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FD Rim Size- please check my math

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Old Oct 21, 2007 | 07:22 PM
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FD Rim Size- please check my math

So the guy down the street is selling his rims from his Supra. The fronts should fit according to the Excel sheet/sizing chart. The problem is the rears. They're 18" 10.5" and +44mm off offset.

The chart says it will rub 0.21" on the inside and have 0.21" clearance on the outside. So that should be 5mm of spacer needed. Then add the 6mm that I need to correct the offset, and it gives me 11mm of spacing. So if I buy a 11mm spacers, everything should be good, right? Of course that's a fit with 0" on both sides... Which is what has me nervous!

Anyone have any experience running these large tires in the rear? I know it's silly to run a 10.5" rim, but the price might be right...

Thanks in advance for any help
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Old Oct 22, 2007 | 01:33 AM
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I'm not sure whether the width can be handled in a FD but seem a bit too agressive. And with the 11mm spacer, is there adequate space between the lug nut holes in the rims to accomondate the lug nut from car? I am assuming that you are using the bolt-on spacers that usually come in 10mm, 15mm, 20mm, 25mm.
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Old Oct 22, 2007 | 01:51 AM
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As a second thought, I think 10.5" rim may need wide body and a lower offset.
Perhaps some other folks can join in to discuss this.
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Old Oct 22, 2007 | 02:04 PM
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You should be able to get away with it. I have a 18x10 +43 in the rear with a 285/30 tire and I barely rub on stock fenders.

For your 10.5 +44 you'll DEFINITELY need aftermarket coilovers, toe links and trailing arms to be able to clear on the inside, and you'll probably need to roll the fender a little to clear on the outside if you go with anything bigger than a 265 rear tire. I'd get either a 275 or 285, so rolling will be required, but should be fine.
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Old Oct 22, 2007 | 02:07 PM
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Originally Posted by 2ndlife
As a second thought, I think 10.5" rim may need wide body and a lower offset.
Perhaps some other folks can join in to discuss this.
A lower offset would push the wheel further out and require aftermarket fenders or super stretched tires. The +44 should work as long as he has aftermarket suspension, toes and trails on the inside. Be careful what you say when you're giving advice about offsets, its better to not give any info then to give bad info.
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Old Oct 22, 2007 | 02:59 PM
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I was originally thinking of FD but later mistaken the subject car as FC. Thanks for correcting it.
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Old Oct 22, 2007 | 11:38 PM
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Guys - Thanks for the input. I'll see what I can stuff under there!
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Old Nov 17, 2007 | 03:11 PM
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I would think they would work with a slight fender rolling. But damn if he lives down the street go mount them up and tell us first hand how they fit.


18X10 with 43 here also and I have plenty of room on the inside (1/2" at least) but its really close to the untouched stock fenders.
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Old Nov 20, 2007 | 01:54 PM
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I use 16x8 and 16x9 Mark IV Supra twin-turbo wheels on the FD, but I had to bore out/enlarge the center hub hole.

I would test fit first.

:-) neil
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