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      03-05-2017, 02:19 PM   #1
pruettfan
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Track day square setup

I have looked at the Tire Rack track day package and may go that route but as the OCD guy I am I have also looked at other options like the forged wheels from Bimmerworld and the various wheels from Apex. I want to go with a square 265-35-18 setup and have been looking at wheels that are 18x9.5 35et. I believe this setup will work with a stock M2 suspension but I am hoping to get confirmation from someone. The tire rack setup is the same with the exception of an offset of 33 so I assume 35 will work.

Any thoughts from those who are experienced are appreciated.
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      03-06-2017, 06:56 PM   #2
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Messaged Bimmerworld and they recommend the ET22 setup but state its pretty aggressive and may require camber adjustments which I really want to avoid. I am hoping someone can chime on on if a 35 ET would work. I am no expert but I believe 35 would be considered less aggressive and not require a camber adjustment. My car is a daily otherwise I wouldn't be against going with a camber adjustment.
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      03-07-2017, 06:52 AM   #3
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After driving my M2 for 250 miles, not even pushing it in any way of course. I can feel the car turns in so much more easily than my 335is. If you are not completely sure why are wanting a square setup, aside from Tire Rack recommending it, I would not make the change. If you are referring to track as in Auto-X a square setup will help, for HPDE at real tracks, I would not make the change. This car does not have the problems cars in past have had related to turn-in and balance. There are also reasons why pretty much every form of auto racing does not run a square setup.
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      03-07-2017, 07:50 AM   #4
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isjoey is correct. The car drives great on the stock wheels. I even tracked the car at Road Atlanta on stock and it was very well behaved. I then installed MP coilovers ( already have GC camber plates) and Tire Rack square 18 set up. I ran 275 square slicks but needed 10mm front spacers....car tracked like a boss. Then tried RE71 square in 265, without spacers, and it was almost as good as the slicks. Overall this car is so well balance that any set up will work. Don't spend the money or hassle with wheels unless you really have a "need" like getting an extra 3-4 seconds per lap.
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      03-07-2017, 06:50 PM   #5
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Thanks for the feedback. I have limited track experience (2 day M School) so I am not seeking optimum track times. What I want to accomplish is to not use of my street tires too much and take advantage of tires with a little more grip for HDPE days. I think I will try a few track days before I spend any money.
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      03-07-2017, 07:42 PM   #6
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Quote:
Originally Posted by pruettfan View Post
Thanks for the feedback. I have limited track experience (2 day M School) so I am not seeking optimum track times. What I want to accomplish is to not use of my street tires too much and take advantage of tires with a little more grip for HDPE days. I think I will try a few track days before I spend any money.
You can buy a set of Yokohama AD08s in factory sizes and run them rain or shine with great durability, and very cheap compared to PSS.
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      03-08-2017, 06:18 AM   #7
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Quote:
Originally Posted by pruettfan View Post
Thanks for the feedback. I have limited track experience (2 day M School) so I am not seeking optimum track times. What I want to accomplish is to not use of my street tires too much and take advantage of tires with a little more grip for HDPE days. I think I will try a few track days before I spend any money.
Very good decision! The M2 is sooo great as it is right off the showroom floor. Just schedule some track days looking to learn and have a good time.

In regards to tires another set of wheels with Michelin PSS or similar would be perfect! Showing up with a "track tire" when are first learning is a bad idea. You want to be able to learn how the car moves around, slides, good wet performance, etc. While track tires give better dry grip, they offer you less in the other areas making it harder to learn what is really important.

The best investment you can make is track time! Specifically, BMW CCA HPDE weekends.
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      03-09-2017, 12:17 PM   #8
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Quote:
Originally Posted by pruettfan View Post
I have looked at the Tire Rack track day package and may go that route but as the OCD guy I am I have also looked at other options like the forged wheels from Bimmerworld and the various wheels from Apex. I want to go with a square 265-35-18 setup and have been looking at wheels that are 18x9.5 35et. I believe this setup will work with a stock M2 suspension but I am hoping to get confirmation from someone. The tire rack setup is the same with the exception of an offset of 33 so I assume 35 will work.

Any thoughts from those who are experienced are appreciated.
18x9.5 et 33-35 will work with 265/35/18 on a stock M2, but, make sure the brake clearance has been verified too, because that can be an issue. The Apex Ec-7 18x9.5 et 35 clears and so does the TrMotorsport C4 18x9.5 et 33. I am sure there are others in that sweet spot range (et 33-35), but as mentioned, just watch out for necessary brake clearance. I have no info on the Bimmerworld wheel though, never used it
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      03-09-2017, 02:32 PM   #9
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Quote:
Originally Posted by Twt View Post
Quote:
Originally Posted by pruettfan View Post
Thanks for the feedback. I have limited track experience (2 day M School) so I am not seeking optimum track times. What I want to accomplish is to not use of my street tires too much and take advantage of tires with a little more grip for HDPE days. I think I will try a few track days before I spend any money.
You can buy a set of Yokohama AD08s in factory sizes and run them rain or shine with great durability, and very cheap compared to PSS.
AD08 are far better prepared for HPDE usage
Than MPSS, especially if ambient temps exceed 80 degrees
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      03-09-2017, 11:36 PM   #10
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RE71R are better than either and work well in the rain. Ran them in the pouring rain at Laguna Seca and was very impressed.
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      03-10-2017, 03:00 PM   #11
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Originally Posted by MayorAdamWest View Post
RE71R are better than either and work well in the rain. Ran them in the pouring rain at Laguna Seca and was very impressed.

True story. The RE71R is the top Autocross tire out there right now and it can certainly be used for track use .. however one will get half the life of the other two as well.
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      03-10-2017, 06:33 PM   #12
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Since I am just starting out I have decided to run my stock setup this year and do 3-4 track days and then decide which way to go rather than investing in a dedicated setup. I am at about 10,000 miles and my rear conti's are close to being done, well close enough. I am not a fan. Anyway I have a set of the new Michelin Pilot Sport 4s in the garage that are going on Monday, I will use those this year and report back how things are going.
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      03-11-2017, 07:47 PM   #13
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Quote:
Originally Posted by Twt View Post
isjoey is correct. The car drives great on the stock wheels. I even tracked the car at Road Atlanta on stock and it was very well behaved. I then installed MP coilovers ( already have GC camber plates) and Tire Rack square 18 set up. I ran 275 square slicks but needed 10mm front spacers....car tracked like a boss. Then tried RE71 square in 265, without spacers, and it was almost as good as the slicks. Overall this car is so well balance that any set up will work. Don't spend the money or hassle with wheels unless you really have a "need" like getting an extra 3-4 seconds per lap.
What brand of slicks? I'm still curious if 265 Nto1's will fit (on the TRsquare setup) since they are xl
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      03-14-2017, 10:03 AM   #14
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Quote:
Originally Posted by MRufo View Post
What brand of slicks? I'm still curious if 265 Nto1's will fit (on the TRsquare setup) since they are xl
any 265/35/18 will fit on the TRMotorsport C4 18x9.5.
The "XL" rating on a tire is referring to the load rating. It does not have anything to do with the dimensions.
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      03-14-2017, 04:33 PM   #15
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Thanks Keith!
I've been very happy with my square setup and our snow tires I ordered from you.
Go TR!
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      03-14-2017, 04:56 PM   #16
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Quote:
Originally Posted by Keith@tirerack.com View Post
any 265/35/18 will fit on the TRMotorsport C4 18x9.5.
The "XL" rating on a tire is referring to the load rating. It does not have anything to do with the dimensions.
But the 265 Nto1 has a 26.3 diameter. Seems a little large for the M2. Especially on the front. Maybe the 275's at 25.5 would be a better option!?!?

Last edited by MRufo; 03-14-2017 at 05:03 PM..
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      03-15-2017, 07:22 AM   #17
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Quote:
Originally Posted by MRufo View Post
But the 265 Nto1 has a 26.3 diameter. Seems a little large for the M2. Especially on the front. Maybe the 275's at 25.5 would be a better option!?!?
After looking at Nitto's size chart, they do not even build a 265/35/18.
You must be looking at the 265/40/18. I cannot guarantee a 265/40/18 to clear.

To be clear, I am only recommending a 265/35/18 as a square setup.
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