ASK ALL WHEEL/TIRE FITMENT QUESTIONS HERE - The Official Wheel/Tire Fitment Thread

[dishwab]

Yup, 5-8mm will work fine without any rubbing or rolling.

Cheers man, your help is always appreciated!

[S13_E30]

Don't have a question about fitment yet but I would like to give props to Mystikal for answering everyone's questions. You are truly the Wheel Fitment expert.

[randomtask37]

Sorry everyone, I was down in MD for H2Oi for a bit over a week. I'll try to catch up today.

Quote:
Originally Posted by randomtask37
without rolling fenders, can you fit 18racing rota slipstream 16x8 4x100 et20 hb57.1 on an e30 sitting low on Ground Control coil-overs? if so, what size tires... if not, how much rolling do you think would be necessary?

205/50. No rolling needed.

I appreciate the input. But the more I think about it, I think id like to go bigger if possible. Now that ive done some more research, and according to tirerack.com, seems like 205's are too narrow for 8 inch wide rims. Tire rack lists 215 as the minimum for 8inch wheels. 215/45 or maybe even 225/45 seems like the way to go.

if the height of the tire is concern, the 205/50's would be tallest of the 3 options. however, if width is the issue i understand why you recommend 205... but id really like to get at least 215's so the tires aren't stretching.

205/50 diameter (wheel+tire) = 611.4mm
215/45 diameter (wheel+tire) = 599.4mm
225/45 diameter (wheel+tire) = 608mm

So the question: is width the fit concern? can i fit 215/45s?

[thirdlobe]

Well the wheels I ordered wont be in on the time frame I need them in so I am off to hunt for something else as well. I ran across these today and wanted to see what it would take to run these wheels on a 1991 318is? on factory 4 lug?

Here are the specs from the guy selling them:
Wheels- ARE 398
Specs- 17x9.5
5x120.7
offset- seller is saying +56 E30SPDFRK says they may be +38

I know I would need adapters but my question is how much poke will that give me? Is it possible to run these? what adapters would I need to clear my shock and not have some crazy mexi poke go on.

Thanks,

[E30SPDFRK]

Here is my friend Jeff's car with 16x9.5 all around. He was running et3 up front and et-2 in the back with 205/45's. The front wheel was about 2mm off the strut housing, so what you see is about the minimum amount of poke without getting camber plates.



The rear had plenty of room left on the inside, we just had it poking so that it matched the front better.

[thirdlobe]

^so then maybe 40mm adapters all the way around to make it work.

[E30SPDFRK]

With 17's you can run slightly higher offsets. You could probably get away with et5-6 up front, but it would be very close. In the rear you could run anywhere from et25 all the way to around -5 depending on how you want them to sit.

[thirdlobe]

assuming that what you recall as far as the offset being 38. I dont mind the look of your buddies car at all so for me the 40mm adapters would work. +2 looks okay. In the rear I figure its way easier to run them at +2 as well so I figured why not.

[Mystikal]

17x8 et2 in front et-3 in rear.

Is 215/40/17 doable? Would I need a heavy roll?

Early model rear arches.

195/40 or 205/40. You will definitely need to roll, but unlike the late model guys running the same setup you won't be rubbing afterwards.

[Mystikal]

I'm about to pull the trigger on some ESM 15x8 / 4x100 (offset 15, hub bore 57.1) and thinking about running 205/50/15. Some questions:

1. Is this a direct fit?
2. Can I go bigger with tire size without rolling fenders - say 225/50/15?
3. With the 15" wheels, do I need to buy new lug bolts and if so, what size? Any good places to buy lug bolts?

Direct fit. 205/50 is the largest you're going to fit. You only need new bolts if the wheels call for tuner bolts; otherwise the stock bolts are fine.

[Mystikal]

Cheers man, your help is always appreciated!

Don't have a question about fitment yet but I would like to give props to Mystikal for answering everyone's questions. You are truly the Wheel Fitment expert.

Thanks!

[Mystikal]

I appreciate the input. But the more I think about it, I think id like to go bigger if possible. Now that ive done some more research, and according to tirerack.com, seems like 205's are too narrow for 8 inch wide rims. Tire rack lists 215 as the minimum for 8inch wheels. 215/45 or maybe even 225/45 seems like the way to go.

if the height of the tire is concern, the 205/50's would be tallest of the 3 options. however, if width is the issue i understand why you recommend 205... but id really like to get at least 215's so the tires aren't stretching.

205/50 diameter (wheel+tire) = 611.4mm
215/45 diameter (wheel+tire) = 599.4mm
225/45 diameter (wheel+tire) = 608mm

So the question: is width the fit concern? can i fit 215/45s?

215/45 will work without fender rolling. 225/45 requires a rear roll but is otherwise doable.

[Mystikal]

Well the wheels I ordered wont be in on the time frame I need them in so I am off to hunt for something else as well. I ran across these today and wanted to see what it would take to run these wheels on a 1991 318is? on factory 4 lug?

Here are the specs from the guy selling them:
Wheels- ARE 398
Specs- 17x9.5
5x120.7
offset- seller is saying +56 E30SPDFRK says they may be +38

I know I would need adapters but my question is how much poke will that give me? Is it possible to run these? what adapters would I need to clear my shock and not have some crazy mexi poke go on.

Thanks,

Possible, but that's on the limit for E30 fitment and as such requires just the right combination of parts:

Coilovers with relatively high spring rates (500/700, etc)
Front and rear fender rolling
215/40 tires
Front camber plates dialed to about -3.5

The final front offset would need to be +6 at the highest. For the rear you can get away with +26 but you would want the offset to at least be the same as the fronts if not lower in order to look right. It will poke quite a bit, but can be functional if you get everything just right.

[Robert]

Which one is taller, 255/40r17 or 255/50r16?

[E30leef]

hey mate, so i asked about what wheels would fit my e30.

you said 16x8 et25 will be fine.

i went and got these wheels that are 16x8 et0 as they looked amazing and at a really good price!

however, the front has way too much poke.. (approx 35mm outside the fender).. the rear is pretty much fine (little bit of poke which looks nice )

what are my options? if i have any?