Black Z06 on 360 Forged Mesh-8s.

[Atlblkz06]

Stock is
18x9.5 275/35/18
19x12 325/30/19.

If I buy aftermarket - I'd probably stick to similar sizes or do 19/20. 20 is too big up front I think.

Surprisingly the contact patch with 345s is pretty much the same as the 325 due to differences in the sidewall etc (someone measured them on corvetteforum).

However the Traction Control/Active Handling really gets messed up when you change tire sizes even a little bit and strange error messages come up when doing 120+.

[NevrNufTorq]

Stock is
18x9.5 275/35/18
19x12 325/30/19.

If I buy aftermarket - I'd probably stick to similar sizes or do 19/20. 20 is too big up front I think.

Surprisingly the contact patch with 345s is pretty much the same as the 325 due to differences in the sidewall etc (someone measured them on corvetteforum).

However the Traction Control/Active Handling really gets messed up when you change tire sizes even a little bit and strange error messages come up when doing 120+.

that thread was sooo funny...drag guys been doin it forever...when you go with wider tires the contact patch rarely changes or very little unless you widen the rims that they are mounted to....you go from 325 to 345 and add the inch wider rim and the contact patch changes tremendously...of course this is all relative to the widths involved and the tire pressure with sidewall height

oh, and the reason the tc/ah freaks out is b/c this is controlled by speed of the tires measured by the abs....it can be changed but heard it's still a pain when you use hp tuners and stuff....the computer is programmed with exact circumference measuements front and rear and even diff brands arent the same with the same size so it can really wig out....and my car is one of em but it freaks out anyway whenever i push the pedal hard so i just always turn it off

love those 18/19 combos but just wont work for traction so gotta stick with the 18's rear always a sacrifice between power and looks

[NevrNufTorq]

oh, this is demonstrated the easiest with slicks cause they have a very easily seen tread block....put a 26x10x15 slick on a 15x8 inch rim and then put the same tire on a 15x10...huge diff between contact patch

a 345 is a better tire and will provide larger contact patch but only on a properly sized rim