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Supra since '86
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No body modifications. Stock suspension, hubs/stubs and brakes. Measured to the nearest 1/16" with 1/16" gap.

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All is constant except the front wheel back spacing due to the strut tube angle.
 

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If this backspace/offset conversion chart from that thread is accurate,
Then wouldn't the 5.6" measurement in the original post, this thread, mean that you couldn't exceed +0 offset on a 10" rim on the rear of a MKII?
But that is not the case:
I think that [email protected]+6 with a 295/30 is perfection for the rear @ full tuck you have ~1/4th clearance inner and outer well but you will have to shave a bit off the flare. BUT you could go [email protected] with a 285/30 to be more aggressive or you could go [email protected]+12 with the 285 trying to fit with out modding the flare or using a 295 @ the same offset thinking yea it should fit but i may have to hammer the inner well ~1/8.......
What am I missing?
 

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the thing that people dont realize is how horrid offset is in measuring! backspacing is much more accurate. offset is only measuring the acutal drum of the wheel and doesnt account for the actual lip of the wheel so in turn is not accurate. actual backspacing is measured from where the wheel sits on the rotor to the outside of the wheel. thats why offset to backspace charts are so controversial. just a little info for people.
 

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15x8.5 +15 would be just over 5in backspacing. 8.5+1=9.5/2=4.75 + 15mm(15/25.4=0.59in)=5.34in backspace. It should clear the strut housing. Tire would depend on bulge.
 

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15x8 +15 would be less than 5in backspacing. 8.5+1=9.5/2=4.25 + 15mm(15/25.4=0.59in)=4.84in backspace. It should clear the strut housing. Tire would depend on bulge.
William... thanks for the reply on this. Your calc has one part off (s/b 9.5/2 = 4.75). Do you think that extra 0.5" will hit the housing?
 

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I would say it should be ok. I ran 17x8 +13 successfully. Worst case a 3-5mm spacer would make it a sure thing.
 

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William... thanks for the reply on this. Your calc has one part off (s/b 9.5/2 = 4.75). Do you think that extra 0.5" will hit the housing?
Fixed. I have some 15x7 0 offset ARE Mesh wheels (4In backspacing). I will try to mount one and see how much room there is to the strut housing.
 
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