315/35/17

[gostraight]

where to buy street tires for my GT2

It now rides on slicks 315/35/17 rear and 275/45/16 front. I'm considering getting a set of street wheel/tire package same sizes as above but 18 ' rims....Tire rack and discount tires do not carry anything like it...
Please help...

[TWork]

I think the size you might want to try in 18s is 315/30/18. Tirerack lists 12 tires (some competition) in that size.

[Cory M]

see Kumho and BFG for 315/17's

[RarlyL8]

Do you want to retain the same tire hieght, but using 18" rims?
If so you will want to use 265/35 and 335/30 tires on 18" rims.

Using 315/30 will result in a 1/2" lower sidewall height.

[gostraight]

Originally posted by RarlyL8
Do you want to retain the same tire hieght, but using 18" rims?
If so you will want to use 265/35 and 335/30 tires on 18" rims.

Using 315/30 will result in a 1/2" lower sidewall height.

I was hopping that going to a larger diameter rim( (18" from 17") will add an inch to the OD, but getting a 30 series tire will take it back down by 1/2 inch. Is that correct? So I will end up with pretty much the original OD... The way the car sits right now: it has plenty of wheel clearance ; definitely don't want more, but I could probably increase the overall OD by up to 1.5".

The rear/front (as off right now) are~ 24" OD

[RarlyL8]

No, going from 315/35-17 to 315/30-18 will reduce the TOTAL height by 1/2". You won't end up even, you lose 1/2".

315/35-17 = 12.4"W x 25.7"T
315/30-18 = 12.4"W x 25.4"T = you lose 0.3"

335/30-18 = 13.2"W x 25.9"T = you gain 0.2"

[Shawn 357]

Keep in mind that if you are going to change the alignment for the street (less negative camber) it will have an effect on how much clearance you have.

[gostraight]

very true Shawn, still I got plenty of clearance there... iam considering getting a new GT2 body package from Gety... The current body on the beast is pretty crappy fit and finish... (race Quality.if you know what I mean)... anyway I was looking @ the huge rear flares 3" larger plus the 1' extensions...... Does anybody have any experience with this parts?..
I'd hate spending mega$ and end up with the same poor quality...

Thanks

[gostraight]

ok, I remember what my point was..... The Gety catalog lists the Gt2 wide fenders, plus extensions as accommodating 28" OD...

315/30/18 with an OD of 23" would leave too much wheel clearance making the wheels look to small....
Any thoughts?