Quick question, I'm thinking of getting aftermarket wheels that have the following specs:

18x8.5 +26
18x9.5 +30

Would these tires
-245/40/18 (Front)
-275/35/18 (Rear)
be right for a coupe?

David
04 Ivory Pearl G35C 5AT Premium 18"
Z-Tube/Popcharger, Pioneer AVIC-N1

 

Fronts are perfect. In the rear, go with a 40 series tire. That will keep the stagger and your VDC happier. If you want to track your car and get rid of a little understeer, go with 255/40 in the front.

 

Thanks for your reply.

What would the effect of having 275/35/18 be on the car?

Also, just wanted to double check if you guys knew if the offsets were okay for the Coupe? I know that the typical offsets are +30 Front and +35 Rear, but the set I'm looking at is +26 Front and +30 Rear.

Thanks again!

David
04 Ivory Pearl G35C 5AT Premium 18"
Z-Tube/Popcharger, Pioneer AVIC-N1

 

Most 275/35 tires have the same overall diameter as 245/40. In the stock configuration, there is about a 1" difference in the coupe. Your car's VDC is set up with this stagger in mind. If you have the same diameter on the front and rear, the computer may think that your rears are slipping slightly because they should be turning at a slightly slower rate compared to the front. You'll also get a little more sidewall which will help with potholes.

Those offsets should be fine. If I were you, I would look into the lower +20's in the front and rear to have the wheels and tires flush with the fenders. You won't have any issues with rubbing (unless you go into the teens) and your car will look much more aggressive.

 

Stay with the 40 aspect ratio front and rear to keep the stagger. The offsets you mentioned are perfect IMO. They will push the wheels out farther than the stock 18s. Nismos are +25mm front and +30mm rear, and I love the look.

Lou



326458-IMG_0030.jpg

 

Thanks for the tips guys. Always good to know that when I have a question, there's someone on here that's got the answer.

David
04 Ivory Pearl G35C 5AT Premium 18"
Z-Tube/Popcharger, Pioneer AVIC-N1