cheins Posted September 13, 2017 Report Share Posted September 13, 2017 I’m considering trying 15” wheels on our e36 but need to know how much room i need for brake caliper clearance. Does anyone have a BMW 15” 5x120 wheel they could measure the inside diameter of? Thanks! Quote Link to comment Share on other sites More sharing options...
ABR-Glen Posted September 13, 2017 Report Share Posted September 13, 2017 Most E36 had 15" stock wheels, if you are running the stock (non-M) brakes they should fit in a 15" wheel. 1 Quote Link to comment Share on other sites More sharing options...
Technical Advisory Committee Andrew D Johnson Posted September 13, 2017 Technical Advisory Committee Report Share Posted September 13, 2017 F1 1abs ran 15s and was VERY successful in chump. Quote Link to comment Share on other sites More sharing options...
cheins Posted September 13, 2017 Author Report Share Posted September 13, 2017 The only 15" 5x120 wheels I've been able to find are 7" wide so I'm thinking about going with steel nascar style steel wheels 9" or 10" wide. I don't have a 15" BMW wheel to measure the inside diameter and wanted to double check before ordering. I'm running stock brakes front and rear. Quote Link to comment Share on other sites More sharing options...
ABR-Glen Posted September 13, 2017 Report Share Posted September 13, 2017 I have one I can measure (if I remember), but just straight up inside diameter is likely to be less of an issue than the area around the "spokes", which is harder to measure. Quote Link to comment Share on other sites More sharing options...
cheins Posted September 13, 2017 Author Report Share Posted September 13, 2017 Hmm. I see what you're saying. I saw an e30 at Gingerman this year with steel wheels but didn't look close enough to see the set up. Quote Link to comment Share on other sites More sharing options...
Technical Advisory Committee Andrew D Johnson Posted September 13, 2017 Technical Advisory Committee Report Share Posted September 13, 2017 15 minutes ago, cheins said: Hmm. I see what you're saying. I saw an e30 at Gingerman this year with steel wheels but didn't look close enough to see the set up. @Hi_Im_Will Quote Link to comment Share on other sites More sharing options...
Hi_Im_Will Posted September 13, 2017 Report Share Posted September 13, 2017 32 minutes ago, cheins said: Hmm. I see what you're saying. I saw an e30 at Gingerman this year with steel wheels but didn't look close enough to see the set up. Bassett D-hole 15x10, 5" backspace, 1/4" spacer. We run them with 245/40R15 Hankook RS4s. The center mounting pad interferes with the brake caliper on E30 without a spacer, but probably clears on E36 given the larger rotor diameter. http://www.bassettwheel.com/dhole_lightweight.html or a smidge lighter: http://www.bassettwheel.com/1510_inertia.html Quick look says E36 also needs 5" backspace. Use 5x4.75 bolt pattern - it's close enough to 5x120 for steelies and their terrible machining tolerances. Add the spacer if needed to clear the caliper. Quote Link to comment Share on other sites More sharing options...
dogtired Posted September 13, 2017 Report Share Posted September 13, 2017 I have 8 E34 basket weaves for sale. Quote Link to comment Share on other sites More sharing options...
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