Turbo Tyres and Wheel Specs

[darkvisorman]

Can anybody tell me the standard sizes of tyres and wheels for the front and back of a 996 turbo?
thanks in advance

 

[dilloncallum]

225/40/ZR 18 front

295/30/ZR 18 rear

 

[darkvisorman]

Thanks for the quick reply dillan, can anybody tell me if these specs will fit
Front - 235/35/19
Back - 295/30/19
Rim size - 8.5J +11J x 19"
Thanks again

 

[Dave Wilkinson]

The fronts are OK - the reduction in the sidewall ratio compensates for the extra inch in the wheel diameter. However, the rear is definitely NOT OK. The overall diameter of the tyre is an inch larger than the original and will put the gearing and speedo out by more than 3%. You would need to go with a 295/25x19 to make it right. Compare the sizes here.

Regards

Dave

 

[darkvisorman]

thanks for the info, answers the question i was asking - cheers

 

[cytefx]

you also need to consider the offsets (these are the important numbers)

for example a 8.5 wheel with a 20et offset is a completly different to one with say a 60et

these are the numbers that dictate how far off the centerline the wheel centre sits, this is the number that will tell you if the wheel will scrape.

John