So I just installed a set of 295/35ZR18 rear tires on 8 series specific 10.5" wheels and unfortunately tires rub when hitting a bigger bumps on the freeway.
They are not rubbing alot so I am thinking maybe roll the fenders slightly or just bite the bullet and go for 285/35ZR18?
Wanted widest tires possible to gain more traction, close to 600 hp really lights up the 275/35 at virtually any speed below 60mph, and I do have an LSD.
I have used a baseball bat to roll fenders but maybe this cheap fender rolling tool would work: https://m.ebay.com/itm/Roll-Fender-R...kAAOSwjqVZCvOK
Even if you bump down one width, consider an alternative tire compound. On my twin turbo M70, I run 315/30/17 drag radials. DOT marked for inspections / street use. I can certainly still spin them if I desire, that car being half the weight of an E31 -- but doing so is more a display of poor driver control than inadequate traction! Of course, that car also never leaves the garage on other than on nice sunny days. I wouldn't want to drive those tires cold or wet, so it's not good advice for a daily driver, etc.
Cheers, John
Tire widths are not consistent between manufacturers. Example: a 285 BF Goodrich will not rub on my stock 93, but a 285 KUHMO will rub all day long. Might want to stick with 285's, since you are only talking about 10mm increase in width. The HAMANN car that I saw in Germany a few years back, actually hade a 305 on it.
'93 850Ci - Mineralweiß Metallic
2001 740iL - Titansilber
ALPINA B7 -Alpinweiß III
...the price of cool ain't cheap!
Went with Michelin Pilot Sport A/S 3+, 285/35ZR18 Rear and same 245/40ZR18 Front.
Why all-seasons? Wouldn’t a summer-only tire give better grip/control?
I also have the Michelin Pilot Sport A/S 3+ on 4 corners of 3 cars - 840, SL55, and A8. Love them in warmer weather, stick very well. I DON'T use them in snow. Heard from several people they are pathetic as snow tires. But they do grip very well when warm (drove the 840Ci up the TN side of Tail of the Dragon with these - very pleased with traction).
Gary
Last edited by Gary Knox; 01-05-2018 at 12:50 PM.
Gary Knox
'97 BMW 840 Ci
'03 MB SL55 AMG
'07 Mini Cooper S hatchback
'09 Aston Martin DB9 Volante
'13 Audi A8
'90 MB 560 SEC and '94 Porsche 928 GTS recently departed but long enjoyed
50 or so others over the past 70 years of driving
I run 295/35 18s on my CSi, no rubbing at all. Looks fantastic and I love them!
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1994 850CSi, 2007 M5, 1990 VW Westy Syncro, 2010 e61 Touring Manual
These are Racing Dynamics e31 specific wheels.
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Last edited by Major Cheese; 01-12-2018 at 06:00 PM.
1994 850CSi, 2007 M5, 1990 VW Westy Syncro, 2010 e61 Touring Manual
What front size do you run? A little surprising how high the body is over the tire. With 285/35/18, mine is only roughly 1/4” above the tire....maybe it’s just the angle. Looks great.
This article list the tire size for the Racing Dynamics K55. Sorry for the small print.
RD K55 Article Tire Size.jpg
1994 850CSi, 2007 M5, 1990 VW Westy Syncro, 2010 e61 Touring Manual
What’s the offset on the RD wheels? Would the 295’s work with M-Parallels?
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I don’t know the answer to either of your questions. Maybe someone else here can chime in?
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1994 850CSi, 2007 M5, 1990 VW Westy Syncro, 2010 e61 Touring Manual
Important critical tip: Make sure you heat the paint before extensive fender rolling. Otherwise you'll crack the paint like I did.
Here's some picts. 2011-09-17_18-01-25_199.jpg They're 315/35ZR-18 Michelin Pilot Sports.
I'll look in my notes to see if I can find the offset, hell, it's been 7 years since I've done that.
Last edited by Imndeep; 01-21-2018 at 02:35 PM.
Wow. This is super hot
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