Wheel and tire size question

[jeebus87]

To make a long story short, I recently had one of my CSL replica wheels replaced along with the tire and sensor when the wheel repair company lost my original. Problem is that I was in a rush and told them the wrong tire size (265 35 19 is what they bought, 265 30 19 is what was on there originally).

Question is, will I have any issues running 265 35 19 on my 3.0si coupe? I have an OEM suspension setup with sport springs and B4 bilstein replacement shocks.

[jeebus87]

Bump.

[XMetal]

The rotational differences will cause some extra wear on your differential. I would get the tire replaced if it was me.

[dc_wright]

Originally Posted by jeebus87

To make a long story short, I recently had one of my CSL replica wheels replaced along with the tire and sensor when the wheel repair company lost my original. Problem is that I was in a rush and told them the wrong tire size (265 35 19 is what they bought, 265 30 19 is what was on there originally).

Question is, will I have any issues running 265 35 19 on my 3.0si coupe? I have an OEM suspension setup with sport springs and B4 bilstein replacement shocks.

That's too large a diameter tire and if you only run that size on one corner it will cause your diff to over work if you have it on the rear. If you put it on the front the difference in rotational speed will push you close to the point where stability control thinks one of your tires is sliding and it will potentially be kicking in all the time.

[jeebus87]

Ok. I would of course get a matching 35 on the other rear wheel. Is it still worth getting the 265/30 size anyway for both tires? Thanks guys

[jeebus87]

Bump bump. Can I run 265/35/19 in the rear (on both tires)? Looks like it would be a 5% difference on the speedo from stock 18" wheels and from 265/30/19 tires. Anyone have experience with this size and, more importantly, would you do it? Just looking for some more opinions.

[Steeler]

Depending on which tire you choose there could be a 1" overall diameter difference between your OEM 265/35/18 and the 265/35/19.
This will obviously cause the speedo to read wrong and possibly other systems will be affected.

If this change only caused the speedo to read wrong I would go for it.
The additional height will raise ride height by 1/2" but also close the tire to wheel lip gap by 1/2"

[Westersund]

My advice would be buying 2 new rears in the correct dimensions. Take this as a lesson learned for making a decision in a hurry. Shit happens.

If there's too big of a difference in circumference between the front and rear tires the ABS unit will act out. That's no good. The speedo is the least you should worry about.

[jeebus87]

Okie. Thanks for the words of wisdom. I'll buy new (correct) tires and sell the other.