maximum tire width
6th Gear Member
Joined: Sep 2006
Posts: 11,005
From: Canton, Georgia
A 305 is probably as wide as I would go....but since different tire manufacturer's tires actually measure in size differently, I'd choose a good tire as others have mentioned and then look at the dimensions to see how they measure up.
ex: A buddy of mine bought a 295 in one brand for his vette that measured the same as a 305 in another brand.
ex: A buddy of mine bought a 295 in one brand for his vette that measured the same as a 305 in another brand.
6th Gear Member
Joined: Jul 2008
Posts: 12,259
From: Acworth, GA
A 305 is probably as wide as I would go....but since different tire manufacturer's tires actually measure in size differently, I'd choose a good tire as others have mentioned and then look at the dimensions to see how they measure up.
ex: A buddy of mine bought a 295 in one brand for his vette that measured the same as a 305 in another brand.
ex: A buddy of mine bought a 295 in one brand for his vette that measured the same as a 305 in another brand.
5th Gear Member
Joined: Jul 2006
Posts: 4,491
From: New Orleans
If you're doing it for looks, then by all means jam whatever you can in there, but if it's for performance, I really don't think anything bigger than a 275 out back is necessary. My drag tires are 275/60/15s, but my street tires (all about looks) are 28x12x15. That's as big as I could go without cutting the bump stop brackets.
3rd Gear Member
Joined: Jul 2008
Posts: 963
From: Tampa, FL
you can probably get away with 315s, but i would stay at 305s.
You can always send your wheels to weldcraft get them widened to 12" and run 335s.
That is what I am having done with my super snake alcoas!!
You can always send your wheels to weldcraft get them widened to 12" and run 335s.
That is what I am having done with my super snake alcoas!!
5th Gear Member
Joined: Jul 2006
Posts: 4,491
From: New Orleans
That's gonna be a tight squeeze between the fender and the wheel well. I haven't seen anyone fit better than a 325.
6th Gear Member
Joined: Sep 2006
Posts: 11,005
From: Canton, Georgia
Joined: Jan 2011
Posts: 15
From: Oklahoma
What?? Of course a wider tire provides more traction. The larger the contact patch the more friction the tire creates between your vehicle and the road surface. Perhaps a trip back to physics class is in order.
I will agree that switching to a softer compound at this point makes more sense that stuffing something too large under the rear fenders.
T.
4th Gear Member
Joined: Feb 2008
Posts: 1,465
From: Pensacola, Florida
You can fit a 335/30/18 Nitto 555R drag radial on a 18x11" +45mm offset wheel (i.e. - SVT GT500 rim widened by Weldcraft) with no modifications. This has been confirmed on a few Shelbys at SVT performance forums.
I'm going to use Mickey Thompson 345/35/18 ET Street drag radials, and will only require the removal of the shock dust cover/boot. Here are a few threads about the top.
My personal 18x11" thread
ModularFords - Nitto 335/30/18
SVT Performance - 335/30/18
SVT Performance MT ET Streets 345/35/18