04-06-2019, 03:05 PM | #23 |
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All of the wheel specs and recommended offsets are in the first post.
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04-06-2019, 10:55 PM | #24 | |||
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We understand enthusiasts will have different preferences when it comes to design, however, through community surveys we have found the EC-7 to be very popular. We believe the design lends itself to the F87 M2 chassis, and they are extremely resilient on and off the race track. We are always open to offering these wheel specifications in another design, like the ARC-8, if the demand is there. 19" ARC-8's will clear the M2C brakes, and there are sizes currently available that M2C enthusiasts can use. ARC-8 19x9.5" ET33 square, with 5mm spacers up front would be one of them. Here is a photo of 19" ARC-8's over the massive M4 CCB's. - Ryan
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04-07-2019, 02:44 AM | #25 |
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The note that says that fronts will require camber to clear the fenders, does that apply to either tire size or only the 275's?
How much negative camber is required? And can it be achieved without camber plates? |
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04-07-2019, 10:52 PM | #26 | |
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We positioned our 18" and now 19" M2 specific front wheels as close to the suspension as possible (9.5" ET28 offset) to mitigate the amount of negative camber required, while still maintaining proper clearance to account for tire deflection under load. Any higher of an offset and you are likely going to make contact with the suspension and would have to install small spacers to gain back the clearance needed. We came up with a direct bolt on solution that does not require spacers. There may be customers out there that are able to accommodate the 9.5" ET28 up front with the stock camber settings, but they are likely at stock ride height and have a relatively thin 255 or 265 compound mounted. With that said, in most instances, a modest amount of negative camber will be beneficial to prevent rubbing. You can pull the factory camber pins and that will typically net you somewhere between -1.6 & -1.8 degrees. At the end of the day, for performance driving enthusiasts, adjustable camber plates are one of the best modifications you can do to the car. Whether its canyon runs or HPDE's, negative camber will offer a host of benefits beyond extra fender clearance. Negative camber should not be thought of as a barrier. Do you plan to track the car? - Ryan
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04-08-2019, 04:42 AM | #27 |
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Really like the wheel design!
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04-08-2019, 10:27 AM | #28 |
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04-08-2019, 08:17 PM | #29 | |
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Either way, it's worth it I guess to invest in camber plates. |
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04-10-2019, 12:38 AM | #30 |
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Are there any wider-than-stock tires - but with a stock aspect ratio (i.e., 35) - that would work on these wheels, assuming the car has a stock suspension? (Something like F:255/35/19; B:285/35/19?)
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04-10-2019, 06:48 AM | #31 | |
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04-10-2019, 10:35 AM | #32 | ||
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04-10-2019, 11:45 AM | #34 |
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04-10-2019, 12:49 PM | #35 | |
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04-14-2019, 02:12 PM | #36 | |
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But I would like a track setup more on the lighter side. The setup you guys offer for M2C has a total weight of 94 pounds which is an improvement compared to the approximately 101 pounds the stock 788 weigh. I checked on the page but ARC8 dont come in 19x9.5 ET28 and 19x10.5 ET45. You do offer a 19x9.5 ET33 which with a 5mm spacer gets to same front spec but 10.5 rear I found only comes in ET22. How many sets you would need interest in to build the ARC8 set in 19x9.5 ET28 and 19x10.5 ET45? If I go off of the weight you guys list for 9.5 and 10.5 ARC8 the total weight for a set would be roughly 87 pounds which is a solid improvement over the stock 788M wheels.
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04-15-2019, 10:19 AM | #37 | |
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04-15-2019, 02:10 PM | #38 | ||
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--Dylan
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04-15-2019, 05:05 PM | #39 | |||
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I was about to just say fuckit and order them from my shop guys and do the test fit but wanted to avoid getting them and then having the spokes hit the caliper. Hopefully you guys come out with an ARC8 or another set that is actually light that clears the 6 pots. If not I see myself getting the 763m for track duty.
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04-16-2019, 06:28 AM | #40 | |
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04-16-2019, 11:23 AM | #41 | |||
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Here is the important part that many forget. As you increase tire width over stock, the aspect ratio should naturally decrease in an effort to keep the rolling diameter as close to stock as possible. In other words, a 35 aspect ratio and a 30 aspect ratio can actually be close or equivalent in sidewall height at the appropriate respective widths. If you kept the same aspect ratio with a substantially wider tire, you would end up with a tire/sidewall that is much taller than stock - this would quickly lead to issues. Often times the wider tire is slightly shorter, but still very much acceptable. Example Stock front tire - 245/35-19 = 25.75" tall Correct aftermarket front tire - 275/30-19 = 25.5" tall Difference in diameter = -0.25" or -1% vs. Stock front tire - 245/35-19 = 25.75" tall Incorrect aftermarket front tire - 275/35-19 = 26.58" tall Difference in diameter = -0.83" or 3.1% If you only increase the tire widths by one size over stock, 255/35-19 front and 275/35-19 rear, you can get away with running a 35 aspect ratio as the increase in height over stock is nominal. The popular Bridgestone RE-71R's come in these sizes, so I have a feeling many enthusiasts will try these out with our wheels. Stock front tire - 245/35-19 = 25.75" tall Correct aftermarket front tire - 255/35-19 = 26" tall Difference in diameter = 0.27" or 1% Quote:
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- Ryan
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04-17-2019, 01:33 PM | #42 |
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FYI to anyone who joined the Group Buy for the EC 7, I clicked to join the gangup thing but didn't realize there was a second step to "lock in" your per-order. I had to go back and hit the "PLEDGE" option to actually be part of the group buy.
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04-17-2019, 01:47 PM | #43 | |
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04-17-2019, 11:37 PM | #44 | |||
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