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      04-07-2023, 04:23 PM   #1
sl0m0
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Weight Weenies

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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.
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      04-07-2023, 04:36 PM   #2
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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.
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      04-07-2023, 04:41 PM   #3
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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).
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      04-07-2023, 04:46 PM   #4
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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.
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      04-07-2023, 04:47 PM   #5
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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).
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      04-07-2023, 04:50 PM   #6
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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.
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      04-07-2023, 04:52 PM   #7
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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.
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      04-07-2023, 05:05 PM   #8
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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.
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      04-07-2023, 05:10 PM   #9
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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.....
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      04-07-2023, 05:19 PM   #10
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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.
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      04-07-2023, 05:26 PM   #11
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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
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      04-07-2023, 05:27 PM   #12
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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?
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      04-07-2023, 05:50 PM   #13
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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!
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      04-07-2023, 05:53 PM   #14
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I'm starting with forged wheels, but I'm also not counting grams. I intend on weighing the wheels before mounting.
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      04-07-2023, 05:55 PM   #15
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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".
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      04-07-2023, 05:57 PM   #16
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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.
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      04-07-2023, 06:01 PM   #17
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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.
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      04-07-2023, 06:05 PM   #18
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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.
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      04-07-2023, 06:15 PM   #19
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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.
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      04-07-2023, 06:18 PM   #20
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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?
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      04-07-2023, 06:23 PM   #21
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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.
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      04-07-2023, 06:24 PM   #22
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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!
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