can i run a higher profile on my 19 inch rim for a 996 turbo. currently running a 315/25/19 and would like a bit more sidewall. Could I do a 305/30/19?? Anybody doing this? any pics would be appreciated. TIA I think the front is 235/30/19

 

The key is going to be tire specs on the 305 for both rim width and overall diameter. The overall diameter can't be greater than 4% difference between front and rear due to the AWD.

 

u can run that size rear.. but I think you will have to change the front tire size to match the rear tires better maybe a 245/35 TIRE

 

Bad idea to use 305/30 19 rear tire. The diameter difference is great enough to cause your front differential to overheat. There is no sensor in the front differential and you learn of a problem is by front diff failure.

 

Could I adjust the front tire as mentioned to avoid the diff problem?

 

No, because using a 26" diameter in the front of the 996 causes rubbing problems. I would use a 315/25 19 rear tire depending on which size and offset wheel you are using.

 

I had no rubbing with the mentioned size tire on the front of my car

 

hey boca996tt, can you post the exact tire size/brand you were running. Also do you happen to have any pics of that setup. I think a bit higher profile looks good like the 997 gt2 has in the rear.

 

It was continental sport contact 2 size 235/35-19 & in rear I had 295/30-19.. rear tires were stretched a bit to fit my 11.5 rim

 

Ruff, what issues are you having with the 25 series tire (comfort, curb, looks)?

 

Well, I have bent one rim w/ regualr city driving. I just like the higher profile look, feel i have more "cushion" with a higher profile. Lastly, more availability and cheaper to buy tires that are 295/30 or 305/30. Not a huge deal, but if I could safely run the 305/30 with 235/35 up front I would do it.

 

go on tirerack.com & look at the height of each tire.. I dont think the sizes u mentioned will work.. think the rear will be to tall

 

A good tire size calculator here

http://www.miata.net/garage/tirecalc.html