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FD rear wheel sanity check for 18x12 wheels

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Old 10-13-14, 12:50 PM
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OR FD rear wheel sanity check for 18x12 wheels

I am contemplating the setup needed to put 335-18-30 Hoosiers on the rear of my autox FD.

The ideal backspacing is often stated at 7.5 inches, but I find that 7.25 inches provides better tire clearance of the Improved Racing trailing arms.

I know this because the current wheels are 7.5 inch backspace (18x10+50 with Hoosier 285-18-30) and a 6mm spacer is being used to provide some clearance.

Back to the 335's. Using the CCW Backspace Calculator an 18x12 wheel with 7.25 inches of backspace comes out to 18x12+19.

To you fitment guru's does, that seem correct?

How about others with 18x12 wheels, what offset/backspace are you using?
Old 10-14-14, 01:37 PM
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I know Jake Namer (S1mpsons, hamfist racing) is running the same Rota 18x12s I am on the back of his FD with 335/30/18 A6s.

They're +20s, I don't know if he has spacers on them or not. but he also has wider rear fenders. I would ping him,
Old 10-14-14, 03:54 PM
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Originally Posted by eage8
I know Jake Namer (S1mpsons, hamfist racing) is running the same Rota 18x12s I am on the back of his FD with 335/30/18 A6s.

They're +20s, I don't know if he has spacers on them or not. but he also has wider rear fenders. I would ping him,
Thanks, I didn't know about that wheel.

That offset is made to order for the FD.
Old 10-18-14, 03:00 PM
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Hi,
C14 18 x 12 +18mm rear. Here with 320 Yokohama slicks which are just as wide as the 335 hoosier. Volk also has a new ZE40 rim in 18 x 12 +20mm which fit just as nice too.
Attached Thumbnails FD rear wheel sanity check for 18x12 wheels-20131101_094211_resized-3.jpg  
Old 10-18-14, 03:15 PM
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Rear ZE40 18 x 12 20mm with a 335 hoosiers:
Attached Thumbnails FD rear wheel sanity check for 18x12 wheels-20140829_155729_resized.jpg  
Old 10-18-14, 03:24 PM
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Originally Posted by Taz
Rear ZE40 18 x 12 20mm with a 335 hoosiers:
Thanks!

Your FD looks really good.

I would be interested in seeing details of that fuel filler relocation.
Old 10-18-14, 04:28 PM
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I have 18x11.5 rear +42MM offset. it comes very close to the stock rear trailing arm.

so 188MM you can go in. I am slightly stretching a 285/30/18 tire. with a 335 you will need less offset to bring the tire torwards the fender.
Old 10-18-14, 05:21 PM
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Originally Posted by jkstill
Thanks!
Your FD looks really good.
I would be interested in seeing details of that fuel filler relocation.
There's a fuel cell in the car so the OEM fuel filler door was covered up with the pettit flares. I have pictures if that is the route you are going.
Cheers
Old 08-12-15, 04:01 AM
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Please post more pics of your car!

looks amazing!


Originally Posted by Taz
Hi,
C14 18 x 12 +18mm rear. Here with 320 Yokohama slicks which are just as wide as the 335 hoosier. Volk also has a new ZE40 rim in 18 x 12 +20mm which fit just as nice too.
Old 09-18-15, 11:17 PM
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Taz, your FD is pretty damn legit my man




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