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YOUR RESEARCHHow wide can I go on 18x10 + 18x8.5 on a C2?
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Run 18x9 and 18x11
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Leading evidence: 'Run 18x9 and 18x11' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Adjust caster and or add a spacer' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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I am running the Enkei on my car with same offset and added 7mm spacers with 225/40 in front and 285/30 in rear.
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Suggestion
The front is where you may have to adjust your caster and or add a spacer to prevent rubbing the wheel wells due to Nittos on an 8.5.
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Suggestion
I knew you were going to ask that...I am currently on a business trip, but will check when I get back and let you know.
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Hi all,
I was running a set of Federal 225/40-18 and 265/35-18 on my Enkei NT03+M 18x10-60 and 18x8.5-50. I'm lowered on PSS9s. I'm thinking the tires were a little bit narrow, and I'm wondering if I can go to something like 245 and 285, but I'm not sure whether I have clearance or not. I ran 10mm spacers on the rears and they were fine, and my mechanic told me I should be able to use a 10mm spacer in the front just fine as well.
I didn't like the Federals (came with the wheels), so I'm looking to go back to Nitto NT05s. If my memory serves me right, these tend to run a little bit wide, so maybe I should be careful?
Any thoughts welcome!
Howdy,
I had a similar situation as yours with my 99 C2, and went with my friends recommendation to go +10 on both Fr and Rr tires. I have Hankook RS3s, so 235 Front and 275 Rear. The rears are perfect without spacers (my rear flanges are not rolled though). The Fronts could use a 5mm spacer, and I will install them in the spring.
245/285 will be fine. You shouldn't need a spacer on the rear but it won't hurt anything. The front is where you may have to adjust your caster and or add a spacer to prevent rubbing the wheel wells due to Nittos on an 8.5. The 245 NT01s on 8.5 I had measured over 260.
285s on 10" wheel was standard on Mk2 cars, so should be fine at the rear anyway. I understand they can easy take 295s (which I'm considering next set)
So if my current wheels are 60... (sorry, I'm bad at offsets). Am I going to be too deep in, meaning I need a 5mm spacer, or am I 5mm too wide no matter what?
If your current wheels are 60s, then your outer edge is actually 5mm farther out and you have 5mm more clearance on the inside. 5mm spacers on 65 offset rims would be equivalent to where you are now. Does that make sense?
I struggle with the offset thing too.
THIS
site might help get your head around it all.
Ahh perfect, thanks. So in this case... I guess the only way I'd know if it works would be if someone that has stock 65mm wheels on a 5mm spacer. I'm somewhat suspicious this would work though... I don't seem to recall Mk2's having wheels that are significantly inset, which would mean that throwing a spacer on would probably rub on the fender, no?
Cool. So we sorted out that the inside of the wheel well will be just fine with the 285s on the Enkeis, since that's exactly my car.
@Slakker: based on your experience, I could even go wider, but one question - are you lowered? Because the OEM ride height I could probably put tractor tracks and never touch the fender, but since I'm lowered (to GT3 height), my tire wouldn't clear the fender if it protruded.
Update for anyone interested. I ended up getting 235/40R18 in front and 275/35R18 in the rear. The front is REALLY tight - on full lock, the wheels rub against the fender liner (but OK otherwise). However, they're spacered by 10mm, and they're very flush against the fender. Looks very good. The rear? There's a black hole in there. I need a minimum 10mm spacer to make the sidewall flush with the fender, which makes me think I could have easily gone 285 with a 5mm spacer, or maybe even 295 or so. In front, though, any wider and I would either not clear the fender liner or hit the fender when I bottom out (in fact, even now, I think it'll be a bit iffy). In the rear, Slakker was right - lots of space.
Thanks for all the help!
I don't think any of the combos should be an issue. I have two sets of wheels I use on my car.
Cargraphic with 8" wide 40 mm offset in the front and 10" width 47.5 mm in the rear. Tires are 245/35 and 285/30
and the other is
Stock MkII GT3 wheels with 8.5" wide 40mm offset and 11" with 65mm + 5mm spacer in rear which means my effective offset is 60mm in the rear. The tires are 235/40 and 295/30.
The car is lowered quite a bit and I will say, I do have some camber on the four corners but I have never had any rubbing except with the 245s on a locked turn with fender liner. That is it. If you need some pictures to see how it looks I can post. But it does look awesome
Cool, good info. Btw, your signature says Evoms stage IV tune... what's that, just out of curiosity? Didn't realise there are that many stages out for the nonturbo 996 engine.
I am not sure but if I measure to the top of the wheel opening you can compare that to the top of your wheel opening
Front is 24.5"
Rear is 25.25"
With Cargraphic wheels (would be slightly different with GT3 wheels)
Fitment issues aside - what is everyone's experience with how they drive.
Really looking to have my car more playful and willing to rotate a little bit. Really eliminate understeer and have the car turn in well at the limit or close to it. I'm already adding GT3 control arms and sway bars.
So debating on running MY02 with 10's in the rear and 9's in the front or going with 8.5 in the front and 11's in the rear with a 295 rear tire. I'm worried that going that wide will push me in the wrong direction for what I want.
Finally, 235 vs 245 for the front - any recommendation since many of you have experience with both.
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