Thread: Size 18 rims 2005 gtp how tall/wide can i go?

what size are your 18s. the width.

Run 245/45/18. You don't want taller tires than stock for several reasons.

I'm sure you could sqeeze a 255/40/18in there if they even made a tire that size that was cheap enough, but like said a 245/45 best suits that rim size.

i am currently running 245/45/18's and have about 3/4 inch clearance to the strut in both directions. the overall tire hight is 26.1 inches. you could probably get away with a 255 or 265/45 but it would be tight. 8.5 inch wide rim

Originally Posted by James8026

Had 235/ 40. But that left me with a bent rim :-/ but it was repairable for $100 michigan roads are harsh

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Because 235/40 is way too short. It's only 25.4" tall, where 245/45/18 is 26.68" tall, and that is the height you want to stick with.

As for your question on rebuilding the supercharger... why do you think it needs rebuilt?

As for your question on the pulley swap, you have much reading to do. I don't have the thread at hand, but you need to read the "safely modding your 3800" thread.

You can't just slap a pulley on and call it good.

As for the interior of the supercharger they are good to go. Only thing you might have to change is the coupler, and that is only if it sounds like rocks rattling at idle.

Originally Posted by James8026

No reason im pretty inclined i just like everything to be new and smooth if it can. it has 126000 miles not sure how bad interior parts wear in them. Also ive heard to use the 3.4l performance pulley

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Read this first.

Safely Modding Your 3800 Powered Car!!
http://www.grandprixforums.net/showthread.php?t=17482
Safely Modding Your 3800 Powered Car!!