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Front and rear wheels
Everyone, I know there is a lot of information regarding this topic as I have been researching this for several days. My Mustang with stock suspension needs a new set of tires. My dilemma is I want to run a 255mm tire in front and at least a 285 mm to a 305mm tire for the rear. I would prefer a 19 inch deep dish wheel with modern style multiple spokes in Black or Black chromium color. I found a set of wheels made by XXR wheels. They are 530D Chromium Black http://www.xxrwheels.com/wheels/xxr-530d These wheels come in 19x9, 35 mm offset, 6.375 back spacing or 19x9, 20mm offset with 5.75 backspacing and only a 19x10.5., 20mm offset with 6.50 backspacing. Will the 19x10.5, 20mm offset, 6.5 backspacing with 285mm or 305mm wide tires fit the rear and Will I need to widen the fender for clearance? I would presume I can run the 19x9 35mm offsets in the front. However can I run the 20mm offset, 5.75 back spacing with a 255mm wide tire offset and still clear the whee well. Any advice will help air I really like these wheels. |
Originally Posted by Hansona15
(Post 8623717)
Will the 19x10.5, 20mm offset, 6.5 backspacing with 285mm or 305mm wide tires fit the rear and Will I need to widen the fender for clearance?
I would presume I can run the 19x9 35mm offsets in the front. However can I run the 20mm offset, 5.75 back spacing with a 255mm wide tire offset and still clear the wheel well. Since this is the 'Handling' section, I'm going to question why you'd want to go with such extreme amounts of stagger, particularly in the tire sizes. It'll understeer more heavily in the dry, and there will be greater potential for throttle-caused oversteer (or even a spin) in the wet. This picture should be worth a few words . . . the rear wheel and tire are within about 1/8" of being flush with the outside of the fender (as shown, the car is NOT lowered). Your rear wheel will be over an inch further out and its 305 tire's sidewall will be over 1.5" further out. The tire shoulder will be somewhere between 1" and 1.5" further out. https://www.mustang6g.com/forums/pic...pictureid=4701 Norm |
Front and rear wheels
Hansona15, Norm is right about putting "offset" to proper use. On my 2014 Mustang GT, upgraded fully adjustable rear suspension, but only dropped half of a inch, here are my numbers: on the 275/40-19, and 285/40-19 I use a +47.5mm offset, on a 10" rim. On the MT 305/35-19, I use a +56mm offset on a 11" rim. Lower control arms have "not" been relocated and there is no clearance issues. As an aside, you can use a +35-50mm offset with the 275 and 287 and be safe. I am also playing with the idea of a 295/35ZR19 Continental Sportcontact 6, on a 11" rim. I will experiment with a +52mm offset rim to see where that puts the rubber, both inside and outside. Remember, tire "tread width" also must be taken into account because this influences your offset numbers to get you your desired "look."
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Thanks
Norm and Buck Sargent, Thank you for the replys. So this whole endeavor started because the stang needs a new set of shoes. I originally wanted to go with a wider tire and was disappointed when I found out the widest tire that would safely mount to the OEM 19x8.5 wheels was a 265. I don't want to spend a grand on tires and still not achieve the staggered look and increase my traction. Power wise will anything wider than a 285 really increase any traction without modifying my suspension. I was looking at 19x10.5 and 19x11 wheel just for mainly looks and potentially run a 305mm. However sounds like I need go with a 19x10 (with your suggested range offset), a 285 rear tire, and not entertain any thing wider. Any suggestions on tires? The stang is not daily driver and only sees rain if a rogue storms happens to catch me. |
I can give you a data point with respect to 285's in the wet - chosen wisely you have nothing to fear.
↓↓↓ 3rd & 4th gear, with full-on WOT at times. 285/35-18 Michelin Pilot Super Sport tires on 18x11 Forgestars (all four corners). 315-ish HP/325-ish torque 4.6L (FRPP cold air & tune). There's a little excitement starting shortly before 11:00 that gives a better indication as to how wet it really was. Norm |
That’s a cool video. Are you racing or putting in track time. Is this hobby that I can pick up? That looks like a lot of fun! |
Originally Posted by Norm Peterson
(Post 8623823)
I can give you a data point with respect to 285's in the wet - chosen wisely you have nothing to fear.
↓↓↓ 3rd & 4th gear, with full-on WOT at times. 285/35-18 Michelin Pilot Super Sport tires on 18x11 Forgestars (all four corners). 315-ish HP/325-ish torque 4.6L (FRPP cold air & tune). There's a little excitement starting shortly before 11:00 that gives a better indication as to how wet it really was. https://www.youtube.com/watch?v=g6brVFxPSPw Norm I am only going to run a 285mm. Should I buy an 19x11 rear rim or a 19x10? I am thinking that a 19 x 11 would handle better? |
HPDE, which is not a competition and where there is no official lap timing. You drive no harder than you're comfortable doing - which does not necessarily imply that you're driving all that much easier than you perhaps could be.
You start out as a novice with in-car instruction running with other novices and their instructors. Eventually, most people move up to an intermediate status (driving solo, where passing rules are apt to be relaxed a bit) and from there to advanced (passing rules are even looser but depending on the track day entity may still require a point-by). Here's a couple of laps in the dry, including one of my better efforts. This time I had some GPS datalogging capability. Norm |
Front and rear wheels
Hansona15, all this information applies to my 2014 Mustang GT Premium . The best "street set-up" so far , in a staggered configuration, is: up front:Continental Contisport Contact 5P, 235/45ZR19, on a 9" rim. In the Rear: Michelin Pilot Super Sport,285/40R19, on a 10" rim. When I wanted the "Squared Away" look, I ran 255/45-19s, on a 9"rim, on all four corners. When at a NMRA event, I stay with the front set-up, but go to the Mickey Thompson ET Street SS, 305/35-19, on a 11" rim. When just testing, at the local drag strip, I will use the NITTO NT05, 275/35ZR19, on a 10" rim. P.S. check my past post about "offset rims." Offset is very critical.
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Originally Posted by Hansona15
(Post 8623836)
Norm, I am only going to run a 285mm. Should I buy an 19x11 rear rim or a 19x10? I am thinking that a 19 x 11 would handle better? You need to consider both front and rear wheel and tire sizes when looking for the better handling choice, and your choice(s) should be able to match the rated load for the OE tires at their recommended inflation pressure without deviating too far from the door-sticker psi number (yes, there's a procedure for finding out what the psi in a new tire size should be). I wouldn't ever suggest going 11" wide in the rear without going at least 10" wide up front (I wouldn't personally go below 10.5" front with 11" rear, and I'd still pick 11" fronts over 10.5's for 11" rears). Norm |
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