20x11 +56 offset

smokedbystang

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Does anyone have pics of a 20x11 wheel with a +56 offset? I have a set of these for the rear of my 14 and want to put on either 305/35 or 315/35 tires and would like to know if/how they fit (flush and/or stick out of the fender). Hoping these fit without any other mods to the suspension. I am at stock height. Thanks.
 

Catmonkey

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If you lay a straight edge against the side wall, you'll probably have about a 1/8" gap between the straight edge and the fender. I've been playing around with this stuff for a while and it's been my experience that the cross section width will be the same with either tire on that rim. Here is a 295/35 and a 325/30, both mounted on an 11x20 rim.

29520and20325_zpsqijzknap.jpg


The tread will have less clearance at the lip of the fender, so you could have some issues on a lowered car. My sig pic has a 325/30-20 on a 20x11.5" rim with 61mm of offset.
 

smokedbystang

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merkyworks

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I'm running 20x11 with 58mm offset and 315/35 tires.
2018-03-04 at 16-40-47.JPG 2018-03-04 at 16-47-57.JPG

Tires tuck up inside the fenders no issue but when going up driveways at an angle I get a little rub on the inner frame rail. Catmonkey has a thread on here where he has already been down this road, the 315/35's are 28.7" tall which creates some issues on off camber stuff and switching to 325/30's are only 27.7" tall which helps a lot. Once these tires are done I plan to switch to 325/30/20's, as Catmonkey has shown above a 325/30's section width isn't any wider than a 295/35.
 

Silver Talon

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I'm running a 20x11 CS-3 wheel with 50mm of back spacing, with a 325/30 on it, lowered on Eibach pro-kit springs, and have no issues anywhere with rubbing or sticking out any. No clearance issues on the inside either.
 

merkyworks

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Unless my understanding of how wheel offsets work I sketched out what all these different offsets mentioned look like. Top is what a OEM SVTPP wheel is for comparison, the vertical dashed line is the rotor/wheel mounting face.

Annotation.jpg
 

smokedbystang

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Thanks for all the info. I'm trying to get a good idea of what fits without having to alter the bump stops or any other suspension part for now.
Unless my understanding of how wheel offsets work I sketched out what all these different offsets mentioned look like. Top is what a OEM SVTPP wheel is for comparison, the vertical dashed line is the rotor/wheel mounting face.

View attachment 1617888

Sent from my LM-G710VM using the svtperformance.com mobile app
 

Catmonkey

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I really ended up with a 64 mm offset, but I have a 1/8" spacer on the rear at present. The inboard valve stem (2 piece wheel issue) does come in contact with the shock without it, or at least the cap does. I need to find a shorter TPMS valve stem, but it's not a high priority item at this point.
 

LuuisHernandez

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I have an 11” with a 52mm with 305/35/20 and I’m flush. I’m lowered pretty far and it barely tucks into my fender.


Sent from my iPhone using svtperformance.com
 

Pribilof

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I ran 20x11 +56 with 325/30R20 MPSC2 tires. The fit was perfect both stock height and lowered on BMR drag springs. Pics in the "SOLD" link in my signature.

315/35 are 1" taller so stock height will be fine but you'll rub a bunch if you lower it.
 

P5Boy

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