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Just as the title states. I just curious to see what you guys have done for shedding weight on our E60s. I know the obvious like hood, trunk, seats etc. But honestly I do not want to lose my stock seats and comfort options that I so much enjoy. I did that with my m3 and its time to ride a little more comfortably. I did a search but came up with a lot of E39 threads on this subject.

So I am wondering who all has done some mods to shave the lbs. Or what adjustments to the car have you guys done? ie. lighter battery etc.

:dunno:
 

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I have taken 266 lbs off of the beast which has made a huge difference.

My list is as follows:-
Seats (92 lbs)
Headers and cat back exhaust:-(70)
Brakes (50)
Cf Bonnet (30)
Wheels (24)

Then there is the light weight battery like you have stated, cf trunk and roof. The next step would be going radical with plexi windows, rear seats removal, adding cf fenders, and replacing parts with those of titanium material.

Hope i helped :M5rev:
 

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I would think the Wheels and the interior parts such as the seats and the rear seats would make a big difference.
 

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I have taken 266 lbs off of the beast which has made a huge difference.

My list is as follows:-
Seats (92 lbs)
Headers and cat back exhaust:-(70)
Brakes (50)
Cf Bonnet (30)
Wheels (24)

Then there is the light weight battery like you have stated, cf trunk and roof. The next step would be going radical with plexi windows, rear seats removal, adding cf fenders, and replacing parts with those of titanium material.

Hope i helped :M5rev:
What did you do to the seats and brakes. Also, I have the Vorsteiner hood and they said their CF bonnet doesn't really offer any weight savings over the stock hood. Both are already light. What brand do you have?

Regards,

Darren
 

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No kidding.....the factory one is about as light a hood as I've ever felt....feels like fiberglass almost...
 

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Evosport has stated an 11 lbs. weight saving on their M5 with the Vorsteiner hood.
The Brembo brakes can help some but if you do the 16" front rotor (looks awesome) they are heavy. The 2 piece set up with aluminum hat helps and the monoblok forged aluminum calipers do shed a few lbs. but I do not thing very much.
Wheels can help probably at best 10 lbs per corner but I would think this is extreme.
The best would be changing the seats but this changes the cars interior appearance. In the GT3 for example the stock seats are 76 lbs and the CF race seats are 15 lbs.
My M5 weighed 4081 lbs with 1/2 tank of gas in it. I was not in the car. I do not see how much more you could do without affecting the character of the M5.

Cheers, M5Ranger
 

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My car weighs 4,160 lbs with a brand new full tank of gas and without me in the car. The car was weighed on a CAT certified scale The breakdown front to back is as follows:

Front = 2140
Rear = 2020
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Total = 4160

This weight was measured this past Friday evening.

Thanks,

Darren
 

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What did you do to the seats and brakes. Also, I have the Vorsteiner hood and they said their CF bonnet doesn't really offer any weight savings over the stock hood. Both are already light. What brand do you have?

Regards,

Darren
Regarding the seats, they are corbeau TRS and weigh only 27lbs each... The brakes are brembo's 15 inch all around and are 50 lbs according to Brembo.

I took my hood weight from Dave's notes. Note there is the light weight battery which another low cost mod can be added.


Hood:
OEM:47.7 lb; Vorsteiner GTR:28.6 lb; CA & E6: 17.6 lb.
Weight saving: 19.1-30.1 lb

Item / weight saving / finished cost:
cf hood / 19.1-30.1 lb (GTR, E6) / ~$2,000, ~$2,500
cf trunk lid / 21.1 lb (ViS or CA) /~$1000, ~$2,500
Recaro full function Topline seats / 62 lbs / ~$3,000 OR ultra lightweight seats / 92 lbs/~ $400
Ultra lightweight battery (Voltphreaks, assume 6.5 lb) / 55 lbs / ~$400
SS exhaust (incl headers) / 70 lbs / ~$7,000
Brembos / 48 lbs (similar for Stoptechs) / ~$9,000, ~$5,000
Lightweight wheels / 24 lbs ~$2,500
Lightweight flywheel (UUC clutch pkg) / 13.5 lbs / ~$2,600
Dump the usless tire goo / 6 lb / $0
Total weight loss: 318.7-358.2 lbs.
Ranger, is the listed weight loss of evosport the single or double sided cf bonnet ?
 

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Black M5 right now I do not recall the article about their M5. I think it was in Modified Luxury & Exotics mag. about a year ago. It was there where I read about the 11 lbs. weight savings with the Vorsteiner hood. I believe it was double sided.
 

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My car weighs 4,160 lbs with a brand new full tank of gas and without me in the car. The car was weighed on a CAT certified scale The breakdown front to back is as follows:

Front = 2140
Rear = 2020
------
Total = 4160

This weight was measured this past Friday evening.

Thanks,

Darren
That's good to hear. Over a year ago there was quite the discussion on weight, and I weighed my car three times on truck scales, and came up with weights within 10 lbs. What I got on average was 4180 lbs with a full tank, stock tires/wheels and nothing else in the car. I would guess my car is the worst case since I have all the options, including a Blinder M40.

I don't know what the options weigh, but I'll bet the listed 4012 "curb weight' for the M5 is without any options. Sunroof, high end stereo, ventilated comfort seats, pdc, nav, rear side airbags, Sirius radio, heated rear seats, sunshades, and even full leather probably add the additional 170 lbs.
 

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That's good to hear. Over a year ago there was quite the discussion on weight, and I weighed my car three times on truck scales, and came up with weights within 10 lbs. What I got on average was 4180 lbs with a full tank, stock tires/wheels and nothing else in the car. I would guess my car is the worst case since I have all the options, including a Blinder M40.

I don't know what the options weigh, but I'll bet the listed 4012 "curb weight' for the M5 is without any options. Sunroof, high end stereo, ventilated comfort seats, pdc, nav, rear side airbags, Sirius radio, heated rear seats, sunshades, and even full leather probably add the additional 170 lbs.
Mike,

I think you're right on. I have every option available for the model year 2006 as well. The only difference is I'm using the Neez QD7 wheels which offer a small weight savings, race cats which weigh a few pounds less than stock secondaries, and the Dinan exhaust which offers another small weight savings.

I didn't clean out my trunk entirely which had 2 quarts of oil, roll of painters tape, car cleaning stuff and an umbrella. Probably added another 10 lbs or so collectively.

Cheers,

Darren
 

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Black M5 right now I do not recall the article about their M5. I think it was in Modified Luxury & Exotics mag. about a year ago. It was there where I read about the 11 lbs. weight savings with the Vorsteiner hood. I believe it was double sided.
The data in BlackM5's post #9 above pertains to the e39 (OEM and Vorsteiner), in which there is about a 19 lb savings. I haven't seen any weights on the e60 versions.

Dave
 
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