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[N54Society]

Anyone know how wide I can go on these rims on a stock ride height E90 (not E92)? Non-LCI.
I know you can run an aspect ratio of 40 but how wide can you go?

Thanks

[Antetokounmpo]

Not trying to be a d*ck here but do you understand how the aspect ratio affects height? Overall tire height depends on the width and ratio. For instance a 225/40/17 is way too small (diameter wise, 24.1") for the e90 whereas a 255/40/17 is the correct height (25.2").

That being said, on something like the 17x9 et30, a 255/40/17 on all 4 will give you no issues. You can run wider in the rear, but IMO a square setup is so much better for this car.

Edit: you need to remove the camber pins for 17x9 et30 w/ a 255. If you go 17x8.5 et40, you can run stock camber with a 255 front.

[Ruddigger]

Well, with 255's on that 17x9 you wont have issues with tire fitment on the rim, but you will have issues with clearance in the front, unless you do something like camber plates. Ask me how I know...

And yeah, what Harimbe said about the sidewall height being a ratio that is governed by the tread width. 265/40 is taller than 245/40, for example. And you neglected to mention which width of rim you were looking at, they make several in 17".

[Antetokounmpo]

Originally Posted by Ruddigger

Well, with 255's on that 17x9 you wont have issues with tire fitment on the rim, but you will have issues with clearance in the front, unless you do something like camber plates. Ask me how I know...

And yeah, what Harimbe said about the sidewall height being a ratio that is governed by the tread width. 265/40 is taller than 245/40, for example. And you neglected to mention which width of rim you were looking at, they make several in 17".

I stand corrected. I guess I've only ran 255 front with stock camber on a 8.5 et38. After running that for a bit with no issues, I pulled the camber pin on the stock top hats and maxed it out, then I added 15mm spacers which made my setup slightly more aggressive than a 9et30.

[Msport335]

on my e90 lci i run conti DW 255/40/17 square on my arc8 17x9

stock sport suspension and no clearance issues whatsoever with camber untouched

[Ruddigger]

I hit mine on large bumps. Knocked my bumper off once, lol. I have my pins pulled and m3 arms for more camber, still isnt enough.

I've seen as wide as square 275/40/17 R-compounds on 17x9.5 Arc-8. Took a bit of camber up front, but it seemed to work for that user no prob. His posts/pics are still floating around here somewhere.

[refugeeofwar]

[QUOTE=Ruddigger;20429507]Well, with 255's on that 17x9 you wont have issues with tire fitment on the rim, but you will have issues with clearance in the front, unless you do something like camber plates. Ask me how I know...QUOTE]

I run 255/40/ZR17 Nitto Nt01s on my Arc-8 17x9 ET30s on the front of my E92 with no issues at the track. Is there less room on the E90? I was under the impression there was as much.

[Ruddigger]

I think there is a bit less, but not sure. A friend of mine has the same setup on her e92 with fitment issues as well. Lol, I'm maybe only a few mm lower than stock sport, not really low at all.

[N54Society]

Thank you all for your very helpful replies. I should have clarified a couple of things.

1. I don't plan to track the car. This setup is going to be drag oriented. Fronts are not important to me.
2. I plan on going with the 9.5 or even 10" on the rear, whichever one fits on a 2009-2010 E90

This guy has the setup I would really like to pull off. My question is, do you have to modify anything to get this setup to work? Can you do it on stock sport suspension?

Apex ARC-8
Toyo Proxes R1r
17x9 245/40/17
17x9.5 275/40/17
ECS Tuning 5mm Spacers

Ask the guy that's actually running that setup..??

[Antetokounmpo]

I lost you at "fronts are not important"

[N54Society]

Originally Posted by FCobra94

Ask the guy that's actually running that setup..??

I would if I knew who's car it was.

Originally Posted by Harambe

I lost you at "fronts are not important"

Sorry. Just not an autox or track guy, like most people on here. I plan go to single turbo so I need grip on the back.

[Antetokounmpo]

Originally Posted by vbp6us

I would if I knew who's car it was.



Sorry. Just not an autox or track guy, like most people on here. I plan go to single turbo so I need grip on the back.

Literally took me 2 sec to find.

http://www.e90post.com/forums/showthread.php?t=1014573

Wheels:

Apex Wheels Satin Black
17x9 ET30 245/40/17
17x9.5 ET35 275/40/17+ 5mm Spacers
Toyo Proxes R1r

[Bimmer Barney]

I run:
245/40/17 up front
275/40/17 rear

M3 Arms, Pins in place, stock sport suspension. No rubbing ever with Conti DWS

I am due for tires soon and asked Apex if I could run a 255/40/17 up front Conti DW and they said yes. Tried and tested.

Hope that helps.

[NW 335i]

http://www.e90post.com/forums/showpo...&postcount=483

Apex Arc 8
17x9 et30 BFG Sport Comp 2 245/45/17
17x9.5 et35 BFG Sport Comp 2 275/40/17
M3 front UCA & LCA pins pulled -1.5 degrees up front
Stock sport suspension
Was getting slight rubbing out back on big dips and just had fenders rolled. No more rubbing.

Lots to look at here.
http://www.e90post.com/forums/showthread.php?t=891306

[Hpirx]

Pre lci E90:
Arc 8s 17x9 Square.
Bridgestone Potenza S-04s 255/40/17 square.
No rubbing on bumps or at track.

[Expert@ApexWheels]

OP, for a street/drag focused setup many customers go with the the spec's you mentioned with little to no modifications required. The only concern surrounds rear fender clearance, which means we must pay attention to vehicle ride height, rear tire size/brand and alignment settings (specifically negative camber specs).

In some cases the 275/40-17 tires clear the rear fenders without any modification necessary. In these instances, it is likely that the car is at, or close to stock ride height. If the car is lowered, your chances of needing the rear fenders to be rolled are greater. You may also choose to dial in a little more negative camber in the rear, which would create a bit more clearance between the shoulders of the rear tires and the fender edge.

Also, it is important to keep in mind that LCI E90 sedan's have less clearance out back in comparison to the pre-LCI E90 sedans and E92 coupes of all production years.

Front: 17x9" ET30 - 245/40-17
Rear: 17x9.5" ET35 - 275/40-17

Please let us know if you have any further questions

- Ryan

[damonp335i]

Originally Posted by Expert@ApexRaceParts

OP, for a street/drag focused setup many customers go with the the spec's you mentioned with little to no modifications required. The only concern surrounds rear fender clearance, which means we must pay attention to vehicle ride height, rear tire size/brand and alignment settings (specifically negative camber specs).

In some cases the 275/40-17 tires clear the rear fenders without any modification necessary. In these instances, it is likely that the car is at, or close to stock ride height. If the car is lowered, your chances of needing the rear fenders to be rolled are greater. You may also choose to dial in a little more negative camber in the rear, which would create a bit more clearance between the shoulders of the rear tires and the fender edge.

Also, it is important to keep in mind that LCI E90 sedan's have less clearance out back in comparison to the pre-LCI E90 sedans and E92 coupes of all production years.

Front: 17x9" ET30 - 245/40-17
Rear: 17x9.5" ET35 - 275/40-17

Please let us know if you have any further questions

- Ryan

What about 275/40/17 on 10.5 rims et27 on an e92?

[Msport335]

Now running 275/40/17 nt555r drag radial on me arc8 17x9 et 30 on my e90 LCI with mild fender roll....no rubbing on stock sport suspension

Originally Posted by Msport335

Now running 275/40/17 nt555r drag radial on me arc8 17x9 et 30 on my e90 LCI with mild fender roll....no rubbing on stock sport suspension

Put them up front and let us know how it works out

[Msport335]

Originally Posted by FCobra94

Put them up front and let us know how it works out

i hope no one would ever run a drag radial up front ...