can i fit 265's on a 8.5 rim?

 

Maybe.


I put 245s on 8.5" rims.

 

i put 245s on my 8's

 

265-35-18 and 265-40-17 are recommended for 9-10.5"

So, you might be able to make it fit, but it's not recommended.

 

What is the wheel diameter?
and..

What is the tire profile?

 

i just got some 18" 8.5 turbo twist and the porsche dealership has some like new tires they want to sell me for 250. michelin pilot sport 265/40/18 and 235/40/18

 

anybody got 245/50/15s on 8" rears? do they rub at all?

 

i have 245/50/16 on 8" rears and no rub

 

early or late car?>

 

late

 

265/40/18 is the wrong size for a 944. It's too big.
265/35/18 is a better size.
It's also recommended for 9-10.5" wheel.

The 235/40/18 should be ok. Although 225/40/18 are closer to stock size.

 

255/40/17 fit fine on my 83 with no rubbing, I have 8.5" rear rims

 

8.5 x 18?! You sure you don't mean 7.5"? The 8.5's only came on 996GT2's.

Also, as noted above, I concur, and use for my Winter Tires on Twists, 225/40 and 265/35. (235/40 works, as I have that on the front of my Summers. Though I kinda like the look of the 225/40 Side Profile)

235/40 - 265/40 are the sizes for a Cayman/Boxster(987), and not correct for our cars, however will work.

 

yeah they say 8.5Jx18

 

were the 8.5 on the gt2 fronts? what do you mean by not correct?