[littleoldman]

Has anyone taken their cars to a lower weight?
What have you done?

What can easily be removed and reinstalled (if need be)?

Rear seats
Rear seat floor mats
Trunk Lining
Front Hood sound dampening
No rear license plate frame
No front license plate
Never fill the Windshield fluid (Never use it as I dont want streaks over teh car)
No crap in car, ever, no books in glove box
Not looking to switch exhausts at this point.
The 6spd is 60 or is it 80 lbs less?
The black paint is less weight than the LBB and MG (white is the lightest due to no metallic)
Can you get lighter wheels than factory?
How much weight is saved without Exec Package?
I wont be adding spoilers, wings or such as even in Carbon Fiber they add weight.

I am looking to lose 15 lbs from my fat body.

If I could find a set of lightweight M3 cloth seats that would be awesome (anybody?)

GOAL - Trying to get 200Lbs out of the car (not counting my 15lb fat ass)

Anyone have other ideas to help?

[MdMcoupe]

Maybe a Lotus Exige is more your speed.

Dont forget all the speakers, amps, radio, oh the air bags too. Seats... Lol carbon fiber panels, hood, roof? Aluminum... Well it has a lot of aluminum suspension parts.

I've been down this road before making a 2500lb 500hp Mcoupe. It doesn't make for an enjoyable street car.

Without major changes I really don't see you losing more than 200lbs (idk), and from the sounds of it what your removing is more of an inconvenience when you do drive.

The M2 is portly, simple as that. Blame government regulations on safety and crash features.

Good luck, live and learn. I did. My clown shoe sits in the garage now and goes straight in a trailer for track events. It can get out of control.

[MdMcoupe]

Good luck

[zenmaster]

http://f87.bimmerpost.com/forums/sho....php?t=1228639

[rouxeny]

I would recommend cutting out all processed carbs from your diet. No bread, no rice, no sugary drinks, no cereal, no pasta, no cookies, no ice cream. Then, cut your portion sizes down. We eat way too much in the US. If you need a snack, eat some fruit. Eat a health snack sometime before and after lunch. Learn to live with the feeling of hunger, over time, it will be easier to deal with.

You'll have to get below 1800 cal/day.

If you exercise, you can eat a bit more.

[pruettfan]

Your better off starting with a lighter car. Getting 200 lbs out of a car without stripping the entire interior, airbags passenger seats etc etc is not likely doable. The cost of dropping weight it extensive which is why basically no mainstream car manufacturer is able to do so and sell the car for a decent price. You could put a carbon fiber drive shaft and carbon fiber wheels on it and drop maybe 70 lbs at the cost of about 16-18k.

The better way to go would be to buy a Lotus Exige or Elise.

[Twt]

Driving school . I have ridden with several pro drivers including a couple recently in the M2 at Sebring and Road Atlanta. They taught me that all of us leave 2-4 seconds on the table, depending on the track and driver. While a 200lb weight loss will be a PITA you will probably only gain .5 seconds per lap and your car will loose its street comfort.

[Dav3]

From the german 2er forum

Special equipment
DKG: + 25kg/55lbs
Sunroof: + 13kg/28lbs
Electr. Seats: + 6.2kg/13.6lbs
MPE exhaust: -2.7kg/6lbs

Lightweight offers some weight reduction solutions like carbon door panels, lightweight battery etc.

http://lightweight-titanauspuffanlag...erieur-m2.html

But if you really want to reduce some weight you have to take into consideration the standard bmw 50/50 weight distribution or your ride will suffer

[Artemis]

If considering to seriously shave off weight, save yourself the money and effort and look for another car.

BMW will shave off some weight for the M2 CS, but don't expect any significant weight reduction. Certainly no CSL, as the "L" ("Leichtbau") wouldn't be justified.

[Tralfaz]

Since it really seems you are talking about making a track only car just buy this:

http://www.bmw-motorsport.com/en/cars/bmw-m235ir.html

I rode in one at a track event. It pretty much has all the weight savings you mentioned. It does have a few weight additions such as roll cage, fire suppression, and built in lifting system. Also only available with DCT.

[No Boost]

The M2 doesn't feel as heavy as the lb number suggests. It's easier and cheaper to add power as opposed to lessening weight. It's very easy to get this car to 400 bhp by adding a stage 1 tune or downpipe.

[Aronis]

Originally Posted by rouxeny

I would recommend cutting out all processed carbs from your diet. No bread, no rice, no sugary drinks, no cereal, no pasta, no cookies, no ice cream. Then, cut your portion sizes down. We eat way too much in the US. If you need a snack, eat some fruit. Eat a health snack sometime before and after lunch. Learn to live with the feeling of hunger, over time, it will be easier to deal with.

You'll have to get below 1800 cal/day.

If you exercise, you can eat a bit more.

That made my Day!

I too need to loose weight, gained 30 pounds due to thyroid surgery, man being hypothyroid helps you gain weight fast! If I remove my seat (ass) I can loose 50! Remove my side handles I can loose more. If I shave my entire body I'll loose another 20!

Mike

[littleoldman]

Thanks everyone.
I am on the diet that the Surgeon General above described. I am married to a spaniard and we only eat the Mediterranean diet

I think there are ways to subtract 100lbs...maybe not 200lbs without sacrificing ride quality or experience.

I dont want a Lotus, and suggesting one is silly as that car is only a "track" car (impossible to get over the cowl, so low to the ground tough to get in and out, no room for daughters music equipment, 2 seats vs 2+ and I could go on and on.

I am totally comfortable with road/track feel for DD (as all my other cars are Porsches). Just would like this car to be 3250 vs 3450 lbs.

Q: do you think the M2CS will be 3200? I am waiting for that!

[Aronis]

carpets must weight 20 pounds!

[oldmanstyle]

Le sigh. These threads get so annoying when they're filled with diet recommendations, driver training, taking a shit before you get in the car, etc. Can't we just embrace our enthusiast nature for once and discuss actual ways to drop weight on the lightest M-car that is currently available?

[2M]

Lighter battery, gut out the rear seats, gut out trunk trims and tools, get some performance seats or get your hands on some manual ones, gut out the exhaust and just do straight pipes. Install the CF roof. That should get you close to -200.

[Twt]

Originally Posted by Stage IV

The M2 doesn't feel as heavy as the lb number suggests. It's easier and cheaper to add power as opposed to lessening weight. It's very easy to get this car to 400 bhp by adding a stage 1 tune or downpipe.

Unlike Joe Biden I will acknowledge that this is plagiarized:
(P+1)/W=P/(W-X)

Where P=Horsepower
W=Weight
X= Weight loss needed to obtain same power to weight ratio as adding 1 horsepower

Solving this I get X=W/(P+1)

so the amount of weight loss needed to equal one horsepower gain will depend on the initial power and weights..

An example if we have a 3200 pound car with 320 horsepower, the weight loss needed to be equal to a 1 horsepower gain is:

X=W/(P+1)=3200/(320+1) or approximately 10 pounds

So what I see here is that the starting weight to power ratio is a pretty close estimate of the weight loss needed to equal a 1 horspower gain.

So if you are around 15 pounds per horsepower, for example a 3600 pound car with 240 horsepower, then you would need to loose about 15 pounds to be equivalent of 1 horsepower gain..

X=W/(P+1)=3600/(240+1) is about 15 pounds loss needed to be equal to 1 horspower gain

[littleoldman]

I like the lightweight battery- Have this in one of the 911s - it weighs only 2.6 lbs...Yes 2.6lbs. That saves over 30Lbs (but it is in the trunk so - hmmm)
http://products.batterytender.com/Ba...t-Battery.html

I didnt think of the CF front hood - who makes a really good one? My car is Black so nice CF would look great without much contrast.

I would be good going cat-less exhaust - I do that on my 91 964 (plus it sounds great), but that car is old enough to pass NYS Inspection without issue.

I will look for LW seats from a M3 (cloth and manual)...is anyone wants to trade.

These are all great ideas and I think 200lbs will be achievable.

Not looking to spend a ton of money in the lightweight pursuit as I currently have a deposit for a CS when that comes out.

[Mavus]

Originally Posted by littleoldman

Thanks everyone.
I am on the diet that the Surgeon General above described. I am married to a spaniard and we only eat the Mediterranean diet

I think there are ways to subtract 100lbs...maybe not 200lbs without sacrificing ride quality or experience.

I dont want a Lotus, and suggesting one is silly as that car is only a "track" car (impossible to get over the cowl, so low to the ground tough to get in and out, no room for daughters music equipment, 2 seats vs 2+ and I could go on and on.

I am totally comfortable with road/track feel for DD (as all my other cars are Porsches). Just would like this car to be 3250 vs 3450 lbs.

Q: do you think the M2CS will be 3200? I am waiting for that!

Based on the M4 gts weight it's a tough call. I doubt it will be more than 50-100lbs difference.

Another item to evaluate for weight reduction is suspension, stock vs coilovers.

Seats and battery are good items to reduce weight. I would also like to see M2 test data with 513m wheels.

Beyond this mods start to get ugly with limited benefits. There is one no cost weight delete mod - drive with 1/2 tank.

[littleoldman]

the half tank is tough - the tank is already small.

[rouxeny]

I always thought the potential for weight reduction while keeping the car a DD or with some modicum of comfort, is low. If your goal is max track performance, another car will do it better. If it's just a desire to cut weight, then the ways you mentioned are pretty standard. However I doubt it will cut enough weight to make any meaningful difference at a track. In order to do that, I'd think you need to get pretty drastic and do things like take out all interior trim, remove AC system, remove radio and speakers, idrive, etc.

[littleoldman]

No, I dont want my M2 to be a track car - I have a 911 as my track car.

I was reading and trying to figure out why other manufacturers cars are 3200-3300 and thought I would make this one lighter so I asked some experts what they would do...and how much weight it might reduce. All I want is a bit more of an edge via a lighter car. I also suspect 150-200 lbs makes better MPG.