12-16-2019, 01:59 AM | #1 |
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Apex SM-10 18x8.5 ET35 square setup?
Anyone running a square setup with 245/35 R18 tires on 8.5 ET35 wheels? Apex website says we must run some negative camber for this setup, any other hardware required, or can this be dialed in with stock M-Sport setup?
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12-30-2019, 07:36 PM | #2 | |
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Thanks! -Tom
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bthomas51862.00 |
01-04-2020, 03:31 PM | #3 |
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8" is a better width for the front on our cars. It's unfortunate that there are not more choices in this width.
I run 8" wheels all around for a square set up with 245 width tires. Works great and requires no adjustments to the camber. |
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bthomas51862.00 |
01-20-2020, 02:23 PM | #4 |
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01-20-2020, 04:35 PM | #5 |
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Im '17 xdrive on dinan springs with apex ARC-8 18x8.5 ET38. Run 235s that fit like 245s (rsrrs). only a slight rub on big bumps. 245 should fit fine as long as they dont run big.
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02-01-2020, 06:34 PM | #6 | |
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35 is too pokey. Even 40 needs some fender roll. |
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02-25-2020, 09:31 PM | #7 |
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8 is WAY too narrow in the front. You might as well not even bother to upgrade if you do that.
You can run 8.5 and 245 rubber (or basically 255 rubber depending on the manufacturer) https://www.2addicts.com/forums/show....php?t=1449314 |
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bthomas51862.00 |
03-05-2020, 09:57 AM | #9 |
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I believe that you will get better handling from a 225 tire on 8" rather than the 245s; especially if you also go with lighter wheels. The benefit for wider tires comes at the limits on track; in street settings it isn't an issue, mostly a marketing thing. I know this is heresy for the tuner crowd, but with wider tires the contact patch doesn't change size, just shape. The stiffer sidewall behavior of a 225 on 8" is something that you'll appreciate all the time, same for lighter wheels (tighter turn-in, less edge wear, and it effectively upgrades suspension b/c it isn't handling as much weight). The factory specs (245 on 8") are as poochy as you can safely run, and aren't optimal for handling (they probably do it either for comfort, or because everyone is so fixated upon wider numbers).
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03-05-2020, 10:15 AM | #10 | |
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The simple solution is don’t go with a 8” wheel. Wider is better, especially when you’re dealing with a 3500lb car with 50% over the front tires. |
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03-05-2020, 10:38 AM | #11 |
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Yes, that is exactly the thinking they are pumping up - wider is better. But not really, at least for most. For a 2'er 'wider' means fender rolling and camber plates, getting pretty far from daily driveability. Tire patch area is a function of pressure and weight, not tire width. The fit of the tire on the wheel has a lot more to do with daily handling than 20mm of section width; go to a stickier tire and you'll really maximize your gains. In racing they go for wider (but on appropriately sized wheels) because the extra material gives more heat-sink, and the short wide contact patch distributes wear better. I can tell you that switching to this setup really cut down on edge wear, and improved turn in noticeably for me. But then sometimes I feel so inadequate that my fronts don't look meaty enough that I just want to run away and hide - everything is a tradeoff .
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