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Cobra Forums
SVT Shelby GT500
Update: Stock SVT rims widened to 11.25" wearing 325 Dunlops. Job completed
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<blockquote data-quote="455HO71" data-source="post: 14799680" data-attributes="member: 136786"><p>Evasive- With respect to the rim width- I did the calculations based on what my friend (forum name Enormous- grey Shelby in pic) had widened his to. He did 11-3/8" running the Michelin Sport Cup Pilots at the same size. These are the only 2 tires you can buy in this size and both are exactly the same dimensions. The Dunlop is a tick taller than the Michelin but both don't run narrow. The stock SVTPP rims had a slightly diff backspace on them so I ran a smidge narrower at 11.25". Without a spacer, I was rubbing at the top of the wheel well so I used a 5/16" spacer and with the shock boot also cut off, it turned out perfect. The tire is nicely tucked just under the top wheel well lip and doesn't stick out at all. We adjusted my adjustable panhard to get everything centered perfectly once done. The only other thing that I had to do was change the wheel studs because of the use of the spacer. I went with ARP 3.115" studs and believe it or not, the stock lug nuts JUST fit tightly.</p><p></p><p>I haven't tried to see how the hook up was with these tires (Dunlop Sport Maxx) because I've only taken it out once (these pics) and the temp was only in the high 50's that day. I'm thinking I will have better luck hooking than with the Goodyear Supercar F1's that were on there. Either I had a couple of bad tires or they are generally crap for hooking. Even touching those tires, you could feel that they seemed harder than they should have been....like hockey pucks! lol.</p><p></p><p>Anyway, if anyone is considering widening their wheels- Weldcraft in Livonia Michigan is superb. I dealt directly with the owner who has been doing this business for 25 years and is one of only a couple of shops that do this in the remote vicinity of where I live. Even when I went to get tires mounted- the tire shop guys kind of spouted some negative comments like saying that any widened wheels they've dealt with always leak and are never straight. They were surprised how straight they were when on the balancing machine.</p></blockquote><p></p>
[QUOTE="455HO71, post: 14799680, member: 136786"] Evasive- With respect to the rim width- I did the calculations based on what my friend (forum name Enormous- grey Shelby in pic) had widened his to. He did 11-3/8" running the Michelin Sport Cup Pilots at the same size. These are the only 2 tires you can buy in this size and both are exactly the same dimensions. The Dunlop is a tick taller than the Michelin but both don't run narrow. The stock SVTPP rims had a slightly diff backspace on them so I ran a smidge narrower at 11.25". Without a spacer, I was rubbing at the top of the wheel well so I used a 5/16" spacer and with the shock boot also cut off, it turned out perfect. The tire is nicely tucked just under the top wheel well lip and doesn't stick out at all. We adjusted my adjustable panhard to get everything centered perfectly once done. The only other thing that I had to do was change the wheel studs because of the use of the spacer. I went with ARP 3.115" studs and believe it or not, the stock lug nuts JUST fit tightly. I haven't tried to see how the hook up was with these tires (Dunlop Sport Maxx) because I've only taken it out once (these pics) and the temp was only in the high 50's that day. I'm thinking I will have better luck hooking than with the Goodyear Supercar F1's that were on there. Either I had a couple of bad tires or they are generally crap for hooking. Even touching those tires, you could feel that they seemed harder than they should have been....like hockey pucks! lol. Anyway, if anyone is considering widening their wheels- Weldcraft in Livonia Michigan is superb. I dealt directly with the owner who has been doing this business for 25 years and is one of only a couple of shops that do this in the remote vicinity of where I live. Even when I went to get tires mounted- the tire shop guys kind of spouted some negative comments like saying that any widened wheels they've dealt with always leak and are never straight. They were surprised how straight they were when on the balancing machine. [/QUOTE]
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SVT Shelby GT500
Update: Stock SVT rims widened to 11.25" wearing 325 Dunlops. Job completed
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