Can I run this setup 17x7.5 (37mm Offset) with 215/40-17 Falken RT-615 rubbers??

BTW: It is an '03 MCS (R53)

I do have H-Sport Springs, Rear Competition Sway Bar and Front Sway Bar

Wheels I'm considering:TR Motorsports F1- Weight 12lbs.


LINKS:http://www.tirerack.com/upgrade_gara...k+w%2FMach+Lip
http://www.tirerack.com/wheels/Wheel...k+w%2FMach+Lip

 

most-likely will rub... pretty bad.

 

i've got 37 offset 17x7's with 205/45 tires... I don't know if i could have an extra .5 inches of rim without rubbing on my struts. I'll be under the car doing a brake conversion this weekend and can measuer it if you would like.

 

Yes you can run it, and no you won't rub.. If you do just trim the fender liner or wheel well liner (whichever rubs).. You shouldn't have any issues with the strut.

EDIT: minimusprime. I've got 18x7.5 with a 42 offset and don't rub on anything. You should have MORE clearance than me with a 37 offset.

 

i dont think it will be a problem, i have 17x7.5 et37 with 215/40/17 tires and have no problems on my r56

 

oh yah.. i ran 17x7.5's with 225/45/17's on my WRX and it didn't rub.
you should have no problems.

better yet, i run 275's on 10" width wheels on my G. still doesn't rub.
you are fine. lol

 

You have a one inch drop from H-sport springs?

The problem with +37mm offset is that the wheel will sit about 10mm less into the wheel well compared to a stock wheel. This means 10mm more will stick out beyond the fender area (compared to stock) plus the extra 1/2" width so about 6mm more (1/4"). 12mm is about 1/2" more sticking out and the risk is basically scrapping the tire at the outer edges against the plastic wheel arch liner on the inside for the rear wheels at about 10 o'clock position on the right rear and 2 o'clock position on the left rear. If you trim the inner edges then it's fine and sometimes it will rub and wear down by itself.

In you case your 215/40-17 is lower than stock size which helps with clearance and if you make your rear negative camber about -1.5 at least then you will some negative camber to create a little more clearance.

Odds are it will fit. So what is so bad about that? Well if you ever were to use taller tires, even stock sized tires you'd be really close to rubbing in the rears so don't choose any tire that will be tall like 24.9 or 25", it simply won't fit. And you have to be careful about using any tires wider than about 215mm due to less clearance. Every tire is made differently and the true size and tread patterns can be a problem.

 

I ran 215/40/17 on my S-Lites with H-Sports. Believe me when I say he will be NO WHERE near rubbing. That drop is waaaay too modest. If he was on maybe m7's or coils then I'd be worried. I'm running 215/35/18 (a bit bigger than the 215/40/17) on a 7.5" wide wheel and a 42 offset and I rub only on BIG dips in the road with 3 people in the car, otherwise, no problems...

 

This I don't understand. The tire tread is centered over the wheel centerline. If the wheel width is made wider the tread is still centered over the wheel centerline. For two wheels of different widths, but with the same offset and tread width the tread is located at the same axial position - so the rubbing should be the same regardless of wheel width as long as the offsets are the same. What will change is that your setup may now rub against struts or something on the inside with the wider wheel setup but except for minor deformations in the tread profile due to the wider wheel, there should be no more increased tendency of tread-to-fender interference with the wider wheel. Seems to me anyway.

 

I'll see your 275's on 10" and raise you to 295's on 10.5"!

The R56 guy was probably just trying to be helpful, and likely didn't realize the different chassis specs.

 

It makes complete sense because the stock wheels are 48 or 50 et. 37et pushes the wheel 11-13 mm(about .5") closer to fender. if they are the same width as stock 7", the whole wheel would be shifted .5" out. With the wheel being .5" wider (.25" on each side of center), the inside of his wheels would actually be .25" further away from the struts on this inside and .50" closer to fender.

 

dan- you know i was just kidding around, right?

yah, 295's are too wide for my G unless i ran twinturbo.

 

ahhh, that's where most people get confused and ask why my wheels
look like 17's and far better looking than other 16's with the same tire size.

if you take a 16x7 wheel and wrap it with 205/50/16, you get about 205mm
width overall.

if you take a 16x7.5 wheel and wrap it with the same 205/50/16, you
get about 230mm width overall. the shoulders do not fold over as much
and becomes MUCH wider.

take for instance my 245/35/19 on 19x8.5 wheel vs 19x9 wheel.
there is a good 25mm+ difference in width.

 

Of course, but wasn't sure if others would know that. I thought I recognized your name from when I had my WRX and was on Nasioc/ClubWRX and out at a few Borders meets...

 

yep, that's me. i only went to a couple of those Border's meets,
but i may have met you. back then, i was working often in Detroit so
almost never in chicago during the mid-week.

 

Yes please I would like to verify

 

Sorry, failed to mention mine is 03 (R53)

 

Just so we are clear on this. the difference between a 17x7 and 17x7.5 given that the offsets are the same... is how much the rim sits in board. The wheel width has nothing to do with how far the wheel sticks out as that is what the offset deals with. correct?

so for me to verfiy this for howsoonisnow1985 I can simply measure and make sure that a half inch of additional rim/tire on the inboard will fit with no rubbing. If this is the case he is all set correct?

 

No and no.

Wider rim means wider towards the inner wheel well AND wider to the outer wheel well facing outwards if the offset is the same as the narrower rim. Since 1/2" wider then 1/4" more in and 1/4" more out so both ways you get less clearance. Changing the offset changes everything.

If you want the rim to only go more in to the same amount as stock then you need less offset but now the 1/2" wider rim will be facing more outward than the stock rim by the full 1/2".

Your wheel well has only so much clearance so at some point with a wider rim you need less offset than stock. This usually means that the extra tire and rim will be facing out and if the tire is tall then your fender might need a kit or your plastic trim needs to be cut or ground down. The smaller the outer tire diameter the more clearance you can get with a wider wheel/tire.

Confused? Talk to Alex@tirerack.com or look for other owners and try on some wheels of similar width and offsets and see how everything fits together.

 

yes and yes to wat minihune said (i agree).


as i mentioned above by me, it's tricky and only can understand
by experience. you can only guess by the numbers. it's only a
reference to get you started.

 

Now I gotta go check the measuments make sure, but last I checked I thought I did have that space. I hope

 

A 7.5" wide wheel isn't thaaat wide (on a MINI).. and a 37 offest should still not be completely flush with the fender. On just H-sports you are NOT going to rub, inside or outside...

 

I had H-sport springs on an 03 MCS with 17x7 rims +42mm offset and 215/45-17 tires. Rubbed in the rears only both sides on the inner upper plastic wheel arches.

Key is offset (right at the limit) and shoulders of the wide and slightly oversized tires were too much- result- rubbing.

So smaller than stock 215/40-17 will work better but not be as comfortable for daily use on the street. Also 40 series sidewall is stiff so don't hit any potholes or risk damage to your tire, rim, or suspension.

+45mm offset would work better- remember this is only 17x7 rim.

Rear negative camber will also assist with clearance. You could run as much as -1.8 degrees for street use, more than that and you might wear tires a bit quicker.

 

if you saw my car, my 43mm is flush with the fender. i got 3mm from
the inner fender plastic to the sidewall on my 205/50/16's running 7.5"
wheels. you can't get any flusher than this without rubbing. no, i
have not had to dremel anything to make these fit.

try running 37mm on this. it is guaranteed rubbage.

numbers are only reference as i mentioned above. tire width varies with
wheel size and the type of tire you use.

 

My SSR's could still go out a little bit... Also, a 215/45/17 is WAY bigger than a 215/40/17.. I ran that size on the S-Lites and they were a couple mm less in overall diameter than my current setup. On the current setup I only rub the rear wheel wells on big dips (with 3 ppl in the car and over 25lbs of crap in the boot). Sorry but theres just no way he'll get even close to rubbing the fenders normally with a 215/40/17 on H-Sports, regardless of offset.. I still had an inch of gap with the S-Lites, on the 18s i have a tad less than an inch of gap...