IS F (2008-2014) Discussion topics related to the IS F model

Rohanna RC10 fitment with swift springs

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Old 09-19-13, 10:05 AM
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sethISF
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Default Rohanna RC10 fitment with swift springs

I have a 2008 SFP IS-F, and I am about to order a set of the Rohanna RC10 19x8.5 +35 and 19x9.5 +40. I am lowered on swift sport springs. Tire sizes are going to be 235/35/19 and 275/30/19. Will I have to do any fender modifications to make these fit and will they be fairly flush with the fenders without the need for spacers?
Old 09-19-13, 10:17 AM
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vbb
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Your fitment will look pretty flush, more so in the rear than in the front. Visually speaking, it'll look good. Your front setup will fit just fine with no problems. Your rears are going to rub over large dips at speed and steeper driveways. You'll want to roll your rear fenders to prevent that from happening, or get wheels with a higher offset.
Old 09-19-13, 10:21 AM
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sethISF
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Thank you VBB. I was really trying to avoid having to roll any fenders. They don't make the rears in any different offsets. What if the rear were at stock ride height instead of dropped on swift springs?
Old 09-19-13, 10:53 AM
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If you do not like having fenders rolled, keep the rear in stock and with that wheel specs it will fit with no problem, now i'm talking about the rear you can imagine that you put 21mm spacers on the rear wheels, you still have someroom, just go get measure tape and measure from the edge of the stock wheels to the fender, you will know that.
Old 09-19-13, 05:03 PM
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vbb
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^^ I think you're saying he should put 21mm spacers (such a thing doesn't exist as far as I know) on his stock wheels to test fitment of the aftermarket wheels he's looking at? Because if he put spacers on those aftermarket wheels, he's gonna rub.

OP, if I were you, I'd keep the rear at the stock ride height, especially if you plan on running 275s in the rear. I think at the stock ride height, you should just barely clear without any rubbing. If you stepped it back down to 255s (the stock rear tire size) then you would be perfectly fine.
Old 09-19-13, 05:59 PM
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yjk1975
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I am lowered on BC racing coil with swift upgrade. I have front 19x 9 +30 245/35/19 and 19x10 +40 rear 275/30/19. Fits fine without any fender mod. I could have gone even more aggressive for more flush setup.
Old 09-19-13, 06:02 PM
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Originally Posted by vbb
Your fitment will look pretty flush, more so in the rear than in the front. Visually speaking, it'll look good. Your front setup will fit just fine with no problems. Your rears are going to rub over large dips at speed and steeper driveways. You'll want to roll your rear fenders to prevent that from happening, or get wheels with a higher offset.
This is just not true.
Old 09-19-13, 06:04 PM
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yjk1975
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Originally Posted by vbb
^

OP, if I were you, I'd keep the rear at the stock ride height, especially if you plan on running 275s in the rear. I think at the stock ride height, you should just barely clear without any rubbing. If you stepped it back down to 255s (the stock rear tire size) then you would be perfectly fine.
This is also very wrong. Lots of people run 275 with no problems.
Old 09-19-13, 06:38 PM
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Originally Posted by yjk1975
I am lowered on BC racing coil with swift upgrade. I have front 19x 9 +30 245/35/19 and 19x10 +40 rear 275/30/19. Fits fine without any fender mod. I could have gone even more aggressive for more flush setup.
If you're running those specs without any rub, I'm surprised, but I'll defer to you. I find it hard to believe that you're lowered much more than stock though, and you may not be lowered even as low as the swift springs would lower the OP. That all said, I guess you'd know. The flip side of that is my setup. I have 19x9.5 +29 on 255s and I was rubbing in the rear at stock ride height over large dips. A simple roll and I'm fine now. I know +29 is quite different than +40...but with a wider wheel and wider tire I figured he'd get rubbing for sure if he lowers. How far are you lowered in the back? Pics?
Old 09-19-13, 06:54 PM
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sethISF
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Now I'm confused lol.
Old 09-19-13, 07:32 PM
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Originally Posted by sethISF
Now I'm confused lol.
My bad! If you don't already have the springs installed, there is an easy solution. Get the wheels, mount the wheels and see how much clearance you have. You will be fine without lowering the rear for sure... but once you lower, I don't know.
Old 09-19-13, 07:49 PM
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I have the springs but haven't installed yet. The rear actually sits fine as is IMO. I was considering just lowering the front. As long as they don't rub, I'm fine with stock ride height in the rear.
Old 09-19-13, 08:50 PM
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Originally Posted by vbb
^^ I think you're saying he should put 21mm spacers (such a thing doesn't exist as far as I know) on his stock wheels to test fitment of the aftermarket wheels he's looking at? Because if he put spacers on those aftermarket wheels, he's gonna rub.

OP, if I were you, I'd keep the rear at the stock ride height, especially if you plan on running 275s in the rear. I think at the stock ride height, you should just barely clear without any rubbing. If you stepped it back down to 255s (the stock rear tire size) then you would be perfectly fine.
Sorry, i know that the 21mm spacer does not exist,but i mean that with his new wheels specs gonna stick out 21mm compared to the stock wheel.
Old 09-20-13, 04:17 AM
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Originally Posted by sethISF
I have the springs but haven't installed yet. The rear actually sits fine as is IMO. I was considering just lowering the front. As long as they don't rub, I'm fine with stock ride height in the rear.
I have the swift springs in the front only. It definitely doesn't need the drop in the rear. Or, you can get coilovers and set the drop how you want it. That guy who said I was wrong can't be that low at all in the back if he's had zero fender work.
Old 09-20-13, 07:18 AM
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Originally Posted by vbb
If you're running those specs without any rub, I'm surprised, but I'll defer to you. I find it hard to believe that you're lowered much more than stock though, and you may not be lowered even as low as the swift springs would lower the OP. That all said, I guess you'd know. The flip side of that is my setup. I have 19x9.5 +29 on 255s and I was rubbing in the rear at stock ride height over large dips. A simple roll and I'm fine now. I know +29 is quite different than +40...but with a wider wheel and wider tire I figured he'd get rubbing for sure if he lowers. How far are you lowered in the back? Pics?
Sorry no pics. I don't really like posting pics online. I have a pinky finger gap in the back and index finger gap in the front. I am running BC Forged HB29. By the way, the BC Forged wheels are very nice and affordable. I have owned DPE and Volks on my E46 M3 and the BC is nicer than the DPE and as nice as the Volks.

I did a lot of research on wheels and offsets before purchase and am pretty familiar with wheels and such. I've been modding cars since 1992. My 1st car being a 1987 Toyota Supra turbo.

Last edited by yjk1975; 09-20-13 at 07:25 AM.


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