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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wheels and Tires Forum Sponsored by The Tire Rack > Need better grip...advice please!



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      03-21-2013, 12:43 PM   #1
texxy
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Need better grip...advice please!

Hey guys, when I first got my e92 I was much more show then go. I am currently running these nice rims with a little bit of a stretch with the Specs of:

19x8.5
Offset: et30
225/35/19

19x9.5
Offset: et33
255/30/19

Now that I have 400+ HP I realize that it is time for new tires and wheel sizes. Can someone recommend me a solid rim and tire setup for daily driving and having some fun. The setup I currently have is not the best.

I am thinking of downsizing to 18's and trying to perhaps run 275 in the rears? Is it possible? Do I even need that much? I am not the best tire genius so please any help is greatly appreciated!

Thank you!
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      03-21-2013, 12:55 PM   #2
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I'm an E9O but
I use Michelin PSS tires, if you're too low, I'd raise it up a bit since the since the sidewalls are squared and a bit taller. I'm on
19x8.5 et 35 235/35/19 rolled fenders stock alignment spec
19x9.5 et 33 265/30/19 rolled fenders stock alignment spec
No rubbing. You could run the same, they're very grippy and I feel the power not being wasted.
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      03-21-2013, 01:15 PM   #3
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Quote:
Originally Posted by Route 16 View Post
I'm an E9O but
I use Michelin PSS tires, if you're too low, I'd raise it up a bit since the since the sidewalls are squared and a bit taller. I'm on
19x8.5 et 35 235/35/19 rolled fenders stock alignment spec
19x9.5 et 33 265/30/19 rolled fenders stock alignment spec
No rubbing. You could run the same, they're very grippy and I feel the power not being wasted.
I am also on Michelin PSS and am lowered so that is an option. But I am highly considering going to a lower rim size such as 18"
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      03-21-2013, 01:17 PM   #4
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I see, personally I'd still go with PSS in 18's on APEX brand wheels.
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      03-21-2013, 01:18 PM   #5
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18 is a way bettert choice for performance comapred to 19's.
Personally i think 18's look the best on e9x

Tires I would say 265/235 or 275/245
PSS is a great choice
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      03-21-2013, 01:56 PM   #6
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Quote:
Originally Posted by Hybrid For Life View Post
18 is a way bettert choice for performance comapred to 19's.
Personally i think 18's look the best on e9x

Tires I would say 265/235 or 275/245
PSS is a great choice
I have my stock 18" 313 rims but those are I believe 8.5 in front and 9.5 in rear. If I WANT better grip shouldn't I get at least 10 in the rear?
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      03-21-2013, 02:17 PM   #7
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Quote:
Originally Posted by texxy View Post
Hey guys, when I first got my e92 I was much more show then go. I am currently running these nice rims with a little bit of a stretch with the Specs of:

19x8.5
Offset: et30
225/35/19

19x9.5
Offset: et33
255/30/19

Now that I have 400+ HP I realize that it is time for new tires and wheel sizes. Can someone recommend me a solid rim and tire setup for daily driving and having some fun. The setup I currently have is not the best.

I am thinking of downsizing to 18's and trying to perhaps run 275 in the rears? Is it possible? Do I even need that much? I am not the best tire genius so please any help is greatly appreciated!

Thank you!

1. Square set-up: Apex Arc-8 17 or 18 rims; 255 square; or 255f, and 265 or 275 rear. Tires: PSS, Direzza ZII or RE-11 etc.
2. Camber plates: Vorshlag or Ground Control
3. LSD
DONE

4. Maybe: M3 front control arms

I have 17" 9.5 Apex Arc-8 with 255/40 RE-11A.

Also, check out tracking section - a ton of info.
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      03-21-2013, 07:41 PM   #8
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OP what tire compound do you want to run?
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      03-22-2013, 02:27 AM   #9
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Quote:
Originally Posted by Hybrid For Life View Post
OP what tire compound do you want to run?
What do you mean exactly by "compound" sorry for noobness.
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      03-22-2013, 03:17 AM   #10
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Quote:
Originally Posted by texxy View Post
I have my stock 18" 313 rims but those are I believe 8.5 in front and 9.5 in rear. If I WANT better grip shouldn't I get at least 10 in the rear?
What are you driving? Sedan? Coupe? Also what year? LCI has a different capacity in the rear than pre-LCI.

I have OEM style 219M wheels made for the M3 and they are 8.5 front/9.5 rear. If you have PSS, the 225/255 tire size should fit the 18s perfectly without any rubbing. I am running 235/265 with a little rub when I hit big dips that cause the rear to bounce, so I am thinking of going back to 225/255 if I purchase the PSS because they tend to have a more square shoulder than the Hankooks I am running now...




If you plan on going in a straight line at a drag strip, then you might consider 10 inch wheels in the rear. If the M3 uses 9.5 inch wheels, there is no need for wider tires in the back. You would really need a limited slip diff, tho, to put that power in the back to both wheels.

Compound is what the tire is made of. Drag slicks have a much softer compound and thus, grippier than street tires, which have a higher UTQG rating due to the compound that makes them harder to last longer.

For example:

Hoosier race drag radials only good for track use has a UTQG rating of 40, which means the compound is really soft and will melt and get really grippy after warming them up by spinning the wheels to "burn rubber" prior to going down the track. Not made for street use, BTW.

Michelin Pilot Super Sports, on the other hand, have a UTQG rating of 300, which is in the middle of the pack, in order to last longer than 10K miles as summer tires, only.

Continental Extreme DWS have the highest UTQG rating of the three at 540, mixing different compounds to work well in summer as well as winter, since they are all-season tires, which should last at least 20K miles.
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      03-22-2013, 10:59 AM   #11
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Quote:
Originally Posted by flip4335 View Post
What are you driving? Sedan? Coupe? Also what year? LCI has a different capacity in the rear than pre-LCI.

I have OEM style 219M wheels made for the M3 and they are 8.5 front/9.5 rear. If you have PSS, the 225/255 tire size should fit the 18s perfectly without any rubbing. I am running 235/265 with a little rub when I hit big dips that cause the rear to bounce, so I am thinking of going back to 225/255 if I purchase the PSS because they tend to have a more square shoulder than the Hankooks I am running now...




If you plan on going in a straight line at a drag strip, then you might consider 10 inch wheels in the rear. If the M3 uses 9.5 inch wheels, there is no need for wider tires in the back. You would really need a limited slip diff, tho, to put that power in the back to both wheels.

Compound is what the tire is made of. Drag slicks have a much softer compound and thus, grippier than street tires, which have a higher UTQG rating due to the compound that makes them harder to last longer.

For example:

Hoosier race drag radials only good for track use has a UTQG rating of 40, which means the compound is really soft and will melt and get really grippy after warming them up by spinning the wheels to "burn rubber" prior to going down the track. Not made for street use, BTW.

Michelin Pilot Super Sports, on the other hand, have a UTQG rating of 300, which is in the middle of the pack, in order to last longer than 10K miles as summer tires, only.

Continental Extreme DWS have the highest UTQG rating of the three at 540, mixing different compounds to work well in summer as well as winter, since they are all-season tires, which should last at least 20K miles.
Ah I see thank you so much for the advice! I have a 2012 335is 6MT so it came with the 18" 313 style rims. My PSS won't fit on them because the ones I have are for 19's.

I would prefer the PSS middle of the pack for more daily driving. I just want to be able to drive regularly with the power
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      03-25-2013, 06:28 PM   #12
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So would it be bad to use the stock 313's?
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      03-26-2013, 01:12 PM   #13
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Quote:
Originally Posted by Route 16 View Post
I'm an E9O but
I use Michelin PSS tires, if you're too low, I'd raise it up a bit since the since the sidewalls are squared and a bit taller. I'm on
19x8.5 et 35 235/35/19 rolled fenders stock alignment spec
19x9.5 et 33 265/30/19 rolled fenders stock alignment spec
No rubbing. You could run the same, they're very grippy and I feel the power not being wasted.
Those are the specs we recommend.

18s would definitely be good for performance though!
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