[BM235iW]

Originally Posted by ocN55

Did you have to roll your rears for that?

There is no fender lip at rear fenders only the front fenders have lips.

[Bombermon3]

https://photos.google.com/share/AF1Q...NuRS1STVZyYTRR

[Bombermon3]

Posted 265s under some brake rotors.. I decided not to keep them because I plan on lowering the car.

2x VMR Wheels V701 18x9.5 ET45 5x120 72.6 in rear

[cxp213]

18x8.5 +45 on 235/40
18x9.5 +45 on 265/35

Below pics are with 5mm spacer in the front, resulting in +40 offset. I took the bottom 2 pics on a speed bump to show suspension compression and clearance.

[zipphreak]

265's are fly in the back

18x8.5 ET45 - 3mm spacers ET42 235/40/18
18x9.5 ET52 - 265/35/18

I've run Bridgestone PP S04, Hankook RS3v2, and RS4's.. The Hankook's are really great tires on the track, they just seem to stick everywhere. But i'm sure the AWD/xdrive helps

I also run GCv2 camber plates in the front with about -2.5 deg front, and -2.25 rear. This has been working out well this past track season.

[cxp213]

Wait until you try BFG Rival S 1.5 or Bridgestone RE-71R. Those are much stickier for regular street tires.

[MarkCcars]

Originally Posted by cxp213

18x8.5 +45 on 235/40
18x9.5 +45 on 265/35

Below pics are with 5mm spacer in the front, resulting in +40 offset. I took the bottom 2 pics on a speed bump to show suspension compression and clearance.

Car looks fantastic!
Is the front wheel still hubcentric with the 5mm spacer?

[cxp213]

Originally Posted by MarkCcars

Car looks fantastic!
Is the front wheel still hubcentric with the 5mm spacer?

Yes, I believe it was, but barely.

[Anthony235]

Originally Posted by MarkCcars

Car looks fantastic!
Is the front wheel still hubcentric with the 5mm spacer?

Originally Posted by cxp213

Yes, I believe it was, but barely.

Just use a hubcentric spacer and you'll be fine. Should be required when running any spacer.

Lugs keep the wheel on, but the hub is what supports the car. If you loose the hub "lip" between the wheel/hub your lugs will be the only thing supporting the car....sheared lugs and a flying wheel would probably be the result.

[cxp213]

Originally Posted by Anthony235

Just use a hubcentric spacer and you'll be fine. Should be required when running any spacer.

Lugs keep the wheel on, but the hub is what supports the car. If you loose the hub "lip" between the wheel/hub your lugs will be the only thing supporting the car....sheared lugs and a flying wheel would probably be the result.

Agreed, although it's not a guarantee that you'll experience failure. I've not had any failures with various size spacers I've used on different vehicles over time, including launching at 6K on nitrous. At the same time, my anecdotal "evidence" isn't guarantee that it won't fail, either.

Anyway, while one should always opt for hub centric spacers spacers, thin spacers under 10mm don't have the built-in lip to act as the hub as it relies on the original hub to make contact with the wheel center bore.

[Anthony235]

Originally Posted by cxp213

Agreed, although it's not a guarantee that you'll experience failure. I've not had any failures with various size spacers I've used on different vehicles over time, including launching at 6K on nitrous. At the same time, my anecdotal "evidence" isn't guarantee that it won't fail, either.

Anyway, while one should always opt for hub centric spacers spacers, thin spacers under 10mm don't have the built-in lip to act as the hub as it relies on the original hub to make contact with the wheel center bore.

Agreed. Anything over 5mm and I would want it to be hubcentric though.

Rotational forces (like when launching) aren't that much of an issue I would think. It's the vertical up and down forces (hitting a bump or rumble strip on a track) that would be my concern.

[kohlzor]

Originally Posted by cxp213

18x8.5 +45 on 235/40
18x9.5 +45 on 265/35

Below pics are with 5mm spacer in the front, resulting in +40 offset. I took the bottom 2 pics on a speed bump to show suspension compression and clearance.

Nice setup! Which wheels and tires are you running? I am looking for a similar setup, can't go 19" with all the pot holes around with stock suspension I shouldn't have any issues running 18" 235/265?

[cxp213]

Originally Posted by kohlzor

Nice setup! Which wheels and tires are you running? I am looking for a similar setup, can't go 19" with all the pot holes around with stock suspension I shouldn't have any issues running 18" 235/265?

VMR VB3 V703

[230iZTR]

Originally Posted by ocN55

Those are 1er offsets, I called them and they said they don't recommend this setup anymore as the rear is rubbing on the fuel line.

Is there a new recommended setup then?

[ocN55]

Originally Posted by 230iZTR

Is there a new recommended setup then?

You need a spacer in the rear to get it around ET50-47
Very tight tolerances on this car.

I ran the et62 with a 12mm spacer and it was perfecto

[230iZTR]

So 18x8.5 ET 45-40 w/ 235/40-18 F; 18x9.5 ET 50-47 w/ 265/35-18 R? Both MPSS or MPS4 (as opposed to a tire like Nitto that runs narrower for its nominal size?)

[Luftwaffe1O1]

So I have seen people with 18x9.5et45 stuff 265s, I am curious if anyone has tried this on a car that's lowered with 19x9.5et45 (a lot of people running VMR wheels in this offset).

I have a set of VMR V804s currently running 19x8.5et35 with 225/35/19 front and 19x9.5et45 255/30/19 rear.

I am debating trying to stuff a 265 rear, and 235 front. Now, I realize there is no fender rolling possible in the rear, but usually as part of roll, some minor pulling occurs. I have read of guys with F30s still performing a roll on the rears (even though there is no lip) and it does a very slight pull.

Just wondering if anyone has done anything like this or manage to stuff these sizes with VMR wheels. In the next couple of months I will be replacing all my tires with new P4S tires, and probably around that time getting dinan springs. I feel like a tiny bit more meat might be beneficial but not if its too much trouble to get to work.

[cxp213]

^ Your fronts will rub the fenders with a ET35 and 235mm tires but your rears are probably fine as long as you have the appropriate camber specs.

[Luftwaffe1O1]

Originally Posted by cxp213

^ Your fronts will rub the fenders with a ET35 and 235mm tires but your rears are probably fine as long as you have the appropriate camber specs.

Would rolling the front fenders help a bit with this?

[cxp213]

Originally Posted by Luftwaffe1O1

Would rolling the front fenders help a bit with this?

Depends on how wide or narrow your 235 tire is. I have super wide 235s on my 8.5" ET45 and had no rubbing but there was about 2mm clearance on the inside. When I added a 5mm spacer (effectively ET40), it rubbed the fender but only under compression while cornering. Currently, I'm running a 3mm spacer, but once I roll the front fenders, I plan on trying a 7-10mm spacer to bring out the wheel more.

[Luftwaffe1O1]

Originally Posted by cxp213

Depends on how wide or narrow your 235 tire is. I have super wide 235s on my 8.5" ET45 and had no rubbing but there was about 2mm clearance on the inside. When I added a 5mm spacer (effectively ET40), it rubbed the fender but only under compression while cornering. Currently, I'm running a 3mm spacer, but once I roll the front fenders, I plan on trying a 7-10mm spacer to bring out the wheel more.

Thanks, yeah just by inspecting it, the fitment looks to be quite tight. Currently I have PSS mounted on there, once these are done, I plan on replacing them with PS4S. But for the front looks like some light fender rolling will be a must in order to stuff a 235/35/19 in there.

[msendit]

This thread was super useful when I was looking at track wheel and tire specs.

I ended up doing Forgestar F14s with RE71r tires (they run wide).
18x8.5(+40?) 235/40/R18
18x9(+50?) 265/35/R18
(not sure what the exact offsets are, been trying to ask Forgestar)

I'm also running a bit lower than stock on coilovers, with -2.2 camber on all four corners. No fender rolling.
So far, just one track day on them, no signs of rubbing anywhere. It was on Thunderhill, which tends to be pretty hard on the suspension with all the elevation changes... I might get braver for the next set and try 245s front with more camber / fender work...




(also, shoutout to Kevin at **********s.com for answering my incessant questions about these)