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11-30-2015, 03:11 PM | #1 |
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Can I do it? 18x9.5 + 38, 1" Springs
Hi folks,
I currently have 18x9.5 +38 ambit Re02's. I never had a rubbing issue but my tires are pretty close to the front strut? This upcoming winter break, I will be purchasing Swift Spec R lowering springs. This will drop my car 1.1" in the front and 1" in the back. I will also be purchasing OEM crashbolt and go as negative as I can, so probably about -1.5. Im not too sure how camber works but I am imagining that the onlything that is tilting is the wheel, towards the shocks. Anyways, the question is, will I experience rub with the spring perch/strut or should I buy a 3-5mm spacer. Or, are the OEM crashbolts even worth it and -1.5 camber won't do/look much. Thanks! |
11-30-2015, 03:25 PM | #2 |
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Plans for the car?
The OEM crash bolts usually max out at about -1.3 or -1.4. I don't remember anyone getting to -1.5. At that amount of drop you will gain rear camber because of how the suspension works. I think you'll end up at around -1.8 in the rear IIRC. I'll be surprised if that doesn't rub in front with the crash bolts maxed out. I have 18x8.5 +48 with the crash bolts and just barely clear the spring perch. |
11-30-2015, 03:25 PM | #3 |
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You wont rub but what is your tire size?
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The Following User Says Thank You to 86Tony For This Useful Post: | HachiEnam (11-30-2015) |
11-30-2015, 03:34 PM | #5 |
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Oh thought I posted it but my tire size is 245/35/R18 MPSS
How're you so sure it won't rub? Last edited by HachiEnam; 11-30-2015 at 03:49 PM. |
11-30-2015, 03:36 PM | #6 | |
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The Following User Says Thank You to HachiEnam For This Useful Post: | LOLS2K (11-30-2015) |
11-30-2015, 03:58 PM | #7 | |
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11-30-2015, 04:03 PM | #8 |
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I just had 245x35x18 tires fitted to 18" RE02's today. I have a 1" drop, and SPC camber bolts in the front. The rears will be just fine -- but the fronts will rub with ANY additional negative camber (outside of what you get naturally with a 1" drop). I was running -2.2 camber in front with just the SPC bolts (maxed out), but the wheel itself hit the spring perch and the camber had to be reduced in the front to -1 to get the wheel and tire to fit without rubbing. I've got about 2mm of clearance to the spring perch (a ruler barely fits between the spring perch and tire).
I can tell you with certainty that you will rub with anything more than -1 degree of camber if you are on stock struts and 1" drop with RE02 and 245x35x18. If you have more than a 1" drop then you will not be able to add any additional camber with the bolts, and you may start to rub just with the additional negative camber that a larger drop provides. AKA: If you drop 1.1" in the front then you may end up with -1.3 camber instead of -1. Depending on the true size of the tire you have chosen (even in a 245x35x18, different manufacturers measure tire size differently) you may rub and may be forced to install a spacer. With that being said, I don't recommend installing a spacer, unless you like a lot of poke. Prior to the wheel install: Front: -2.3 camber Rear: -2.2 camber After wheel install: Front: -1 camber (with no room to add additional camber via SPC bolts due to rubbing risk) Rear: -2.2 camber |
The Following User Says Thank You to ajcarson11 For This Useful Post: | HachiEnam (11-30-2015) |
11-30-2015, 04:09 PM | #9 | |
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11-30-2015, 04:25 PM | #10 | |
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I'm dropped 1" on Hotchkiss springs. If i were on coilovers then I would not have any issues with clearance and could run -2 camber without trouble. |
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The Following User Says Thank You to ajcarson11 For This Useful Post: | HachiEnam (11-30-2015) |
12-08-2015, 02:33 AM | #11 |
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Can anything be done to the spring perch in terms of minor cutting to increase clearance in a safe manner? Or is it something frowned upon?
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12-08-2015, 03:18 AM | #12 |
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You can probably grind it down a couple mm. But it is a band-aid fix. When the suspension compresses the wheel gains camber, so the problem still exists. You don't want to find out deep in a turn that it rubs... A better fix would be a small spacer.
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The Following User Says Thank You to swarb For This Useful Post: | 504 (12-08-2015) |
12-08-2015, 08:15 AM | #13 |
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You can take a grinder or dremel to the perch to gain a few mm's. Have to be honest -- On driver side I can fit my pinky, and passenger I can fit 2 credit cards. I've done some hard cornering and have yet to rub on either side. If you can fit a credit card you'll be OK for anything short of the track.
Save for coilovers.... I don't like the front poke at all, even with the natural camber from 1" drop. |
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12-08-2015, 06:43 PM | #14 |
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I ran H&R sport springs with the same size wheel and same tire and tire size with stock bolts, and no additional negative camber and even though it was close, I didn't get any rub. I wanted to add negative camber, but there for sure is not enough room to do so.
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