[Alesnik-MD]

I am thinking seriously about going to Z06 wheels and Goodyear SC tires. With the change in the tire aspect ratio, can anyone tell me what the Z06 outer diameters of the mounted tires are? If it is not the same as my stock tires, my speedo will be off. I believe a smaller rear diameter will also increase the final drive ratio too. Anyone know the formulas?

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99 Torch red/black C5 convertible. Carbon fiber Vortex, Z51, 3.15, Active handling, HUD, etc.

 

[Hondo01]

I'm not positive, but I read that the C/5
computer will read different tire sizes and make adjustments so the speedo will be correct...

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2001 Torch Red ZO6 , Donaldson, B&M Ripper, PIAA Fogs, Bilstiens,
Kenisis 18" Black & Polished wheels, Lowered 1+"

 

[Alesnik-MD]

<BLOCKQUOTE>quote:</font><HR>Originally posted by Hondo01:
I'm not positive, but I read that the C/5
computer will read different tire sizes and make adjustments so the speedo will be correct...

<HR></BLOCKQUOTE>

I don't see how this is possible.

 

[Hondo01]

I heard this from Mallett when it was a hot topic on the c/5 registry quite a while back, You could e-mail them for more info.
Craig

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2001 Torch Red ZO6 , Donaldson, B&M Ripper, PIAA Fogs, Bilstiens,
Kenisis 18" Black & Polished wheels, Lowered 1+"

 

[lazygun]

Alesnik-

I don't think the vette's computer will adjust for you. But, if you go to http://www.powerdog.com/tiresize.cgi

the script will figure it out for you. Erase the sample sizes they have in the left hand field. Put your original size tires in first and then the new size tires. Hit the compute button and viola. You have all the dimensions displayed and the percent difference between the two.

Hope this helps.

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-derek Z06 Black/Mod.Torch

 

[Alesnik-MD]

<BLOCKQUOTE>quote:</font><HR>Originally posted by lazygun:
Alesnik-

I don't think the vette's computer will adjust for you. But, if you go to http://www.powerdog.com/tiresize.cgi

the script will figure it out for you. Erase the sample sizes they have in the left hand field. Put your original size tires in first and then the new size tires. Hit the compute button and viola. You have all the dimensions displayed and the percent difference between the two.

Hope this helps.

<HR></BLOCKQUOTE>

Thanks 'Gun. That helps a lot!