08-15-2018, 11:55 PM | #3 |
Major
809
Rep 1,369
Posts |
I did it, but I have 18x9.5" wheels. Wouldn't personally do it on the 8" OEM wheels. I will say the 255 PSS is markedly wider than the 245; closer to 20mm wider, rather than the 10mm you'd expect. Gonna try 265's next year.
__________________
2017 M240i/ ZF8 Pure Drivetrain Solutions Stage 1 & torque converter/xHP/ DAW Ultra Flow/ DS2/ Nostrum injectors/ E40 Doug Newton tuned/ ER DP/ Remus axle back/ BMS intake/ FTP CP/ M Perf LSD
|
Appreciate
1
WolfGTI716.00 |
08-16-2018, 07:45 AM | #5 |
Private
32
Rep 69
Posts
Drives: 2014 M235i AW
Join Date: Jul 2018
Location: Mass
|
If you do get wider wheels don't stop at 255, 265's fit with no spacers required.
__________________
2014 BMW M235i AW
1998 Porsche 911 2007 Mercedes E350 Wagon 2001 Toyota MR2 1977 Lancia Montecarlo 2002 Acura RSX Type S |
Appreciate
0
|
08-16-2018, 08:08 PM | #6 |
Major
987
Rep 1,241
Posts |
I went from the stock PSS to 255 rear/235 front PS4S on 19" rims. Ride quality, grip in both dry and damp road conditions (did not try full wet roads), and road noise were all improved for sure with the new setup. I know a lot of that could be from the improved PS4S tire compound, but I actually believe putting more rubber on the ground as well provides that much more suspension between you and the ground and therefore a more supple feeling ride.
Btw, I wouldn't go more than 255, personally. 265 is probably past the point of diminishing returns for a car of this weight and HP if we're mainly talking street use. My 255s poked a bit more than I was hoping for even though function was perfect with no rubbing or issues and the wheel offset was almost ideal for this car. I imagine fitting 265 in the rear would be difficult unless you like the ultra-poke look.
__________________
CP911
Last edited by CP911; 08-16-2018 at 08:18 PM.. |
Appreciate
0
|
08-17-2018, 11:44 AM | #7 |
Private
32
Rep 69
Posts
Drives: 2014 M235i AW
Join Date: Jul 2018
Location: Mass
|
My 265's in the rear are no pokier than my 235's in the front.
Onto the subject of ride. Increasing the wheel diameter shortens the sidewall which makes it less compliant. It also decreases the volume of air in the tire which makes it less compliant (you could go to a lower pressure but that will put your rim at more risk). For both reasons if you want a better ride quality you want to stay on your 18's. No doubt 19's have the look. On smooth roads their tires will squirm less and grip better. On not so smooth roads their lower compliance will not grip as well. There is no better or worse, just compromises and likes.
__________________
2014 BMW M235i AW
1998 Porsche 911 2007 Mercedes E350 Wagon 2001 Toyota MR2 1977 Lancia Montecarlo 2002 Acura RSX Type S |
Appreciate
0
|
08-17-2018, 03:29 PM | #8 | |
Major
809
Rep 1,369
Posts |
Quote:
__________________
2017 M240i/ ZF8 Pure Drivetrain Solutions Stage 1 & torque converter/xHP/ DAW Ultra Flow/ DS2/ Nostrum injectors/ E40 Doug Newton tuned/ ER DP/ Remus axle back/ BMS intake/ FTP CP/ M Perf LSD
|
|
Appreciate
0
|
08-17-2018, 06:29 PM | #9 | ||
Major
987
Rep 1,241
Posts |
Quote:
__________________
CP911
|
||
Appreciate
0
|
08-17-2018, 07:28 PM | #10 |
Private
32
Rep 69
Posts
Drives: 2014 M235i AW
Join Date: Jul 2018
Location: Mass
|
If anyone cares, I'm on 58 offset, no spacers and 265 PS4's. No mods to fenders or struts and no issues. I too was concerned about rubbing but my wheel source sent me a convincing picture of a similar setup.
The square 225 All Season runflats are now the cold weather wheelset.
__________________
2014 BMW M235i AW
1998 Porsche 911 2007 Mercedes E350 Wagon 2001 Toyota MR2 1977 Lancia Montecarlo 2002 Acura RSX Type S |
Appreciate
0
|
08-18-2018, 08:48 AM | #11 | |
Major
987
Rep 1,241
Posts |
Quote:
__________________
CP911
|
|
Appreciate
0
|
08-18-2018, 02:20 PM | #12 |
Brigadier General
1006
Rep 3,341
Posts |
I really like a 255 on a 9" wide rim in the back on this car. Looks and feel improved. et 48-50 would be nice. My BBS CHR's are 9", et44 in the back and I had 255's on them. The wheel is totally flush with the fender but the tire does poke a little as CP911 has mentioned. I put 245's on and no more poke, all is flush and looks better to me. I'd run 255's if these BBS's were at least et48. No experience with 265's on this car but totally doable with proper offsets in regards to wheel width.
|
Appreciate
0
|
08-18-2018, 05:53 PM | #13 |
Newer 2er
296
Rep 474
Posts
Drives: 2017 M240i (Sold)
Join Date: Jun 2016
Location: Johns Creek, GA
|
I'm on Dinan springs/bump stops, 18x9 et 50 rear running MPS4S in 265 with no poke and no rubbing.
__________________
2017 BMW M240i (Sold)
2021 F-150 Raptor 2017 Porsche 718 Cayman S 2017 Audi Q5 |
Appreciate
0
|
08-18-2018, 08:32 PM | #14 |
Private
32
Rep 69
Posts
Drives: 2014 M235i AW
Join Date: Jul 2018
Location: Mass
|
This is from the email with my wheel source:
"I would be glad to put together a package for you. The wheel selection sizes you have are semi correct but I would go with a different size. I would do a 18x8.5 et 45 and 18x9.5 et 58. That size will allow you to run a 265 rear with no rubbing." The wheels are Apex EC-7's. Roads are bad where I live so 18's are the only choice. Once mounted I realized that I was going to have to determine what tire pressures to run. 33 up front was good. More bounced, less was squirmy. In the back I tried 38, 33 and then settled on 35. 38 was too much for potholes. 33 wouldn't let the back end move out on turns.
__________________
2014 BMW M235i AW
1998 Porsche 911 2007 Mercedes E350 Wagon 2001 Toyota MR2 1977 Lancia Montecarlo 2002 Acura RSX Type S |
Appreciate
0
|
08-19-2018, 09:40 AM | #15 |
Lieutenant Colonel
871
Rep 1,758
Posts
Drives: 30Jahre M5 plus a few more M's
Join Date: May 2012
Location: Palo Alto CA
iTrader: (0)
Garage List 2022 BMW M5 CS [0.00]
2020 BMW M340i Xdrive [0.00] 2019 BMW M2 Competi ... [0.00] 2003 BMW DINAN S3 M5 [0.00] 2017 BMW 30 Jahre M3 [0.00] 2016 BMW M4 GTS [0.00] 2015 BMW 30 Jahre M5 [0.00] 1995 BMW M3 [0.00] |
245/265 fits perfect. 5mm spacer in the rear. I have a thread on this.
__________________
Current non-BMW's
20 Jeep Grand Cherokee 03 Cooper S (Maxi Tuned 50bhp) 60 Impala (43k orig mi) 15 Turbo S (Kobb tune and Kline exhaust) |
Appreciate
0
|
Post Reply |
Bookmarks |
|
|