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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 > Kind of a different square setup question



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      12-02-2015, 06:18 PM   #1
elh0102
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Kind of a different square setup question

I recently bought a 2009 335i coupe, 6 speed, sport package. I used to do a lot of track schools, kind of retired from it (as I am, actually, retired), but thought I might do a few on occasion with local clubs. If I consider a track capable setup with good, summer tires, a relatively inexpensive way to go would be to buy two front wheels (18x8), and run 225/40 all around. I realize this is going "small", but my experience suggests the tire itself, with the same size on all corners, is more important than trying to bring the largest possible size up front. Any thoughts?
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      12-02-2015, 07:09 PM   #2
FCobra94
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If you're going to the trouble of sourcing OEM wheels, might as well get the REAR fitment on all four corners instead.
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'07 E90 335i - Automagic - Non-sport
MHD|Alpina Flash|Fuel It! Stg 2|VRSF:7"FMIC-DP-CP|TIAL BOV|cp-e DCI
Bilstein B6|E93 M3 FSB|SP Lowering Perches|M3 LCA|M3 Guide Rods|HPS 5.0
Summer: Sonic Tuning ST100 - 18x8.5 ET35 - Conti DWS 245/40/18 - 10/15 F/R spacers
Winter: Style 159 - 17x8 ET34 - Michelin X-Ice Xi2 225/50/17 - 10/15 F/R spacers
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      12-02-2015, 08:06 PM   #3
elh0102
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Quote:
Originally Posted by FCobra94 View Post
If you're going to the trouble of sourcing OEM wheels, might as well get the REAR fitment on all four corners instead.
The rear 8.5" wheel with its offset, would create a clearance problem in the front, unless I downsize the tire to at least 245, maybe 235, so I think simply using the front fitment might be simpler. It gives more inboard strut clearance, and moves the outer edge of the tire in only 3mm, so not really a visual issue, and my purpose is solely functional.
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      12-02-2015, 09:29 PM   #4
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Quote:
Originally Posted by elh0102 View Post
The rear 8.5" wheel with its offset, would create a clearance problem in the front unless I downsize the tire to at least 245, maybe 235,
False. Use the search button.

Also, since when are wider wheels/tires not functional for track day purposes?
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'07 E90 335i - Automagic - Non-sport
MHD|Alpina Flash|Fuel It! Stg 2|VRSF:7"FMIC-DP-CP|TIAL BOV|cp-e DCI
Bilstein B6|E93 M3 FSB|SP Lowering Perches|M3 LCA|M3 Guide Rods|HPS 5.0
Summer: Sonic Tuning ST100 - 18x8.5 ET35 - Conti DWS 245/40/18 - 10/15 F/R spacers
Winter: Style 159 - 17x8 ET34 - Michelin X-Ice Xi2 225/50/17 - 10/15 F/R spacers
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      12-03-2015, 07:20 AM   #5
elh0102
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Quote:
Originally Posted by FCobra94 View Post
False. Use the search button.

Also, since when are wider wheels/tires not functional for track day purposes?
Correct, perfectly functional. But this is not a track setup, rather every day wheels/tires that will see only very infrequent track use. If I were getting back into it, I would have dedicated track wheels/tires. Obviously, the most cost efficient route is to do nothing, and keep the OE 225/255 staggered arrangement. It is just not a setup I have ever preferred.
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      12-03-2015, 08:38 AM   #6
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ok...and then?
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'07 E90 335i - Automagic - Non-sport
MHD|Alpina Flash|Fuel It! Stg 2|VRSF:7"FMIC-DP-CP|TIAL BOV|cp-e DCI
Bilstein B6|E93 M3 FSB|SP Lowering Perches|M3 LCA|M3 Guide Rods|HPS 5.0
Summer: Sonic Tuning ST100 - 18x8.5 ET35 - Conti DWS 245/40/18 - 10/15 F/R spacers
Winter: Style 159 - 17x8 ET34 - Michelin X-Ice Xi2 225/50/17 - 10/15 F/R spacers
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