Choosing the right offset for the widest possible tires
#1
#3
if you're dead set on 8.5/10 setup, there are still many variables like your fender (rolled or pulled), ride height, camber settings that can really change the offset of the wheels.
I'd say, generically, i wouldn't put wider than 255 front and 285 rear on 8.5/10
with that said, assuming you're rolled flat, no pull, at a conservative drop and camber (1.5 drop all around with -1.5 camber), i'd say you shouldnt do lower than +35 front and +40 rear
I'd say, generically, i wouldn't put wider than 255 front and 285 rear on 8.5/10
with that said, assuming you're rolled flat, no pull, at a conservative drop and camber (1.5 drop all around with -1.5 camber), i'd say you shouldnt do lower than +35 front and +40 rear
#4
That's not right though. On a 9.5" rim +49 offset with stock camber 295s fit with rolled fenders. So what offset do I need to go to 305s or more? I know it's possible but need to know offset required. It's something higher than +49, like maybe +55.
Last edited by Andrei; 11-21-2010 at 04:14 AM.
#6
Well 295s are wider than a 10" rim. 295mm is equal to 11.6 inches. So it doesn't matter if the rim is 9.5" or 10" because 295mm is wider than both rims.
I'm guessing 305s fit with a +59 offset. Since 295s with a +49 offset fits, to go to 305s I need to add 10mm to the offset to make it +59.
305mm is 12" wide which means the foot print will be 11" at least the hole entire time I'm driving the car. That's a huge foot print.
Also it seems that the lower the car is the more positive offset I can run to fit wider tires and wheels? The only thing in the way is the strut but it angles toward the middle of the car the higher it goes so that means that if I lower the car I get more clearance for positive offset. I could be wrong.
I'm guessing 305s fit with a +59 offset. Since 295s with a +49 offset fits, to go to 305s I need to add 10mm to the offset to make it +59.
305mm is 12" wide which means the foot print will be 11" at least the hole entire time I'm driving the car. That's a huge foot print.
Also it seems that the lower the car is the more positive offset I can run to fit wider tires and wheels? The only thing in the way is the strut but it angles toward the middle of the car the higher it goes so that means that if I lower the car I get more clearance for positive offset. I could be wrong.
Last edited by Andrei; 11-22-2010 at 02:59 AM.
#7
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#8
Can you please tell me exactly how much space you have between the top of the tire and the strut measured in inches? And also, and this more important, the space between the top of the rim and the strut? All of that while the car is on the ground not lifted and measured right in the middle at the top.
This is what it looks like. The lower the car is the more positive offset you can run. The strut angles toward the middle of the car and it's the first thing it could rub against. But also it cant be too low before rubbing above but there is room above as long as the car is not crazy low.
Last edited by Andrei; 11-22-2010 at 03:27 AM.
#10
I'm guessing that you have very little room between the inside edge of the rim and strut (maybe 1"-2") but room increases as the suspension compresses.
Last edited by Andrei; 11-22-2010 at 03:54 AM.
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