RetroGuy

Is it frowned upon to change tire size on the C4 stock rims? Anyone try a slightly taller tire? Is the next size taller too tall and might rub?

Joe K

Not sure what tire you are wanting to put on what rim. My 85 came with 255/50vr16 and now has 89 wheels with 275/40vr17. Not having any rubbing problems. But the rim is taller and the tire shorter than oem.

HTH

Joe K

tequilaboy

It is frowned upon by many, but can be done. The only practical taller tire size is 255/50R17. Unfortunately, not many tires are available in this size, so choice is limited.

Here's an example 255/50R17 rear fitment:


I run the same tire on the front, but I don't think I have any good photos to show the front fitment.

Mr. Peabody

Well I believe that Nitto makes tires in 275x50x17 if you want to go taller than the stock 275x40x17. I've never come across anyone running them. Are you trying to fill the wheel well opening?

RetroGuy

I was kickin' around the idea of filling up the wheel well a little more, and also giving my total ground clearance a 1/4" to 1/2" lift. I'm good on tires for about another year, then out comes the wallet.

tequilaboy

With the Nitto 555 G2, you could possibly run a staggered set-up with a 255/50R17 front (~27") and 275/50R17 rear (~28"). 28" drag tires have been used by a few guys. I still think 255/50R17 (~27") all around is the better compromise.

https://www.nittotire.com/passenger-...formance-tire/

JoBy

295/50-16 Hoosier DR2 on the rear and stock 255/50-16 up front. Both on stock 9.5" wide rims.
The rear is a tight fit with a 1" raise. I had some minor rubbing on the inside on the inner plastic fenders.

MatthewMiller

This is not a good idea unless you never plan to steer the car. You will raise the roll center heights and possibly encounter clearance issues with lots of steering lock, or brake or power application. I strongly recommend staying within the OE tire diameter range of 25.5-26.2". There is no good reason to do this.