What is the max tire size anyone has fitted in the front?

[m3kerry]

I am going to try to run out to Dallas for the next bmwcca event to get some seat time on some borrowed r comps and need to figure out what size to run up front.

[M3 Adjuster]

I am working on getting my car to Vorshlag this week sometime so we can hopefully find this out, as well as enable Terry to take measurements to see if they can make a camber plate for the stock springs.

[Wolfpack]

Nice to know that someone is going to be looking at this sooner rather than later. Post up when you know more.

[Fundahl]

Interested in camber plate!

[m3kerry]

Originally Posted by M3 Adjuster

I am working on getting my car to Vorshlag this week sometime so we can hopefully find this out, as well as enable Terry to take measurements to see if they can make a camber plate for the stock springs.

Ken o has 4 285's on 18's but I find a couple of 275's I think for the front.

[M3 Adjuster]

Originally Posted by m3kerry

Ken o has 4 285's on 18's but I find a couple of 275's I think for the front.

Yup... Ken and I had planned to do the same.. but since Terry has zillions of spacers available and a lift....

[MusclezMarinara]

camber plates a friend of mine did it on the 1M looks sick!

[Fundahl]

Originally Posted by MusclezMarinara

camber plates a friend of mine did it on the 1M looks sick!

Do you know what brand and where to purchase? Is it 1M specific?

What do you guys think about 265/35R19 F and 285/30R19 R on stock rims?

[m3kerry]

Originally Posted by M3 Adjuster

Yup... Ken and I had planned to do the same.. but since Terry has zillions of spacers available and a lift....

So you think the 285's will work with a spacer?

[M3 Adjuster]

Originally Posted by m3kerry

So you think the 285's will work with a spacer?

Ok.. Sorry for the delay on this... Still waiting for Terry to let me know when to show up for measurements on the camber plates.. I will ping him again..In the meantime.. went to my friend Ken O's house this past weekend with my BONE stock 1M. No camber plates..no suspension.. bone stock! We decided to test fit wheels and tires on my car... He has several sets of wheels.. All wheels are 18 x 10 APEX ARC-8. We test fit and dropped the car down..sorry... no rolling around... no driving..

First off.. we decided to go big.

285/30/18 Hoosier A6
the good.. Rear fits easy.. 305s anyone? Maybe even bigger on an 11" wheel if one wants to go crazy.. Front seems to fit fine with respect to the fender.. the tire does stick out 1" further than the body work. there appeared to be no issues contact with the spring/perch.

the bad... The front tire rubbed.. ever so slightly on the inside front wheel well as the wheel was turned towards full lock - The part of the innerwheelhouse that rubs is in the front bumper, right wherre there is a radiator/cooler...

left side..



right side..





the ugly.. - Dunno.. Oddly.. the panel where this radiator/cooler is in the wheelhouse is in a spot that seems to move naturally. Slight pressure on the panel allows it to move in away fom the tire. While the movement inward from the tire was minimal at rest.. this could ugly at speed at full lock.. Especially if one were attemping to autocross. Could one possibly use 5-10 mm spacers and have success? yes.. but the 285/18 tire on a 10" wheel is already outside the front fenders.. so would only look more odd in that regard.


they stick out a lot though...






rear

clearly one can go WAYYY wider in the rear..






Next up.. we went with a Street tire.
Hankook Ventus RS3 275/35/18
The Hankook is a very rounded street tire. In many ways it actually fit WORSE than the 285/30 Hoosiers.

-the good.. - well.. none.
-the bad... - this tire has shoulders on it due to it's being so round, and there was much less room at the spring perch... could poss rub... And turning the wheel..DEFINITE contact was made with the front inner fender wheelhouse with the the cooler in it.
-The ugly - Don't go there with this tire.. Or very likely you will cause damage to inner wheelhouse parts






275/35/18 Hoosier
While a set of these was mounted and available.. I feel confident that these should fit. Maybe not 100$ confidence.. but enough that this weekend we will go ahead and bolt a set of these on the car and see how they do at an autocross. If they do ok this weekend.. then I will pick up some Continental Tire/Grand Am cup takeoffs for DE use.

The rim width appears to play a clear factor in whether or not there is contact between the tire and the front inner wheelhouse. For those that want to maintain a staggerred setup.. 18 x 9.5 front and 18x 10.5 rear is the easy way to go to avoid issues. more tire on a 1/2" wider wheel. I personally am hoping to be able to rotate tires, as well as utilize several wheels of the same size.. so I am going to push forward with seeing what fits on 18x10 all around.

[BMW Gator]

"What do you guys think about 265/35R19 F and 285/30R19 R on stock rims?"

BMW's MotoGP Safety Car is running 255/35 19F and 285/30 19R

[Wolfpack]

Originally Posted by M3 Adjuster

I personally am hoping to be able to rotate tires, as well as utilize several wheels of the same size.. so I am going to push forward with seeing what fits on 18x10 all around.

That is my biggest hope also. I have tried the staggered route before and found the lack of being able to rotate a major cost and pain in the *** factor.

Keep us up to date on this. Thanks Mark.

[gobuffs]

Originally Posted by M3 Adjuster

If they do ok this weekend.. then I will pick up some Continental Tire/Grand Am cup takeoffs for DE use.

Are you ever going to learn?

[M3 Adjuster]

Originally Posted by gobuffs

Are you ever going to learn?

? umm... no? I'm too cool for school..



learn what? I will see if Ken's wheels with the 275/35s fit this weekend at an autocross.. if so.. then I'll be buying up as many takeoffs as I can stack in the garage.. lol. That will set me up for TWS.


Are you referring to the "false economy" of used tires? These are for DE.... and a set of takeoffs from TMS or Bimmerworld... at $350 set... vs... $350 APIECE.. Yeah.. I'm gonna go cheap for a bit..

[MusclezMarinara]

I think a 305 will fit on 19s no spacer

[HP Autowerks]

Originally Posted by M3 Adjuster

I am working on getting my car to Vorshlag this week sometime so we can hopefully find this out, as well as enable Terry to take measurements to see if they can make a camber plate for the stock springs.

It's about time Vorshlag is going through with this. I have been pushing them to get this ever since the E9x M3 came out in 2008.

265/35/18 will fit on the front, but most tires will rub on the inner fender liner on or near full steering lock. 275/35/18 will also fit with a little bit more rub. Every car is a little different so you may or may not rub on the liner with yours.

[m3kerry]

Thanks mark. Ken sent the photo of the front today. I am real hopeful for the 265 / 19's from Hoosier after seeing it.

[gotboost426]

Originally Posted by Fundahl

Do you know what brand and where to purchase? Is it 1M specific?

Yep, Bimmerworld and they are Ground Control

Thanks dude!

What do you guys think about 265/35R19 F and 285/30R19 R on stock rims?

Would look sick!

[gobuffs]

Originally Posted by M3 Adjuster

? umm... no? I'm too cool for school..

10 seconds per lap no grip scrubs. Remeber? Some scrubs can be good but in general not so much.

[M3 Adjuster]

Originally Posted by m3kerry

Thanks mark. Ken sent the photo of the front today. I am real hopeful for the 265 / 19's from Hoosier after seeing it.

Thanks to Franklin for bringing his wheels and tires up to TWS on Saturday.
We were able to succesfully mount four 18 x 10 Apex ARC-8s with 275/35/18 Koni Challenge ( rebadged Hoosier) tires on my car. My car is bone stock... no spacers were needed.. I did two sessions on track with the tires.. no curb hopping as this track is not really conducive to that... after two sessions including some parking lot manuevers, I am happy to report no evidence of rubbing anywhere... even with the 10" rims up front.

[MDORPHN]

Originally Posted by M3 Adjuster

Thanks to Franklin for bringing his wheels and tires up to TWS on Saturday.
We were able to succesfully mount four 18 x 10 Apex ARC-8s with 275/35/18 Koni Challenge ( rebadged Hoosier) tires on my car. My car is bone stock... no spacers were needed.. I did two sessions on track with the tires.. no curb hopping as this track is not really conducive to that... after two sessions including some parking lot manuevers, I am happy to report no evidence of rubbing anywhere... even with the 10" rims up front.

That's great.

What offset?

Neil

[Franklin Joseph]

25 offset