Another fitment question...

I have 17 X 9 +45s.

So I see from the wheel fitment guide that a 245 tire will fit on a wheel with +45 offset on stock suspension without rubbing (the rear). It is the widest tire for that offset that will fit without rubbing. My question is, if I am running a 255 tire but with UK suspension at -2 degrees of camber in the rear, will I need to roll? I have heard that quote passed around which says "for every degree of camber, you get 10mm more additional clearance" or something like that. I would prefer to not do the rears if possible. Thanks again.

 

So from looking at this chart, it is suggested that (on the high end) a +49 offset will fit in the rear with 245 tires. The rear stock rims have +65 offset and a 245 tire. From this information then, it appears that there is roughly 16mm of clearance. However, after looking at the rear fitment last night, it appears that the edge of rim/tire is aligned with the edge of the lip of the rear fender. Now if a +49 offset w/ 245 tire setup was used in the rear, that would mean the edge of tire/rim will be sitting directly underneath the fender lip. If that’s the case, won't this be an issue in the case of bottoming out? I am also looking into getting new wheels but it appears that (at least in the rear) there is absolutely no room for an offset less than the stock +65 w/o the risk of potentially damaging the fender lip, even at stock height. This is strictly for only running 245 tires and stock suspension. Can someone solve my dilemma?

 

I second sukii's question about the rear. I've noticed the same on my stock ap2 rear with stock 245/40/17 re050. I'm interested in seeing if I can use a 17x8.5 +45mm with 245/40/17 tire in the rear now and later when I lower the car. From my observation of the car at its current state, it would seem impossible for the rear to clear the additional 20mm without a) fender roll and/or b) more neg. camber.

Could some one with actual experience with 17x8.5 +45mm rear with 245 tire chime in? Thanks in advance.

 

You guys are forgetting that negative camber increases with suspension travel. :-) So, that clearance you are measuring doesn't mean a whole lot.

Ken

 

That chart of mine came from fitment reports from this very forum coupled with some simple math....

 

True that negative camber will provide additional clearance but it would not be beneficial at stock height. I'm just worried that if I decrease the offset at all in the rear, the tires will potentially damage the fender lip. I would really like to stay away from modifying the fender as well. I guess the cheapest alternative will be to get some spacers and see if I clear.

 

Well that's fine; you don't need it at stock height.

It won't. As soon as the suspension starts to move, the camber gain pulls the top of the tire in.

Trust me, the chart is accurate. It's not a guess, it's data compiled from actual users. In fact, it's on the conservative side. People have gotten away with lower offsets than shown here.

<Disclaimer>
Unless something is wrong with your car in particular...
</Disclaimer>

 

Hey guys,
Yet another offset question.
Here are the wheels:
17x8.5 front +47
17x9 rears +47

I'm 90% sure they will fit.

1. Will they fit on stock suspension, including stock height?
2. Will the rear sit flush or poke?
3. I'm happy to run a 215/40/17 tyre on the front end, but will this more likely rub on the suspension or the front fender? And can i avoid this by rolling the front?

Cheers.

 

The front will be close but should be ok.

You didn't say what rear tire you plan to use so we can't say how the fit will be.

Cheers,
Ken

 

say i were to use a 225/40(ish)/17 tyre with a 17x9 +47 rear wheel.

How much camber would be required for flush fitment?

Cheers.