bimmerpost/
BMW M2 and 2-Series Coupe
BMW Garage BMW Meets Register Today's Posts
home
BMW M2 Forums 2023+ (G87) BMW M2 G87 General Topics

Post Reply
 
Thread Tools Search this Thread
      04-07-2023, 05:23 PM   #1
sl0m0
Major
United_States
1305
Rep
1,012
Posts

Drives: Sedan
Join Date: Oct 2022
Location: az

iTrader: (0)

Weight Weenies

I know we have a thread about 1st mod, and wheels, but I was wanting to create a thread for all weight related mods.

Is the cf package absolutely on everyone's list that is trying to drop weight or is that $ better spent elsewhere? I personally don't care for the look of CF and like a sunroof, but I'm considering adding the cf package because I love the bucket seats and for the undeniable weight reduction.

What's the best bang for the buck weight reductions you guys are finding. Forged wheels and battery are obvious low hanging fruit.

Does the mp exhaust drop any weight?

Let's keep it fun and informative.
Appreciate 1
      04-07-2023, 05:36 PM   #2
Humdizzle
Brigadier General
6519
Rep
3,847
Posts

Drives: 991.2 GT3
Join Date: Oct 2016
Location: Missouri

iTrader: (0)

it all adds up.

its going to be very hard to replicate the carbon seats and cf roof without paying a ton of money aftermarket, so definitely check that box. forged wheels and battery will help alot like you said. the wheels definitely with unsprung mass.cf hood and trunk may eventually come out with the CS (not sure if there is an MP version).

aftermarket or MP exhaust will definitely help.
rear seat delete
carbon ceramics from the g82
__________________

2018 Porsche GT3 6MT

Previous: Ferrari 458 | R35 GTR | F80 M3 | F87 M2c | E46 M3 | E36 M3 | Scion FRS
Appreciate 3
sl0m01304.50
ronin130131067.00
BimmerFix1784.50
      04-07-2023, 05:41 PM   #3
M_Power Rob
Brigadier General
4540
Rep
3,638
Posts

Drives: '23 M240 and '23 M2
Join Date: Jan 2023
Location: South Florida

iTrader: (0)

Quote:
Originally Posted by sl0m0 View Post
I know we have a thread about 1st mod, and wheels, but I was wanting to create a thread for all weight related mods.

Is the cf package absolutely on everyone's list that is trying to drop weight or is that $ better spent elsewhere? I personally don't care for the look of CF and like a sunroof, but I'm considering adding the cf package because I love the bucket seats and for the undeniable weight reduction.

What's the best bang for the buck weight reductions you guys are finding. Forged wheels and battery are obvious low hanging fruit.

Does the mp exhaust drop any weight?

Let's keep it fun and informative.
I have the cf roof and other cf option but not the full package (yes, cf buckets look good but I have sat in them and to sit in them for an hour commute each way to and from work would be a comfort issue...and more importantly, the wife has back/disc issues and I would be dead if I got them in the car).

Want to shed weight re the exhaust, will have to go titanium.

Rims, fully forged of course (dont mess with the cf or magnesium ones, they may be lighter but they are very expensive and not as strong as the forged aluminum).
Appreciate 1
sl0m01304.50
      04-07-2023, 05:46 PM   #4
M2PDX
Lieutenant Colonel
United_States
3414
Rep
1,734
Posts

Drives: 2017 M2
Join Date: Aug 2013
Location: Portland, Oregon

iTrader: (0)

Lithium battery = - 38 lbs

Apex Wheels = - 16 to 20 lbs

6MT = - 48 lbs versus the ZF auto

Carbon Roof = - 13 lbs

Haven't decided on the seats yet. A few reviews mentioned that they interfere with shifting with the 6MT.
Appreciate 3
sl0m01304.50
zero213276.00
ronin130131067.00
      04-07-2023, 05:47 PM   #5
M_Power Rob
Brigadier General
4540
Rep
3,638
Posts

Drives: '23 M240 and '23 M2
Join Date: Jan 2023
Location: South Florida

iTrader: (0)

Quote:
Originally Posted by Humdizzle View Post
it all adds up.

its going to be very hard to replicate the carbon seats and cf roof without paying a ton of money aftermarket, so definitely check that box. forged wheels and battery will help alot like you said. the wheels definitely with unsprung mass.cf hood and trunk may eventually come out with the CS (not sure if there is an MP version).

aftermarket or MP exhaust will definitely help.
rear seat delete
carbon ceramics from the g82

Carbon discs/ceramics not a good choice for street/every day driving. They need to be a certain temp. to work properly. Not sure the G80/82 will fit, either.

I had VIS Racing aftermarket cf hood and decklid on a previous car, was a lot of stress on them with the hydraulics with opening and closing (and the gaps were never perfect).
Appreciate 0
      04-07-2023, 05:50 PM   #6
sl0m0
Major
United_States
1305
Rep
1,012
Posts

Drives: Sedan
Join Date: Oct 2022
Location: az

iTrader: (0)

Quote:
Originally Posted by M2PDX View Post
Lithium battery = - 38 lbs

Apex Wheels = - 16 to 20 lbs

6MT = - 48 lbs versus the ZF auto

Carbon Roof = - 13 lbs

Haven't decided on the seats yet. A few reviews mentioned that they interfere with shifting with the 6MT.
I've got skinny legs so I think I'm gonna be ok with the nut bump.
Appreciate 0
      04-07-2023, 05:52 PM   #7
sl0m0
Major
United_States
1305
Rep
1,012
Posts

Drives: Sedan
Join Date: Oct 2022
Location: az

iTrader: (0)

Quote:
Originally Posted by M_Power Rob View Post
I have the cf roof and other cf option but not the full package (yes, cf buckets look good but I have sat in them and to sit in them for an hour commute each way to and from work would be a comfort issue...and more importantly, the wife has back/disc issues and I would be dead if I got them in the car).

Want to shed weight re the exhaust, will have to go titanium.

Rims, fully forged of course (dont mess with the cf or magnesium ones, they may be lighter but they are very expensive and not as strong as the forged aluminum).
I was initially skipping the seats because I didn't want to get the entire package and my wife won't like them, but since we are getting a g80 "for the fam" I get to do what ever I want with the g87 now.
Appreciate 2
ourlee1499.00
      04-07-2023, 06:05 PM   #8
zero21
Lieutenant Colonel
3276
Rep
1,843
Posts

Drives: G87 sold
Join Date: Nov 2022
Location: Charleston, SC

iTrader: (0)

The weight really needs to come from the front of the car first IMO as it sits 52/48 stock.

Tomorrow I'm going on scales to find out true corner and curb weights.

I don't think the seats are a must personally as the bulk of their weight sits about floor level and center line.

Therefore wheels, a strut brace, anything on front bumper area and hood are my first choices. They also don't void warranties so weight savings are more important to me than tunes and pipes, etc.
Appreciate 3
Tag19941.00
752002553.00
BimmerFix1784.50
      04-07-2023, 06:10 PM   #9
Ghostrider.1127
Ghostrider
Ghostrider.1127's Avatar
195
Rep
142
Posts

Drives: M140iX,Z4M40i,M8 comp,M2g87
Join Date: Jan 2019
Location: Berlin (DE) Stockholm (SVE)

iTrader: (0)

Quote:
Originally Posted by zero21 View Post
.

Tomorrow I'm going on scales to find out true corner and curb weights.
Tomorrow ? why i´m missing something.....
__________________
Appreciate 0
      04-07-2023, 06:19 PM   #10
sl0m0
Major
United_States
1305
Rep
1,012
Posts

Drives: Sedan
Join Date: Oct 2022
Location: az

iTrader: (0)

Quote:
Originally Posted by zero21 View Post
The weight really needs to come from the front of the car first IMO as it sits 52/48 stock.

Tomorrow I'm going on scales to find out true corner and curb weights.

I don't think the seats are a must personally as the bulk of their weight sits about floor level and center line.

Therefore wheels, a strut brace, anything on front bumper area and hood are my first choices. They also don't void warranties so weight savings are more important to me than tunes and pipes, etc.
Man, I almost put a note in my original post saying "*I know zero's gonna comment that we need to focus on the we need to focus on the front"

I was on the road though and didn't have enough time at the gas station. I agree we need to get the weight off the front, and am curious what solutions you come up with.

I also think any weight reduction is going to help the power band be more effective in the lower range.
Appreciate 1
zero213276.00
      04-07-2023, 06:26 PM   #11
zero21
Lieutenant Colonel
3276
Rep
1,843
Posts

Drives: G87 sold
Join Date: Nov 2022
Location: Charleston, SC

iTrader: (0)

Quote:
Originally Posted by sl0m0 View Post
Man, I almost put a note in my original post saying "*I know zero's gonna comment that we need to focus on the we need to focus on the front"

I was on the road though and didn't have enough time at the gas station. I agree we need to get the weight off the front, and am curious what solutions you come up with.

I also think any weight reduction is going to help the power band be more effective in the lower range.


Broken record status I guess
Appreciate 1
DrJLag420842.00
      04-07-2023, 06:27 PM   #12
zero21
Lieutenant Colonel
3276
Rep
1,843
Posts

Drives: G87 sold
Join Date: Nov 2022
Location: Charleston, SC

iTrader: (0)

Quote:
Originally Posted by Ghostrider.1127 View Post
Tomorrow ? why i´m missing something.....
After I buy the car I'm taking it to get weighed so people can understand stock weight and corner weight balance to plan mods.

The thread is titled about weight savings?
Appreciate 3
JustinHEMI7498.50
DrJLag420842.00
Tag19941.00
      04-07-2023, 06:50 PM   #13
MmmmmM2
Colonel
MmmmmM2's Avatar
2665
Rep
2,463
Posts

Drives: 2021 M2C
Join Date: Mar 2019
Location: Claremont, CA

iTrader: (0)

Garage List
2016 Mazda CX-5  [0.00]
2021 BMW M2C  [0.00]
Quote:
Originally Posted by zero21 View Post
After I buy the car I'm taking it to get weighed so people can understand stock weight and corner weight balance to plan mods.

The thread is titled about weight savings?
Doing the lord's work!
Appreciate 1
zero213276.00
      04-07-2023, 06:53 PM   #14
JustinHEMI
Not great. Not terrible
JustinHEMI's Avatar
7499
Rep
2,698
Posts

Drives: 2024 BMW X3 M40i
Join Date: Apr 2016
Location: Lebanon, TN

iTrader: (2)

I'm starting with forged wheels, but I'm also not counting grams. I intend on weighing the wheels before mounting.
__________________
Current: 2024 BMW X3 M40i.
Appreciate 3
zero213276.00
ronin130131067.00
BimmerFix1784.50
      04-07-2023, 06:55 PM   #15
sl0m0
Major
United_States
1305
Rep
1,012
Posts

Drives: Sedan
Join Date: Oct 2022
Location: az

iTrader: (0)

Quote:
Originally Posted by zero21 View Post
After I buy the car I'm taking it to get weighed so people can understand stock weight and corner weight balance to plan mods.

The thread is titled about weight savings?
Yeah it's a title about weight savings. It's a joke about bikes kinda, guys that have to drop every ounce possible from their bicycle have whole forums, not just threads, called "weight Weenies".
Appreciate 0
      04-07-2023, 06:57 PM   #16
JustinHEMI
Not great. Not terrible
JustinHEMI's Avatar
7499
Rep
2,698
Posts

Drives: 2024 BMW X3 M40i
Join Date: Apr 2016
Location: Lebanon, TN

iTrader: (2)

Quote:
Originally Posted by sl0m0 View Post
Yeah it's a title about weight savings. It's a joke about bikes kinda, guys that have to drop every ounce possible from their bicycle have whole forums, not just threads, called "weight Weenies".
And that goes to my comment about "counting grams." I'm a backpacker and there are "ultra light" cultists that count every tiny gram on their back.
__________________
Current: 2024 BMW X3 M40i.
Appreciate 1
sl0m01304.50
      04-07-2023, 07:01 PM   #17
Ctothej
Lieutenant
742
Rep
494
Posts

Drives: BMW 330i M Sport, BMW G87 M2
Join Date: Sep 2022
Location: Sydney

iTrader: (0)

Quote:
Originally Posted by JustinHEMI View Post
I'm starting with forged wheels, but I'm also not counting grams. I intend on weighing the wheels before mounting.
Do report back on this - keen to see if it's something I should look at as well for weight saving.
Appreciate 1
      04-07-2023, 07:05 PM   #18
JustinHEMI
Not great. Not terrible
JustinHEMI's Avatar
7499
Rep
2,698
Posts

Drives: 2024 BMW X3 M40i
Join Date: Apr 2016
Location: Lebanon, TN

iTrader: (2)

Quote:
Originally Posted by Ctothej View Post
Do report back on this - keen to see if it's something I should look at as well for weight saving.
Will do, especially since it's a new wheel coming to market. I'll confirm or correct any manufacturer claims.
__________________
Current: 2024 BMW X3 M40i.
Appreciate 0
      04-07-2023, 07:15 PM   #19
Tag
this is the way
Tag's Avatar
19941
Rep
8,935
Posts

Drives: N-1 starfighter
Join Date: Jan 2007
Location: Chicago

iTrader: (3)

I'm not getting this car for a while, but my plan is as follows.
  • CF roof to remove weight in one of the worst places possible, up top. Also has an aesthetic benefit. Note: This actually reduces the weight of US cars by ~50 lbs since it deletes the sunroof.
  • Get lighter forged wheels which removes unsprung weight to improve handling and also provides better ride comfort. Also has an added aesthetic benefit.
  • Lower the car with a HAS kit in order to retain adaptive suspension. While this doesn't necessarily reduce the cars weight it does lowers the entire cars center of gravity which vastly improves handling. Also has an aesthetic benefit.
Appreciate 4
sl0m01304.50
BimmerFix1784.50
Bumpinjeep6178.00
ourlee1499.00
      04-07-2023, 07:18 PM   #20
JustinHEMI
Not great. Not terrible
JustinHEMI's Avatar
7499
Rep
2,698
Posts

Drives: 2024 BMW X3 M40i
Join Date: Apr 2016
Location: Lebanon, TN

iTrader: (2)

Quote:
Originally Posted by Tag View Post
I'm not getting this car for a while, but my plan is as follows.
  • CF roof to remove weight in one of the worst places possible, up top. Also has an aesthetic benefit. Note: This actually reduces the weight of US cars by ~50 lbs since it deletes the sunroof.
  • Get lighter forged wheels which removes unsprung weight to improve handling and also provides better ride comfort. Also has an added aesthetic benefit.
  • Lower the car with a HAS kit in order to retain adaptive suspension. While this doesn't necessarily reduce the cars weight it does lowers the entire cars center of gravity which vastly improves handling. Also has an aesthetic benefit.

Have you decided on which HAS kit yet?
__________________
Current: 2024 BMW X3 M40i.
Appreciate 0
      04-07-2023, 07:23 PM   #21
Tag
this is the way
Tag's Avatar
19941
Rep
8,935
Posts

Drives: N-1 starfighter
Join Date: Jan 2007
Location: Chicago

iTrader: (3)

Quote:
Originally Posted by JustinHEMI View Post
Have you decided on which HAS kit yet?
M Performance since you can now get it port installed, option code Z58. Car will have it on day one and it will be fully covered under factory warranty 4yr/50k. Win win.
Appreciate 4
JustinHEMI7498.50
sl0m01304.50
BimmerFix1784.50
ourlee1499.00
      04-07-2023, 07:24 PM   #22
JustinHEMI
Not great. Not terrible
JustinHEMI's Avatar
7499
Rep
2,698
Posts

Drives: 2024 BMW X3 M40i
Join Date: Apr 2016
Location: Lebanon, TN

iTrader: (2)

Quote:
Originally Posted by Tag View Post
M Performance since you can now get it port installed, option code Z58. Car will have it on day one and it will be fully covered under factory warranty 4yr/50k. Win win.
Nice! Thanks!
__________________
Current: 2024 BMW X3 M40i.
Appreciate 1
sl0m01304.50
Post Reply

Bookmarks


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 02:35 AM.




g87
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, 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