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zo6 tire size

Old 03-20-2010, 10:54 PM
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leo97
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Default zo6 tire size

I have a 97 vet with zo6 rims. I'm currently running 295/35 18 on the back. Will a 295/30 18 work?
Old 03-20-2010, 11:04 PM
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Mark C5
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If you go to the Tire Rack website and search for tires by size you will find most manufactures recommend a 10-11 inch rim size for that tire. Yours' should be 10.5's so you should be fine
Old 03-20-2010, 11:12 PM
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leo97
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Default tires

Thanks for the help. I found a set of hankook tires that are 295/30 18"
and wasn't sure they would fit, not to sure what the 30-35 on the tire refers to.
Old 03-21-2010, 01:40 AM
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wamara
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Originally Posted by leo97
not to sure what the 30-35 on the tire refers to.
It would be in your best interest to learn . Width is fine, but you are going to a lower profile tire, and thus a smaller rolling diameter (circumference). Your car doesn't have AH, so if it becomes less than that of your front tire, I don't think it will impact your traction control. It will throw off your speedometer.
Old 03-21-2010, 09:11 AM
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Jims79
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Originally Posted by leo97
Thanks for the help. I found a set of hankook tires that are 295/30 18"
and wasn't sure they would fit, not to sure what the 30-35 on the tire refers to.
The 30 or 35 is the height of the side wall. So a 295/30/18 will be as wide as your old tire but lower. If your going to buy 30's for the rear you will have to buy 265/35/17 for the front. I wouldn't do that. You will be putting smaller tires on your vette which will make your wheel wells look like you have mini tires on from the side view.
Old 03-21-2010, 09:25 AM
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Y2Kvert4me
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Originally Posted by wamara
Your car doesn't have AH, so if it becomes less than that of your front tire, I don't think it will impact your traction control.
You got that backwards...

Active Handling is unaffected by tire height changes.

Traction Control is affected, and yes his 97 has it.


I would not run the 295/30/18 on the rear, as your chances of finding a shorter front tire (in either 17 or 18" size) are quite slim....and you need to keep the rear tires taller than the fronts to avoid unwanted traction control intrusion.


Old 03-21-2010, 02:02 PM
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[QUOTE=Y2Kvert4me;1573492649]You got that backwards...

Active Handling is unaffected by tire height changes.

Traction Control is affected, and yes his 97 has it.


Tom,
Not trying to get into an argument here, but why are you saying the AH doesn't get impacted if the rear tire circumference is less than the fronts? I thought this has been a perennial topic here

As to traction control, how would the change in the front to rear tire circumference ratio affect the TC? Isn't the TC just a function of what is going on with the left rear wheel and right rear wheel? How do the front tires play a role in this?
Old 03-21-2010, 02:42 PM
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Originally Posted by wamara
Originally Posted by Y2Kvert4me
You got that backwards...

Active Handling is unaffected by tire height changes.

Traction Control is affected, and yes his 97 has it.

Tom,
Not trying to get into an argument here, but why are you saying the AH doesn't get impacted if the rear tire circumference is less than the fronts? I thought this has been a perennial topic here

As to traction control, how would the change in the front to rear tire circumference ratio affect the TC? Isn't the TC just a function of what is going on with the left rear wheel and right rear wheel? How do the front tires play a role in this?
Traction control compares front wheel speeds to rear wheel speeds.
When the rears begin to turn faster the fronts, it is an indication of lost traction, TC intervenes and cuts power. Mounting shorter rear tires effectively increases sensed rear wheel speed. Keeping tire heights proportional front to rear is very important for this reason.

Active Handling monitors steering position, and car direction. When it senses the car is traveling in a direction different than that of what the steering wheel is pointed towards, it assumes the car is in a skid, and applies braking depending on which way the car is sensed to be skidding. It does so through the yaw and steering wheel position sensor.


Old 03-21-2010, 08:02 PM
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Default tires

Thanks for the info everyone. I knew someone could help answer my question... I didn't want to buy the tires without finding out about the size. I thought the last number had something to do with the profile.
Thanks for clearing that up
Old 03-21-2010, 08:12 PM
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Tire sizes work like this...

295/35/18

295 - width of tire in mm.

35 - sidewall thickness, expressed as a percentage of width. The sidewall dimension is 35% of 295mm in this example. Many people don't understand this, but as you can see, a wider tire with the same profile number also become taller.

18 - The wheel diameter (in inches).


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