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Old 08-12-2018, 10:40 PM   #29
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Originally Posted by Norm Peterson View Post
The "track set" - pictured in my sig - is 285/35-18 MPSS on 18x11 F14 Forgestars, all four corners. What the 5th gen 1LE wore out back had some influence here. I put "track set" in quotes because they see at least as many street miles as track miles in travel to & from the track plus a bit more if I get lazy about changing them. I don't quite have to run a spacer up front, but the strut-side clearance is pretty tight (around 1.5 mm with the new Ford Racing hubs) and I'd need some spacing for anything wider than 285/xx in 18".

The other set, which so far has only seen street duty, is 265/40-18 MPSS on 18x9.5 SVT/Ford GT500 wheels. If I hadn't already had the 9.5" wide wheels, I'd have gone with 10's for those.

For reference, the car came with 235/50-18's on 18x8.5's.

What's the widest size wheel that'll fit your Mustang without spacers?
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Old 08-13-2018, 08:33 AM   #30
Norm Peterson
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In 18", 18x11 up front, and I think Vorshlag got 18x12's to fit out back. With either 18x11's all around or the 11/12 stagger and no spacers, you'll end up with significantly different front vs rear offsets, maybe more than 15 mm, and front to rear rotation will not be possible.

Up front, there isn't room for any more than 11 without getting into custom bodywork. In the following picture taken just after fitting the 18x11's there is barely 0.045" wheel or tire clearance to the strut with the camber shown (about -2°), and on one side of the car it took an 0.025" DIY-fabbed spacer to get that much. With 19" or 20" wheels you'd gain small amounts of inside clearance, but not nearly enough to allow even 11.5" wide wheels without at least another quarter inch showing up outside the sheetmetal.

'08 GT coupe 5M, wheels, tires, pads, fluid, a few suspension mods . . . still almost at stock height
'10 LGT 6M (hers) and an '01 Maxima 5M (spare)

Last edited by Norm Peterson; 08-13-2018 at 08:48 AM.
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Old 09-29-2018, 12:23 AM   #31
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i auto crossed for a couple years currently setting up with 19 by 10, 15 offset front to clear coil overs, and a 35 mm offset on the rear 285 35 19 re 71 Bridgestone's stock springs you could go 20 offset front
JPSS Blackmagic 32mm rear swaybar caster locks and radius arm inserts, Ride Tech 2coilovers JDP upper control arm bushings BMR lower knuckle bushing Bo White throttle body Cold Air Inductions c.a.i.MightyMouse Catch can ,npp short throw shift and lifetime xm3.91 gears Spohn del-sphere toe link and trailing arms Prothane subframe bushings Verona XO wheels/ccs sp16a track set, mild to wild, acs ground effects BTR stage 3 cam and kooks longtubes with high flow cats
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