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05-13-2019, 04:06 PM | #1 |
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Can I run style 67s for autocross?
Hi,
I posted this in the tire section and thought I’d ask here as well. I just bought a new to me 08 e90. I’ve got a set of fresh re-71s that I use for my e46 that I would like to use through the rest of the season. Will it hurt the car or handling dynamics or create a safety issue to use the e46 style 67s? I’m a noob when it comes to dealing with offsets. The rear offset is pretty close, but the front is way different. E46, Style 67 18x8, 18x9 Front Offset: ET+47 Rear Offset: ET+26 E90, Style 220M Front Offset: ET+29 Rear Offset: ET+23 Bolt Pattern: 5 x 120 Factory Setup, Front: 19 x 8.5 Factory Setup, Rear: 19 x 9. TIA for any help. |
05-13-2019, 09:19 PM | #2 |
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I'm not a fan of running any sort of spacer larger than 5mm on the track (or at all, really, but especially at the track).
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05-14-2019, 11:00 AM | #3 |
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220M are 9.5" in the rear.
The wheels can be made to fit with spacers but there are far better options. The front will need an enormous spacer. I see things a little differently when it comes to tires. I almost never "use up" my tires to the point that they are trash. I try to sell them while there is still some life (and value). I would recommend selling what you have and move on to a wheel / tire that fits properly. Why suffer with improper fit to save a few hundred dollars? Doesn't seem worth it. You could also transfer the RE71 over to a better fitting wheel. I saw in your other post that you have 275/245 tires. Why not transfer them to a set of 18's in proper e9x specs? You could even sell the 245's, get another pair of 275's and run 275 square.
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'04 M3 - Fall Line Motorsports Built Race Car - S65 swap, Dry Sump, Bosch Stand-Alone ECU, Drenth Sequential Trans, MCS 3-Way, Flossmann Wide Body, Brembo Motorsports Brakes, Drexler LSD, BBS E88 Etc. INSTAGRAM - @Slicer_M Last edited by slicer; 05-14-2019 at 11:19 AM.. |
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05-14-2019, 11:04 AM | #4 |
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I agree with slicer, you could very easily sell those wheels and tires to cover a huge chunk of the cost of new ones.
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05-14-2019, 11:10 AM | #5 |
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And then there's the cost of spacers and extended lugs. You would need to buy spacers to accommodate this setup which will become useless to you in the future. A quality spacer kit with lugs is at least $100. You can resell in future but it's another cost to consider. Cut your losses and move on.
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05-15-2019, 10:46 AM | #6 |
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Re-use the tires on a different set of wheels. That's just a waste of time trying to get those to fit properly up front without running a ridiculous amount of spacer, and it's going to suck on top of it because wheel width matters as much or more than tire width in autocross - supporting the tire well is a real performance benefit. I'd think whatever street wheel/tire you have on proper wheels would get you 95% of the performance of your E46 setup while you look for a cheap set of proper size 18's, of which there are many on here. You're going to be into at least $100 just in spacers to get these fitting somewhat properly up front...spacers you'll never use again once you have a set of decent 18's for the E90.
And if you choose wisely you can use your E90 wheels on the E46 too, just not in a "stock" class
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Last edited by Richbot; 05-15-2019 at 11:13 AM.. |
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05-15-2019, 12:10 PM | #7 |
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^ Agreed, plus it's a new car so just focus on learning how it behaves in stock form.
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