m6- will 315/35/20 fit

[tampaturbom3]

I already know from searching that 315/30/20 will fit but I see lots of 315/35/20 choices.... so I'm wondering if anyone has tried them?
also, since our cars' speedo is showing faster than actual, maybe the extra height of the tire would make it more accurate...

has anyone tried the 315/35/20? if so, which brand?

these 295's P-Zero's stink... I spin like crazy even when not hammering the car.

[melvyn]

Originally Posted by tampaturbom3

I already know from searching that 315/30/20 will fit but I see lots of 315/35/20 choices.... so I'm wondering if anyone has tried them?
also, since our cars' speedo is showing faster than actual, maybe the extra height of the tire would make it more accurate...

has anyone tried the 315/35/20? if so, which brand?

these 295's P-Zero's stink... I spin like crazy even when not hammering the car.

I think your pushing a 315 on a 10.5 wheel to be honest, if you go for that tyre the ride will be 22 mill higher and look a bit slammed, speedo will be way out as well,see pic below



A 30 profile on a 315 would be much better with 6 mill ride height gain



A 305/30 would be perfect for the 10.5 wheel with a 3 mill ride height gain and minimal loss on speedo.
Have you not tried MPSS tyres, they offer great traction and hard to beat for fast road use.



Please note

Offsets have been taken from the 601 20 inch wheels, but will give same results for your offsets

[TopEnd]

315/35/20 broken down:

315=fine
35= will make the overall wheel too high, and it will look stupid
20= obviously is your wheel size

[M6-Coupe]

It's such a bad idea at all!
305/30/20 is a good idea BTW

[Downfourit]

I ran a 305/35/20 and it looked fine on a 20X10 with a 265/35/20 up front on a 20X9. If you want traction, you're gonna need a softer tire like the 555R or the R888, Sport Cup 2, etc. Going a little wider but staying with the medium/hard compound tires isn't going to do much when you're pushing 650+wtq on a RWD car.

[tampaturbom3]

uhg...
I figured the extra patch from the 315/35 vs. 305/30 would help out the grip some...
my speedo (with the OE tires) is showing about 5% faster than the GPS is showing... so the larger dia was going to help solve that problem
I was mostly worried about rubbing (either the fender lip or some component inside- like the shock or spring).

I may just give the new Michelin PS4 a try and see how it goes.
I drove "drag radials" on my 750hp supra (and on my turbo m3), but once it rains (and this is my DD), those tires are flat dangerous... so I don't want to do that w/ this car.

[M6-Coupe]

Originally Posted by tampaturbom3

uhg...
I figured the extra patch from the 315/35 vs. 305/30 would help out the grip some...
my speedo (with the OE tires) is showing about 5% faster than the GPS is showing... so the larger dia was going to help solve that problem
I was mostly worried about rubbing (either the fender lip or some component inside- like the shock or spring).

I may just give the new Michelin PS4 a try and see how it goes.
I drove "drag radials" on my 750hp supra (and on my turbo m3), but once it rains (and this is my DD), those tires are flat dangerous... so I don't want to do that w/ this car.

This wheel (and tire) will completely change the dynamic of your car. About 2 cm wider tire and 4 cm taller wheel will significantly change the ride of your car and I have no idea why you are interested. If you are looking for better grip/traction you need to go with softer rubber not wider one. On top of that using this setup you will observe the understeering causes the big reduction of nimbleness unless you just care about drag race which is not what an M-Car meant to be built!

[tampaturbom3]

I agree M6-coupe,,, I had decided from the previous posts along with my concern of rubbing & possible awkward look that I would stick with the 305/30/20. I know from "upsizing" 1 width size, grip will improve without much (if any) negative attributes. My wife's CLS AMG spun her 285's P-zero's like crazy, I put 295 Conti extreme's on and it got amazingly better. I'm probably going to order the new Michelin Super Sport replacement- the Pilot Sport 4S and hope for the best. I was tempted to get the Pilot Cup 2's, but I'm betting I would only get about 6 months out of those (I drive 50-60 miles round trip per work-day).

[M6-Coupe]

Originally Posted by tampaturbom3

I agree M6-coupe,,, I had decided from the previous posts along with my concern of rubbing & possible awkward look that I would stick with the 305/30/20. I know from "upsizing" 1 width size, grip will improve without much (if any) negative attributes. My wife's CLS AMG spun her 285's P-zero's like crazy, I put 295 Conti extreme's on and it got amazingly better. I'm probably going to order the new Michelin Super Sport replacement- the Pilot Sport 4S and hope for the best. I was tempted to get the Pilot Cup 2's, but I'm betting I would only get about 6 months out of those (I drive 50-60 miles round trip per work-day).

I used to have MPSS and Nitto NT5 both 305/30/20 and highly recommend MPSS

[tampaturbom3]

I agree, the Nitto's seem to harden up over time... I think the Michelins seem to stay consistent over time.

[M6-Coupe]

Nitto did last just couple of months ... maybe 3-4k miles but I had MPSS for about 9-10 months... something about 10k!

[Flying Ace]

315/35/20 btw is OEM BMW X5 tire size, that's why you see so many options out there.

[Downfourit]

What do you guys think about the 315/30/20 Pirelli Corsa tires?

https://www.tirerack.com/tires/tires...omCompare1=yes

[M6-Coupe]

Originally Posted by Downfourit

What do you guys think about the 315/30/20 Pirelli Corsa tires?

https://www.tirerack.com/tires/tires...omCompare1=yes

UTQG: 60 AA A is very soft rubber and it's good for track not street...

[melvyn]

Anyone tried the Mich cup 2 for spring summer fast road use, thinking of trying them in 305/30 on the 601 rims

[Downfourit]

Originally Posted by M6-Coupe

UTQG: 60 AA A is very soft rubber and it's good for track not street...

I live in SoCal, it rains a month out of the year pretty much, haha. I figured these Corsa's will give me the traction I need and hold up better than the R888 or NT05, which are pretty much the only options in the 315/30 range. For sure these will give me better traction than any other 305/30 is why i am thinking them over.

[M6-Coupe]

Originally Posted by Downfourit

I live in SoCal, it rains a month out of the year pretty much, haha. I figured these Corsa's will give me the traction I need and hold up better than the R888 or NT05, which are pretty much the only options in the 315/30 range. For sure these will give me better traction than any other 305/30 is why i am thinking them over.

I know but just keep in mind that NT05 did last only 3 months on rear of my M6... this one could be a month or two lol

[Downfourit]

Originally Posted by M6-Coupe

I know but just keep in mind that NT05 did last only 3 months on rear of my M6... this one could be a month or two lol

That's the downside and the reason I keep looking at Pirelli 305/35/20 P-Zero's. I know some might not agree with the look and the loss of a tiny bit of handling from the rear height difference, but if you want to be safer with a car making 650+tq at the wheels you have to sacrifice something.

[nabizzy]

I have a set of 305/30-20 P zeroes brand new I can sell to you if you are interested, however, I am located in Houston, so we would have to arrange for shipping.

[M6-Coupe]

Originally Posted by Downfourit

That's the downside and the reason I keep looking at Pirelli 305/35/20 P-Zero's. I know some might not agree with the look and the loss of a tiny bit of handling from the rear height difference, but if you want to be safer with a car making 650+tq at the wheels you have to sacrifice something.

If I were you, I would go with 305/30/20 MPSS

[Downfourit]

Originally Posted by M6-Coupe

If I were you, I would go with 305/30/20 MPSS

I just might have to go that route front and rear. I'll keep the Pirelli's and just put them back on in 35 months

[tampaturbom3]

I ended up getting 265/35/20 MPSS on front and 305/30/20 M Pilot Sport Cup 2's for the rear... way better grip (although still can't nail it from a stand still without wild spinning) but at least once a little spin is over, they grip. even with spin, I'm getting a 3.57 0-60 time. if I can figure out how to feather the launch (with DCT), it should be a 3.2 to 3.3 0-60mph time. I also haven't figured out how to do launch control... so I need to figure that out because I think the computer maximizes the power without the spin for the best 0-60 time... but I could be naive'
but the point was that this set up is LIGHT YEARS better than the Pirellis that the car came with. I was spinning all the time... and I even thought the car had suspension issues because it would change directions as you drove aggressively in a straight line... I was going to have BMW check ball joints, sway bars, links, etc... with the new Michelins, it's straight as an arrow when accelerating. whew,, much less butt pucker now!