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      04-14-2019, 12:36 PM   #1
nixeighty6
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235/35r19 265/30r19 setup

Hey guys, just wanted to share my setup and thoughts on the 235-265 tires. i did a bunch of research but didn't see any thread with real clear documenting, although guys here did say they were running the setup just fine.

setup is:
VMR v703's - stock suspension
Front: 8.5 x19 et 40 with Michelin pilot 4S 235/35 R19
Rear: 9.5x19 et 45 with Michelin pilot 4S 265/30 R19

There was no rub anywhere at Speed, and i flogged her.. for research sake of course. the amount of extra grip coming from the factory staggered M pss 18's is really amazing!
if i would do it again i would personally do a rear et 50, there is plenty of room See pic ,and my setup pokes the tire in the rear about 2-3mil.
hope this helps, Cheers!

i tried to line up the outside of the old and new tires to get a size difference in this pic.[IMG][/IMG]
clearance to the front strut is about the size of the little "feelers". its close but just fine
[IMG][/IMG]
The rear has plenty of room, again i would personally do an et50 and bring it in a bit
[IMG][/IMG]
this is an awful pic but you can kinda see the "poke".. level pressed up to the tire and just about 2-3mil out
[IMG][/IMG]
Front is pretty much perfect
[IMG][/IMG]
Rear
[IMG][/IMG]

The Car with front 235/35r19 et40. rear 265/30r19 et45 w/ Michelin Pilot 4S stock ride height
[IMG][/IMG]

Last edited by nixeighty6; 04-17-2019 at 08:23 PM.. Reason: corrected wheel style
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      04-14-2019, 03:15 PM   #2
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Looks great.

It is so frustrating that there aren't more size options available for the 2.
I wish there were many manufacturers making many styles in 18x8ET40 and 18x9ET50. Those sizes would allow 235/40 front and 265/35 rear, w/o spacers.

Sorry, I know it's off-topic, just venting...
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      04-14-2019, 03:22 PM   #3
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Regretfully, the 2 series has such a specific offset requirement that 99% of other cars can’t use. That’s why there aren’t more options.

I ran 235/35/19 et39 front, 265/30/19 et44 rear for the longest time. Then switched to 235/40/18 et45 with 3mm spacers front, 265/35/18 et45 rear with MPS4S for a little more comfort and better offsets (100% agree that et50 would be best in the rear, but VMR sets with et50 were backordered with no eta at the time).

Both sets were 8.5 front 9.5 rear
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      04-14-2019, 06:59 PM   #4
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Quote:
Originally Posted by Joe240 View Post
Regretfully, the 2 series has such a specific offset requirement that 99% of other cars can't use. That's why there aren't more options.

I ran 235/35/19 et39 front, 265/30/19 et44 rear for the longest time. Then switched to 235/40/18 et45 with 3mm spacers front, 265/35/18 et45 rear with MPS4S for a little more comfort and better offsets (100% agree that et50 would be best in the rear, but VMR sets with et50 were backordered with no eta at the time).

Both sets were 8.5 front 9.5 rear
Quote:
Originally Posted by Joe240 View Post
Regretfully, the 2 series has such a specific offset requirement that 99% of other cars can't use. That's why there aren't more options.

I ran 235/35/19 et39 front, 265/30/19 et44 rear for the longest time. Then switched to 235/40/18 et45 with 3mm spacers front, 265/35/18 et45 rear with MPS4S for a little more comfort and better offsets (100% agree that et50 would be best in the rear, but VMR sets with et50 were backordered with no eta at the time).

Both sets were 8.5 front 9.5 rear
Did you change to 18" for clearance or performance? Or both? What's ur suspension, H&R 1" all around?

Also, does 8.5" and 9.5" stretch the PS4S at all? Or any respective tire doing the 235 265 setup? I like the beefy look and would downsize width if it does.

Lastly, we can agree that a et42 front and et48/50 rear is most ideal, given our constraints!

I sadly sold a new pair of M4CS replicas due to the 35et and 40et, at a profit but they were so good looking with 8.5 and 9.5 widths. All the discussions by you and many others helped a lot! I need that 235/265 setup done right!

Thanks
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      04-14-2019, 07:51 PM   #5
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Quote:
Originally Posted by jdag001 View Post
Did you change to 18" for clearance or performance? Or both? What's ur suspension, H&R 1" all around?

Also, does 8.5" and 9.5" stretch the PS4S at all? Or any respective tire doing the 235 265 setup? I like the beefy look and would downsize width if it does.

Lastly, we can agree that a et42 front and et48/50 rear is most ideal, given our constraints!

I sadly sold a new pair of M4CS replicas due to the 35et and 40et, at a profit but they were so good looking with 8.5 and 9.5 widths. All the discussions by you and many others helped a lot! I need that 235/265 setup done right!

Thanks
Factory suspension. I went 18s for more sidewall. Better driving response and comfort honestly. 235/19 on 8.5 is a little more stretch than 235/18 on 8.5. Less stretch allows for better traction both with turns, but also with launches. 235/265 MPS4S on 8.5/9.5 is more square on 18s than it is on 19s.

Going from the 19s to 18s increased my 0-60 time by about .3s because more sidewall to flex for launches, which equates to better traction. Granted, it was also DWS06 for the 19s and MPS4S for the 18s. With that said, The DWS06 time was on a drag strip with prep (could hear the tires sticking to the ground as I rolled), whereas the MPS4S was on the street (obviously no prep for increased traction. 3.9s on the 19s DWS06 at the drag strip, 3.6s on the 18s MPS4S on the streets.
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      04-14-2019, 08:25 PM   #6
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Yea, as jdag001 said.. "All the discussions by you and many others helped a lot! "

You can see in a calculator that 235=8.5rims and 265=9.5 rims so that is the right setup or standard size. but you can see the from/to sizes also
https://www.tyresizecalculator.com/t...ize-calculator

et42 is going to be tight so my two cents would be et40 up front is just right.
now that said, i would do et 42 and space it if it touched anything.
also kinda think et52 would be my ideal, or et 55 and space if needed.
i swear in my searching on the forum there was a guy that did et58 with 5mil spacers on a 265 setup. but i did a lot of reading and it was hard to find clear info, especially on if people really rubbed anywhere.


sorry Joe240 but the talk of going from all season tires to Mp4s and times and Better driving response is way off topic. please lets stay on fitment
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      04-14-2019, 08:39 PM   #7
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Only mentioned driving dynamics and stuff because they asked why I made the switch. Agreed more in depth is meant for another thread though.

As far as front figment, et42 is probably the closest recommended. You can see in my picture that the feelers touch the strut here. Again this being factory suspension, adding camber could allow people to run et45 potentially. After mounting the wheel with spacer to make et42, I took the 2nd 3mm spacer and tried to slide it between the wheel and strut and it was not happening. Definitely less than 3mm clearance at et42 with 235 wheels. I never had any rubbing though with this and I did full lock both directions, hard corners, and hard braking to compress the suspension.

I saw that same thread of someone running over 50 offset with spacers in the rear as well. Why I wanted the et50 VMRs. Couldn't find any wheels over 50 offset though that I liked.
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      04-29-2019, 09:17 PM   #8
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Quote:
Originally Posted by Joe240 View Post
Only mentioned driving dynamics and stuff because they asked why I made the switch. Agreed more in depth is meant for another thread though.

As far as front figment, et42 is probably the closest recommended. You can see in my picture that the feelers touch the strut here. Again this being factory suspension, adding camber could allow people to run et45 potentially. After mounting the wheel with spacer to make et42, I took the 2nd 3mm spacer and tried to slide it between the wheel and strut and it was not happening. Definitely less than 3mm clearance at et42 with 235 wheels. I never had any rubbing though with this and I did full lock both directions, hard corners, and hard braking to compress the suspension.

I saw that same thread of someone running over 50 offset with spacers in the rear as well. Why I wanted the et50 VMRs. Couldn't find any wheels over 50 offset though that I liked.
Hey Joe.

What's the setup look like on the opposite end?

My friend is running 245s in the fronts with -2.8 camber and on some Vorsteiners we could not get offsets parameters of ... wondering how much farther out I can go to open the door for 245s... maybe et37/38?

I'm leaning towards et40 front and et50 rears.. maybe 51 rears for the hell of it , custom set... opening that front 245 door would be ideal though, for that m2 tire setup.
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      04-29-2019, 09:51 PM   #9
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Without camber adjustments, you won’t fit a 245 without poke in the front. Just not enough clearance between fender and strut stock.

If a 8.5et42 with 235 is essentially square, a 245 would have some bulge on an 8.5” wheel. Since it’s 10mm wider, assume +5mm inside and outside for clearance. That would mean for a safe offset, 8.5et37 would sit the same on the inside. However, you could go 8.5et40 and use a small spacer if you have rubbing issues.
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      04-29-2019, 10:18 PM   #10
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Quote:
Originally Posted by jdag001 View Post
Hey Joe.

What's the setup look like on the opposite end?

My friend is running 245s in the fronts with -2.8 camber and on some Vorsteiners we could not get offsets parameters of ... wondering how much farther out I can go to open the door for 245s... maybe et37/38?
Not Joe, but I run 18" 245/40s at the front for track. 8.5" Apex SM-10, et35. I've gone to as little as -3 camber and they are still ok. About 1" lower ride height, and a pretty beefy sway bar, so there's not that much lean. The inside is clear of the strut / spring, and there's maybe 2mm left on the outside.
Here's one with a pretty heavy dive under braking, just starting to turn in:


A shorter 60mm diameter spring will probably open up the door for 255/35, but at that point might as well flare the fenders and go even wider.
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      04-30-2019, 07:30 AM   #11
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I have a similar setup but with Dinan springs

VMR 710FF's.

19x8.5 effective ET42 (ET45 w/3mm spacers) front on 235/35 PS4S
19x9.5 ET45 rear on 265/30 PS4S

I have about 800 miles on them so far, mostly highway. It was a bouncy highway so I got some decent compression and no rubbing. I have not had a chance to aggressively corner yet.

I too would have preferred an ET50 option for the rears, but the poke isn't terrible.
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      04-30-2019, 07:54 AM   #12
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Quote:
Originally Posted by Joe240 View Post
Without camber adjustments, you won’t fit a 245 without poke in the front. Just not enough clearance between fender and strut stock.

If a 8.5et42 with 235 is essentially square, a 245 would have some bulge on an 8.5” wheel. Since it’s 10mm wider, assume +5mm inside and outside for clearance. That would mean for a safe offset, 8.5et37 would sit the same on the inside. However, you could go 8.5et40 and use a small spacer if you have rubbing issues.
Thanks yeah these guys above make some fair points too. I am probably gonna go et39 in the fronts with 235s to start. 3mm spacer and LCAs and TS there after to open the door for -2 or more camber with 245s. Our Dinan 0.5" drop in the front should make things easier.

The larger tire is cool but without camber, full load will not utilize the tire end to end. My 235 or even 245 tires under full load will be turning into 225..215.. Ive got a -0.7 camber with stock arms and fairly stuck there..
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      04-30-2019, 08:03 AM   #13
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Quote:
Originally Posted by msendit View Post
Not Joe, but I run 18" 245/40s at the front for track. 8.5" Apex SM-10, et35. I've gone to as little as -3 camber and they are still ok. About 1" lower ride height, and a pretty beefy sway bar, so there's not that much lean. The inside is clear of the strut / spring, and there's maybe 2mm left on the outside.
Here's one with a pretty heavy dive under braking, just starting to turn in:


A shorter 60mm diameter spring will probably open up the door for 255/35, but at that point might as well flare the fenders and go even wider.
Good input and setup

I am leaning towards et40/et39 so i can run 235 safely at first.... once LCA and TS are underway will add a 3-5mm spacer..

Any positive affirmation on your end regarding spacers on track? should i do a stud conversion? Titanium lug bolts? or no stress, as we arent doing 1.5g+
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      04-30-2019, 09:12 AM   #14
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Quote:
Originally Posted by jdag001 View Post
I am leaning towards et40/et39 so i can run 235 safely at first.... once LCA and TS are underway will add a 3-5mm spacer..
Yeah, I think you should be good with that. I've ran 235 on an et42 wheel and that seemed to do just fine. Looking at my notes, the first time I ran 245 was on that same wheel with a 5mm spacer, so you should have a few mm to play with.

Quote:
Originally Posted by jdag001 View Post
Any positive affirmation on your end regarding spacers on track? should i do a stud conversion? Titanium lug bolts?
I've ran small spacers without issues, but YMMV of course. If you're just worried about length, the stock bolts will probably do just fine with these small spacers.
Studs just make life much easier when swapping wheels often. Just be aware that they are a consumable (I've had quite a few snap) and have to be replaced somewhat often if you track a lot.

Quote:
Originally Posted by jdag001 View Post
or no stress, as we arent doing 1.5g+
Careful what you wish for, our cars are certainly capable of that with the right tire
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      04-30-2019, 09:57 AM   #15
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Quote:
Originally Posted by msendit View Post
Yeah, I think you should be good with that. I've ran 235 on an et42 wheel and that seemed to do just fine. Looking at my notes, the first time I ran 245 was on that same wheel with a 5mm spacer, so you should have a few mm to play with.



I've ran small spacers without issues, but YMMV of course. If you're just worried about length, the stock bolts will probably do just fine with these small spacers.
Studs just make life much easier when swapping wheels often. Just be aware that they are a consumable (I've had quite a few snap) and have to be replaced somewhat often if you track a lot.



Careful what you wish for, our cars are certainly capable of that with the right tire
Thank for the input... Looks like et 40 is a fair start with 3mm spacers on stock lugbolts.... I will be test fitting my rear OEM wheels with huge spacers tonight to test fit ET40 and ET37 on 18x8 with 245/35 tires.... might follow up as a or
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      04-30-2019, 12:29 PM   #16
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One more comment. My GPS speed now matches my speedometer. GPS always read a few MPH lower at highway speed on stock tires.
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      04-30-2019, 03:37 PM   #17
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Question on 8" wheels

Quote:
Originally Posted by Joe240 View Post
Without camber adjustments, you won’t fit a 245 without poke in the front. Just not enough clearance between fender and strut stock.

If a 8.5et42 with 235 is essentially square, a 245 would have some bulge on an 8.5” wheel. Since it’s 10mm wider, assume +5mm inside and outside for clearance. That would mean for a safe offset, 8.5et37 would sit the same on the inside. However, you could go 8.5et40 and use a small spacer if you have rubbing issues.
Some others in this forum are running 245 width square set ups with no camber adjustments or other modifications. They report no rubbing, but are running 8" wheels with et 43 rather than 8.5". See the thread below as an example. Does the extra half inch (8" to 8.5") make the difference?

Thanks.

https://www.2addicts.com/forums/show....php?t=1597122
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      04-30-2019, 04:02 PM   #18
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Quote:
Originally Posted by MerlinMc View Post
Some others in this forum are running 245 width square set ups with no camber adjustments or other modifications. They report no rubbing, but are running 8" wheels with et 43 rather than 8.5". See the thread below as an example. Does the extra half inch (8" to 8.5") make the difference?

Thanks.

https://www.2addicts.com/forums/show....php?t=1597122
It’s the difference between a square fitment, and a bulged tire. The bulged tire actually pulls the sides in, thus narrowing the tread width a hair. This could be enough to prevent rubbing on stock suspension under hard corners and braking, but I never tried so can’t confirm. However, if they says yes, then I’d take their word for it like you are for mine haha. 245 section width on stock suspension with 8.5” wheels and 42-43 offset will theoretically rub the strut (245 is bulged on 8.5” wheels by approx 3-5mm, and if 8.5et45 wheels touch the strut, 8.5et42 with an extra 3-5mm of tire past the wheel should also rub the strut) and will have slight poke.
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      04-30-2019, 07:45 PM   #19
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Hello everyone, I was hoping you can help since I have no experience in wheels nor offset.
I’m looking into buying wheels for my 228i m sport.
However This person that’s selling them doesn’t have any offset informations on wheels.
Tires In the rear: 265/30/19
Tires in the front: 225/35/19
Would this fit? Any idea?
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      04-30-2019, 10:09 PM   #20
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I can assure you that anything with a lip on it will not fit on this car. Calipers are too big primarily, but also there’s not enough room from wheel to fender to support such a large lip that these wheels have.
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      11-23-2020, 04:56 PM   #21
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Quote:
Originally Posted by stlb5 View Post
I have a similar setup but with Dinan springs

VMR 710FF's.

19x8.5 effective ET42 (ET45 w/3mm spacers) front on 235/35 PS4S
19x9.5 ET45 rear on 265/30 PS4S

I have about 800 miles on them so far, mostly highway. It was a bouncy highway so I got some decent compression and no rubbing. I have not had a chance to aggressively corner yet.

I too would have preferred an ET50 option for the rears, but the poke isn't terrible.
I know this is an old post but did you ever get any rubbing on this setup? Do you think it would work on an et39 or et35 on the dinan springs?
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      11-26-2020, 10:20 PM   #22
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Quote:
Originally Posted by joeduquette View Post
Quote:
Originally Posted by stlb5 View Post
I have a similar setup but with Dinan springs

VMR 710FF's.

19x8.5 effective ET42 (ET45 w/3mm spacers) front on 235/35 PS4S
19x9.5 ET45 rear on 265/30 PS4S

I have about 800 miles on them so far, mostly highway. It was a bouncy highway so I got some decent compression and no rubbing. I have not had a chance to aggressively corner yet.

I too would have preferred an ET50 option for the rears, but the poke isn't terrible.
I know this is an old post but did you ever get any rubbing on this setup? Do you think it would work on an et39 or et35 on the dinan springs?
I have not had any rubbing at all with my setup.
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