My Track Pack car came with 255/40/19 P-Zeros. I took them off in for 245/40 Blizzaks in November of last year and put them back on in April of this year. I put them back on and had them Road Force balanced with a Hunter GSP9700. They road forced out to under the .026 tolerance limit at all 4 corners. They immediately developed a very strange vibration only after the tires had warmed up on the highway. The vibration was inconsistent in severity, but always came on around 65-70mph, and would get worse if I drove the car up to 100mph and then came back down to 65mph. I ended up taking all the tires and spinning them 180* on the wheels, and they all road forced back in under .015 and the problem went away. Fast forward to 3 weeks ago, I bought a set of Boss 302 takeoffs with low mileage tires. The tires sat off the car for a year before I bought them. Bolt them up and they're fine, but present a similar, but less severe vibration when the tires would warm up. I check the road force on the fronts and one comes out to .024, the other to .021. I have the tech spin the .024 tire 180* and it comes out to .019, and now the vibration is incredibly bad, worse than in the spring with my factory tires. Mind you, the wheels balanced out with barely 3 stick on weights, so it's not a balance issue. I know my solution is to go have the tire dismounted AGAIN (frustrating) and have them spin it back and balance it, but I just want to know if anyone else has had this problem with their Pirellis. I just find it incredible that this happened on 2 different sets of tires and wonder if it is an across the board issue. [/QUOTE]
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2011-2014 Mustangs
Wheels/Tires/Brakes
OEM Brembo/Boss summer P-Zeros, warm tire vibration problem with 2 different sets
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