02-22-2015, 10:17 PM | #67 | |
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02-22-2015, 10:44 PM | #68 |
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02-23-2015, 01:13 AM | #69 |
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Do you think i would rub with 255 all around with stock suspension setup? I'm looking at the PSS but i heard that michelin tires are fatter and may require going down a size.
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02-23-2015, 07:38 AM | #70 | |
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Hi, We do have the M235i pads in RS29, please contact one of our US distributors. http://www.pagidracing.com/service/distributors/ Thanks Best Regards Andreas pagid@braketechnology.com |
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02-23-2015, 07:55 AM | #71 |
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I also received the following from HAWK on February 12:
We do not offer pads for your vehicle. The FMSI part numbers are D1609, and D1656. We have initiated production on pads for your M235i. Please check back with in April for updates. Best regards, Edwin Mangune Hawk Performance Products Group emangune@carlislecbf.com |
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02-23-2015, 12:02 PM | #72 |
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very unlikely. to clear the strut, the tire must poke a good bit. my test fit of 255s with stock camber showed clearly that compression would cause interference with the fender.
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02-23-2015, 12:05 PM | #73 |
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Yes, you would rub. You need a relatively aggressive offset to fit a 255 wide tire without hitting the strut. In order to do so, you'll have some poke, and in order to deal with that, you'll need camber plates.
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02-23-2015, 01:01 PM | #74 | |
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Was thinking 18x8.5 +38 all around with 255s, stock everything. Shouldn't this work with no rubbing? Sorry I'm just reading different information and trying to find out whats right. |
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02-23-2015, 01:07 PM | #75 |
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no, sorry. these cars are hard to get rubber under, especially in the front.
Last edited by rwalker; 02-23-2015 at 01:17 PM.. |
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02-23-2015, 01:14 PM | #76 |
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02-23-2015, 02:45 PM | #77 |
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02-23-2015, 10:17 PM | #79 |
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i think either one but maybe
Liquidpaper has more insight what would be the advantages/disadvantages of 35 over 40 tire? Last edited by pikcachu; 02-23-2015 at 10:25 PM.. |
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02-24-2015, 12:16 AM | #80 |
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02-24-2015, 12:31 AM | #81 |
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well i was browsing on Tirerack and there are almost no perf tire in 245/35-18 (or 17)...
so i guess it's 245-40... Also found lower profile means less cushion so it acts like if you have a stiffer suspension and viceversa... |
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02-24-2015, 12:38 AM | #82 |
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A few months back, I thought about going to a 245/40 tire on the rear (stock wheels) so I could move away from the PSS (no one makes 245/35/18 other than the Michelin in the PSS).
However, you're going to run into the issue of a larger rolling diameter. So, if you don't know, the three numbers in a tire rating (245/40/18) stand for three different things: 245=mm tread width 40=sidewall height as a function of % tread width 18=diameter of tire So, if you are going from a 245/35/18 to a 245/40/18, you are ending up with a 5% increase in sidewall height. This is bad. It really screws up several systems in the car which rely on a certain rolling diameter for the wheel/tire (gearing, speedometer, TPMS, traction control). You want to stay as close to the stock rolling diameter as possible. Use willtheyfit.com as a good calculator. Here, you'd end up with a speedo error of -3.75% (you're moving 3.75% faster than what your speedo says) moving to the 40 sidewall. This is very, very bad (you NEVER want to have an error over 3%, and anything over 1.5% is not so good). If you want to keep the stock wheels, you're better off running 255/35/18 in the back and 225/40/18 in the front. Everyone makes those sizes, and although the manufacturer specs say that you need an 8.5"minimum to run a 255 wide tire, you'll be fine with an 8" wheel. I was running 255/35 Direzza II's on my stock rear tires, and they did just fine. |
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02-24-2015, 02:00 AM | #83 | |
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02-24-2015, 02:22 AM | #84 | |
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http://www.willtheyfit.com/index.php...et2=20#content so your tire will actually be about 16mm taller so your speedometer will read 2.5% slower |
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02-24-2015, 12:50 PM | #85 | |
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Last edited by ocN55; 02-24-2015 at 02:20 PM.. |
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02-24-2015, 03:38 PM | #87 | |
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If you have an 8 inch in the back, move to 255/35 tire. The rolling diameter between a 225/40 and a 255/35 is almost exactly the same. |
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02-24-2015, 07:48 PM | #88 | |
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