|
|
|
11-09-2013, 10:25 PM | #1 |
Captain
65
Rep 762
Posts
Drives: E82 135i N54 6MT & F80 M3 DCT
Join Date: Jan 2011
Location: USA
|
Tire fitment Front 235/40/18 MPSS on ET45 8.5" Wheels
Anyone run 235/40/18 with MPSS on ET45 & 8.5" 18" Wheels up front?
I am lowered too on KW V1's. My front 225/40/18 MPSS are nearly done, and with the rain season coming its time to replace them. I want to get as much front grip as possible so I am considering 235/40/18's. Anyone run 235/40/18 MPSS on ET45 8.5in 18" wheels? I have the VMR V718's if anyone's curious. |
11-10-2013, 07:24 AM | #2 |
Major
66
Rep 1,266
Posts
Drives: AW 135i
Join Date: Aug 2012
Location: Waterford, Mi
|
You may run into problems with a 40 series up front when you're lowered. You'd probably be fine with a 35 series tho.
For comparison on a stock height car I had to do a ton of work to get 245/40s to fit. Trimming, camber, fender rolling/pulling, etc.
__________________
Build thread: http://www.1addicts.com/forums/showthread.php?t=748935
|
Appreciate
0
|
11-10-2013, 09:54 AM | #3 |
Colonel
1427
Rep 2,562
Posts
Drives: Rapidly from A to B
Join Date: Jun 2005
Location: Chicago 'burbs or TN Smokies
|
I am currently running 235/40-18 MPSS on 8.5-18-45 Forgestar CF5. No rubbing - zero. Very cozy fit though on the strut side to be sure. I have BMWP springs which lower the car by about 0.5 inches. I also have Dinan camber plates which raise the car by about 0.25. So net lower is about 0.25. Negative 1.5 camber is dialed in. I'd feel confident that with your setup you can make it work.
I have 245/35 on the back with the same wheels. I tried them on the front for fun and they will need a 3 mm spacer to work with no rub on the strut side. Hope this helps. Last edited by Pyrat 2; 11-10-2013 at 10:02 AM.. |
Appreciate
0
|
11-10-2013, 12:22 PM | #4 | |
Lieutenant General
2392
Rep 12,636
Posts
Drives: Z4 M, X5, GX460
Join Date: Apr 2008
Location: CT
iTrader: (100)
Garage List E86 Z4 M [10.00]
F15 X5 xDrive35i [9.17] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.43] E82 135is (Retired) [9.53] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.25] E86 Z4 3.0si (Retired) [8.93] |
Quote:
On a separate note why is it that so many folks here don't understand basic tire sizing? They only bother to look at width not realizing how profile changes height. OP I would much rather run 245/35 square with a 2-3mm spacer up front than rim a 235/40 which is 0.6" taller than stock. That alone would be enough to cause running due to being too tall. 245 gives you benefit of more traction up front while maintaining stock height. If I were to upsize, I wouldn't go more than 225/40 which is 1/3" more. It'll provide a more comfortable ride, fill out wheel gap and work well with factory wheel widths. But seeing how you got 8.5" et45, go 245/35 and pick up a spacer from Apex (free s&h). |
|
Appreciate
0
|
11-10-2013, 01:02 PM | #5 | |
Colonel
1427
Rep 2,562
Posts
Drives: Rapidly from A to B
Join Date: Jun 2005
Location: Chicago 'burbs or TN Smokies
|
Quote:
|
|
Appreciate
0
|
11-10-2013, 01:06 PM | #6 | |
Lieutenant General
2392
Rep 12,636
Posts
Drives: Z4 M, X5, GX460
Join Date: Apr 2008
Location: CT
iTrader: (100)
Garage List E86 Z4 M [10.00]
F15 X5 xDrive35i [9.17] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.43] E82 135is (Retired) [9.53] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.25] E86 Z4 3.0si (Retired) [8.93] |
Quote:
I'm not surprised you don't run since your drop is so minimal but I'm pretty sure OP will be running his KW's lower. Oh yea Chicago roads can't be much worse than NJ/NYC |
|
Appreciate
0
|
11-10-2013, 01:13 PM | #7 | |
Major
66
Rep 1,266
Posts
Drives: AW 135i
Join Date: Aug 2012
Location: Waterford, Mi
|
Quote:
__________________
Build thread: http://www.1addicts.com/forums/showthread.php?t=748935
|
|
Appreciate
0
|
11-10-2013, 01:34 PM | #8 | |
Colonel
1427
Rep 2,562
Posts
Drives: Rapidly from A to B
Join Date: Jun 2005
Location: Chicago 'burbs or TN Smokies
|
Quote:
I don't recall but there may have been other things I considered at the time. Clearly thought it through. The car, wheel, suspension, and tires were all new to me. So I went with something safe. Once these tires are spent I will go with either 245/35 & 255/35 or 235/40 and 245/35. |
|
Appreciate
0
|
11-10-2013, 01:44 PM | #9 | |
Lieutenant General
2392
Rep 12,636
Posts
Drives: Z4 M, X5, GX460
Join Date: Apr 2008
Location: CT
iTrader: (100)
Garage List E86 Z4 M [10.00]
F15 X5 xDrive35i [9.17] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.43] E82 135is (Retired) [9.53] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.25] E86 Z4 3.0si (Retired) [8.93] |
Quote:
FWIW a 245/35 should fit with 3mm spacer and fixed camber plates |
|
Appreciate
0
|
11-10-2013, 02:09 PM | #10 |
Major
66
Rep 1,266
Posts
Drives: AW 135i
Join Date: Aug 2012
Location: Waterford, Mi
|
Dont even need a spacer with certain tire brands.
__________________
Build thread: http://www.1addicts.com/forums/showthread.php?t=748935
|
Appreciate
0
|
11-10-2013, 02:14 PM | #11 |
Lieutenant General
2392
Rep 12,636
Posts
Drives: Z4 M, X5, GX460
Join Date: Apr 2008
Location: CT
iTrader: (100)
Garage List E86 Z4 M [10.00]
F15 X5 xDrive35i [9.17] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.43] E82 135is (Retired) [9.53] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.25] E86 Z4 3.0si (Retired) [8.93] |
True but if someone is trying to stuff 245 up front chances are its a performance tire with wide shoulders
|
Appreciate
0
|
11-10-2013, 02:47 PM | #12 |
Major
66
Rep 1,266
Posts
Drives: AW 135i
Join Date: Aug 2012
Location: Waterford, Mi
|
Just saying direzza's and nitto nt05s dont.
__________________
Build thread: http://www.1addicts.com/forums/showthread.php?t=748935
|
Appreciate
0
|
11-10-2013, 03:06 PM | #13 |
Colonel
1427
Rep 2,562
Posts
Drives: Rapidly from A to B
Join Date: Jun 2005
Location: Chicago 'burbs or TN Smokies
|
I tested the MPSS from the rear 245/35s on the front for grins. They will require a spacer. 3mm will do the trick for sure. Like I said, once these tires are spent I'll seriously consider 245/35 up front with the spacer. Really want to put RE11s on but they don't come in 245/35. BTW I have Dinan fixed plates and my current camber is dialed in at -1.5.
Last edited by Pyrat 2; 11-10-2013 at 03:23 PM.. |
Appreciate
0
|
11-10-2013, 03:33 PM | #14 |
Lieutenant General
2392
Rep 12,636
Posts
Drives: Z4 M, X5, GX460
Join Date: Apr 2008
Location: CT
iTrader: (100)
Garage List E86 Z4 M [10.00]
F15 X5 xDrive35i [9.17] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.43] E82 135is (Retired) [9.53] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.25] E86 Z4 3.0si (Retired) [8.93] |
I wasn't be even aware SS came out in a 245/35-18
|
Appreciate
0
|
11-10-2013, 03:36 PM | #15 | |
Lieutenant General
2392
Rep 12,636
Posts
Drives: Z4 M, X5, GX460
Join Date: Apr 2008
Location: CT
iTrader: (100)
Garage List E86 Z4 M [10.00]
F15 X5 xDrive35i [9.17] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.43] E82 135is (Retired) [9.53] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.25] E86 Z4 3.0si (Retired) [8.93] |
Quote:
|
|
Appreciate
0
|
11-11-2013, 04:35 AM | #17 | |||
Captain
65
Rep 762
Posts
Drives: E82 135i N54 6MT & F80 M3 DCT
Join Date: Jan 2011
Location: USA
|
Quote:
Quote:
I am very much consdering 235/40's now. However, I do see that you have -1.5 camber in the front which helps with fender clearance. I don't have camber plates, and I had my alignment shop knock out the pins to get -0.9 camber up front I believe. My car also is dropped much more than your suspension. It may be hard to tell in the photos I have posted. Quote:
I would like to run a larger width up front. However I am a bit afraid of changing the cars handling characteristics too much if I go 245/35 square. I do want a bit more front end grip which is why I am considering up-sizing the front tires from what I have now (225/40->235/40). As of now, when I push the car into the canyons as hard and aggressively as I possibly can. With the F:225 & R:255 MPSS, no matter how aggressive I turn or carve in the canyons, the rears will NEVER break loose or slip (into an oversteer) and I will always get into an understeer situation first. I do realize, that does sound a bit weird. But having this car for 2+ years now, and being used to its handling characteristics at the limit, I do not want to modify it very much as I am afraid of crashing in a stone wall or worse off a cliff. However, I would like to reduce the understeer a little bit, with hopes by going wider from 225->235. Added note, as I said above. I do not have camber plates, therefore my Front camber is -0.9 degrees (my alignment shop knocked the pins out). So going 245's will also not be possible without fender rubbing I believe, especially so with a 3mm spacer, pushing the wheels&tires out further towards my fender. Edit:: My KW V1's has the car lowered pretty significantly (as pictured in the first post). I have to take that into account as well. I just checked tirerack as well, and they don't offer a 235/35/18 in MPSS. -doh!- |
|||
Appreciate
0
|
11-11-2013, 07:27 AM | #18 |
Major
66
Rep 1,266
Posts
Drives: AW 135i
Join Date: Aug 2012
Location: Waterford, Mi
|
Its not. The difference is 4mm which is about 0.15".
__________________
Build thread: http://www.1addicts.com/forums/showthread.php?t=748935
|
Appreciate
0
|
11-26-2013, 09:18 PM | #19 |
Lieutenant Colonel
84
Rep 1,623
Posts
Drives: Alpine White 128i Cabrio
Join Date: Jun 2013
Location: Toronto, Ontario, Canada
|
If I were to get a set of rims that are squared at 17x8.5 +40 would I need a 5 mm spacer for the fronts? I too would like to try a square 235 setup rather than the stock 128 sport sizes of 215/40/18 and 245/35/18 (I think).
|
Appreciate
0
|
11-26-2013, 10:50 PM | #20 |
Colonel
1427
Rep 2,562
Posts
Drives: Rapidly from A to B
Join Date: Jun 2005
Location: Chicago 'burbs or TN Smokies
|
No spacer required. A 5mm spacer on a 40 offset gives you a 35 offset which is actually getting pretty aggressive and could cause you rubbing in the fender. You are better off with no spacer when running a 40 offset wheel up front and will definitely not have any rubbing on the strut side.
|
Appreciate
1
|
11-27-2013, 07:37 AM | #21 | |
Lieutenant Colonel
84
Rep 1,623
Posts
Drives: Alpine White 128i Cabrio
Join Date: Jun 2013
Location: Toronto, Ontario, Canada
|
Quote:
|
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|