Offset help

[Petrucci]

Just need some clarification or confirmation that my calculations are correct. I have some OZ Mito's picture in my signature.

The stock specs were:

17x8 Offset 37mm

If I measured correctly the stock lip is 1.5 inches. Now, I bought some replacement outer lips to make the wheels larger. I opted for a 17x3.0 lip for the rears.

Now when I measure the them they are now 17x9.5, so for every inch you subtract 12.7mm from the offset.

So now if I did this correctly. The new size and offset of my wheels are:

17x9.5 Offset 17.95 or rounded up to 18

And any idea what tire might be able to run with these. I'm thinking 225/45/17?

Does that sound right? Thanks!

[M Quick]

I'd agree with you on your calculations there regarding offset.

On the tires however, 225 on a 9.5" rim is very narrow.
225's are usualy ran on 7.5" or 8" rims, just to compare a 245 on a 8.5" rim and 275's on a 10" rims makes it look flat and nice (+/-10mm).

But if you're after the german style with the stretched tires then 225's is nice. But you will show alot of the edge of the lips.
Take it to a place who knows how to put such a narrow tire on such a wide rim, some may not even do it, as they don't have the knowledge on how inflate them once they are on the rim.

[Petrucci]

I'd agree with you on your calculations there regarding offset.

On the tires however, 225 on a 9.5" rim is very narrow.
225's are usualy ran on 7.5" or 8" rims, just to compare a 245 on a 8.5" rim and 275's on a 10" rims makes it look flat and nice (+/-10mm).

But if you're after the german style with the stretched tires then 225's is nice. But you will show alot of the edge of the lips.
Take it to a place who knows how to put such a narrow tire on such a wide rim, some may not even do it, as they don't have the knowledge on how inflate them once they are on the rim.

Thank you for the reply!

I more of a meat guy and always will be actually but. I don't think I can fit these suckers on my car unless I add a light to moderate stretch to them. I know I will have to at least flare my fenders lightly.

I will be doing a test fit most likely this Friday; just got my center pieces back from powder coating today. I hope I can with a decent set of tires :crosses fingers:.

[M Quick]

Yeah i understand the issue, i have no idea how wide tyres an e36 swallows in the rear, but i guess it's around 245 or 255 atleast? Though your problem will likely be that the edge/lip will hit the fenders if you go too wide.. So i get why you wanna use 225's in the rear!


Those are awesome wheels btw! Gonna look badass with a little stretch imho.