BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Wheels + Tires Sponsored by The Tire Rack
  TireRack

KEEP M3POST ALIVE BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER LINK!
Post Reply
 
Thread Tools Search this Thread
      03-25-2020, 01:39 PM   #1
Scharbag
Major
Scharbag's Avatar
Canada
1236
Rep
1,303
Posts

Drives: 2011 E92 M3
Join Date: Oct 2017
Location: Victoria

iTrader: (0)

Garage List
2011 BMW E92 M3  [0.00]
30 Series vs 35 Series Tires - Driving Impressions

I did a search but could not find anything that compared and contrasted 30 and 35 series tires.

I would like to hear if people have tried 255/30/19F and 275/30/19R tires on their M3s and if the ride is overly harsh due to the reduced sidewall. I am thinking of trying this for a couple reasons. First reason is this gives me a 4% change in final drive. Secondly, while running 15/12 F/R spacers, I get just a little rub on the fronts when navigating parking lots and the rears rub very lightly if I hit a big bump when the car is heavily loaded.

I am currently running 255/35/19F and 275/35/19R PS4S tires. I really like the fitment of these widths. For gearing (I moved from the prairies to Vancouver Island so I no longer drive on the highway much), I might consider going to 245/30/19F and 265/30/19R when I buy tires later this year to pickup another 1% on final drive. I do kick myself for selling my 4.10 diff...

Anyway, I appreciate any feedback I can get regarding the 30 series tires.

Cheers,
__________________

2011 E92 M3 - 6MT, ZCP, Dinan Stuff
A wise friend told me "I stopped trying to make a slow car go fast. Instead, I bought a fast car." Sound advice.
Appreciate 0
      03-25-2020, 02:02 PM   #2
SAMM3Y
Lieutenant Colonel
SAMM3Y's Avatar
1552
Rep
1,755
Posts

Drives: 2008 m3
Join Date: Feb 2018
Location: NorCal

iTrader: (1)

I recently switched to 275/30/19 rear from 295/30/19 rear. The car is noticeably more athletic especially in third/fourth gear high rev range. Saved 3lbs/tire too as well as weight in the wheels I changed to for a total weight savings of 6lbs per rear wheel. At first I thought the car looked really funny having. 275/30/19 rear, I didn't like it, but it has grown on me. The ride is harsh but I live in the land with the highest road/gas taxes and the poorest roads.
__________________
9ers
Appreciate 1
Scharbag1236.00

      03-25-2020, 04:42 PM   #3
Scharbag
Major
Scharbag's Avatar
Canada
1236
Rep
1,303
Posts

Drives: 2011 E92 M3
Join Date: Oct 2017
Location: Victoria

iTrader: (0)

Garage List
2011 BMW E92 M3  [0.00]
Quote:
Originally Posted by SAMM3Y View Post
I recently switched to 275/30/19 rear from 295/30/19 rear. The car is noticeably more athletic especially in third/fourth gear high rev range. Saved 3lbs/tire too as well as weight in the wheels I changed to for a total weight savings of 6lbs per rear wheel. At first I thought the car looked really funny having. 275/30/19 rear, I didn't like it, but it has grown on me. The ride is harsh but I live in the land with the highest road/gas taxes and the poorest roads.
Thanks!

And I know for a fact that Saskatchewan roads are waaaaay worse than your roads in NorCal!!! NorCal is like smooth butter compared to the winter beaten shite in SK.

Thank gawd I moved to Victoria where the roads are generally really nice. My left nut to have my 4.10 gears back but such is life. Perhaps in the future I will buy a 4.10 again - likely once my factory 3.85 needs a rebuild.

Cheers,
__________________

2011 E92 M3 - 6MT, ZCP, Dinan Stuff
A wise friend told me "I stopped trying to make a slow car go fast. Instead, I bought a fast car." Sound advice.
Appreciate 1
SAMM3Y1552.00

      03-25-2020, 04:45 PM   #4
pbonsalb
Major General
2624
Rep
7,091
Posts

Drives: 08 E90 M3, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: Concord, NH

iTrader: (3)

I am thinking about trying 285/30/18 or 295/30/18 in place of the 295/35/18 that I am running now and was also curious about ride. My fronts would stay 265/35/18. The goal would be to effectively shorten the final drive. Going to a 285/30/18 rear on a 6MT with 3.85 gives the equivalent of a 4.10.
Appreciate 0
      03-25-2020, 04:58 PM   #5
Scharbag
Major
Scharbag's Avatar
Canada
1236
Rep
1,303
Posts

Drives: 2011 E92 M3
Join Date: Oct 2017
Location: Victoria

iTrader: (0)

Garage List
2011 BMW E92 M3  [0.00]
Quote:
Originally Posted by pbonsalb View Post
I am thinking about trying 285/30/18 or 295/30/18 in place of the 295/35/18 that I am running now and was also curious about ride. My fronts would stay 265/35/18. The goal would be to effectively shorten the final drive. Going to a 285/30/18 rear on a 6MT with 3.85 gives the equivalent of a 4.10.
Yeah, 4.10 is 6.5% shorter than 3.85. If I go from 275/35/19 to 275/30/19, that gets me a 4.1% shorter FD which will be noticible. Basically, works out to be a 4.00 rear end relative to what I am running now (or a 3.96 compared to factory size rear tires). I just do not want the ride to get silly harsh.

Thanks again for the input.

Cheers,
__________________

2011 E92 M3 - 6MT, ZCP, Dinan Stuff
A wise friend told me "I stopped trying to make a slow car go fast. Instead, I bought a fast car." Sound advice.
Appreciate 0
      03-25-2020, 08:42 PM   #6
Yugo
Second Lieutenant
United_States
173
Rep
259
Posts

Drives: M3
Join Date: Aug 2012
Location: VA

iTrader: (0)

I am currently running 285/30/19 it's just perfect! Not harsh ride, looks great. Had stock size 18's before.
Appreciate 1
Scharbag1236.00

      03-26-2020, 06:22 PM   #7
Scharbag
Major
Scharbag's Avatar
Canada
1236
Rep
1,303
Posts

Drives: 2011 E92 M3
Join Date: Oct 2017
Location: Victoria

iTrader: (0)

Garage List
2011 BMW E92 M3  [0.00]
Quote:
Originally Posted by Yugo View Post
I am currently running 285/30/19 it's just perfect! Not harsh ride, looks great. Had stock size 18's before.
It does not look like PS4S are available in 285/30/19 size...
__________________

2011 E92 M3 - 6MT, ZCP, Dinan Stuff
A wise friend told me "I stopped trying to make a slow car go fast. Instead, I bought a fast car." Sound advice.
Appreciate 0
      03-26-2020, 06:42 PM   #8
Yugo
Second Lieutenant
United_States
173
Rep
259
Posts

Drives: M3
Join Date: Aug 2012
Location: VA

iTrader: (0)

Correct, they are not available yet. I went w pss.
Attached Images
 

Last edited by Yugo; 03-26-2020 at 07:22 PM..
Appreciate 1
Scharbag1236.00

      03-26-2020, 11:31 PM   #9
SAMM3Y
Lieutenant Colonel
SAMM3Y's Avatar
1552
Rep
1,755
Posts

Drives: 2008 m3
Join Date: Feb 2018
Location: NorCal

iTrader: (1)

So I did the calculator between the 295/30/19 and 275/30/19 which is my current setup coming from the previous. The overall diameter difference is only about 12mm, with 275/35 and 275/30 the difference is 26mm which is obviously more substantial. I think your concerns will be aesthetic as well as ride comfort, I'm still not sold on mine, it looks funny, might be the wheels I'm using too but I just don't think it looks right on the rear end. I used a 12mm spacer too to try and fatten it up back there. It grows on me more but I loved having that fatty rear, maybe a 285/30/19 is a good compromise, won't get the fd ratio though you desire.
__________________
9ers
Appreciate 0
      03-26-2020, 11:37 PM   #10
OmairK
Engineer
United_States
8
Rep
62
Posts

Drives: 1995 M3 - 2011 E90 M3 6M ZCP
Join Date: Apr 2019
Location: NY

iTrader: (0)

Any reason why we don't select the XL load rating for the PS4S or the PSS?

Omair
Appreciate 0
      03-27-2020, 06:53 AM   #11
//steve\\
First Lieutenant
//steve\\'s Avatar
United_States
292
Rep
369
Posts

Drives: 2012 E92 M3
Join Date: May 2012
Location: Atlanta, GA

iTrader: (1)

I don't think tires make all that much difference in ride harshness. I've certainly never in my life changed tires and suddenly felt like the car ride significantly different for better or worse. Suspension plays a lot more to that IMO.

I'm running overall smaller sizes than OE and no real complaints. 265/35/18 front and 295/30/18 rear.
__________________
Steve::::2012 AW E92::::IG - @sjs0433
Appreciate 0
      03-27-2020, 08:11 AM   #12
pbonsalb
Major General
2624
Rep
7,091
Posts

Drives: 08 E90 M3, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: Concord, NH

iTrader: (3)

What brand/model 295/30/18?
Appreciate 0
      03-27-2020, 08:27 AM   #13
Richbot
Major General
1915
Rep
5,072
Posts

Drives: Jerez Black E90
Join Date: Sep 2007
Location: STL

iTrader: (5)

I use the 275/30-19 square on 9.5" 220M's. I really like it. Not as much as an 18" setup, but it works great.

285/30-19 on a 9.5 is an OEM Mercedes rear fitment.

Try 275/30-19 front and rear, on your staggered ZCP wheels. If you hate it, you've got a spare pair of rears. A 275/30-19 on a 9" rim isn't going to look that pinched, the 275/30-19 PS4S I have on my 9.5's are even just a hair stretched-looking, because of the short sidewall you don't get near as much bulge as pinching a taller-sidewall tire.
__________________
Appreciate 1
Scharbag1236.00

      03-27-2020, 10:54 AM   #14
Scharbag
Major
Scharbag's Avatar
Canada
1236
Rep
1,303
Posts

Drives: 2011 E92 M3
Join Date: Oct 2017
Location: Victoria

iTrader: (0)

Garage List
2011 BMW E92 M3  [0.00]
Quote:
Originally Posted by Richbot View Post
I use the 275/30-19 square on 9.5" 220M's. I really like it. Not as much as an 18" setup, but it works great.

285/30-19 on a 9.5 is an OEM Mercedes rear fitment.

Try 275/30-19 front and rear, on your staggered ZCP wheels. If you hate it, you've got a spare pair of rears. A 275/30-19 on a 9" rim isn't going to look that pinched, the 275/30-19 PS4S I have on my 9.5's are even just a hair stretched-looking, because of the short sidewall you don't get near as much bulge as pinching a taller-sidewall tire.
Oof, with 15mm front spacers, I would worry about rub with 275/30/19 tires... No so much due to the radius, but just simply the width when turning...

But I do like the idea!!

And I just checked my tires - seems like I still have 5/32 on the rears after 30,000KM... Either these PS4S tires are magical or I need to drive it harder... Way better life than the PSS I ran before.

Thank you all for the input!
__________________

2011 E92 M3 - 6MT, ZCP, Dinan Stuff
A wise friend told me "I stopped trying to make a slow car go fast. Instead, I bought a fast car." Sound advice.
Appreciate 0
      03-27-2020, 12:30 PM   #15
//steve\\
First Lieutenant
//steve\\'s Avatar
United_States
292
Rep
369
Posts

Drives: 2012 E92 M3
Join Date: May 2012
Location: Atlanta, GA

iTrader: (1)

Quote:
Originally Posted by pbonsalb View Post
What brand/model 295/30/18?
Michelin Cup2

Not a ton of options in this size but it will do.
__________________
Steve::::2012 AW E92::::IG - @sjs0433
Appreciate 0
      03-27-2020, 09:28 PM   #16
pbonsalb
Major General
2624
Rep
7,091
Posts

Drives: 08 E90 M3, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: Concord, NH

iTrader: (3)

Good tire but expensive and fast wearing.
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 06:46 AM.




m3post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST