Reply to "18x12 narrow body backspace?"

bosswrenchMember

The tightest clearance area is not usually the subframe rails but the rear end of the upright's lower pivot shaft and its nylock nut. And in operation, tires deflect as much as 1/2" in hard cornering, as shown by fender-cams during pro races, even with 50 psi inflation pressures. One ex-Pantera owner carefully measured everything, bought new tires for his upgrade and managed to record 3.0 laps at a 'Vegas open track event before one tire sidewall moved enough to tear it open on "something", hurling the car off the track. Going home 550 miles on a flatbed trailer is not the way one likes to close a weekend event.... IMHO, 1/4" is not enough tire clearance, if the closest hard point has edges and you actually use those giant meats. Just a thought.

11/17/093:39 PM

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