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      01-03-2014, 01:40 PM   #41
Twisted Six
CarbonFiber Engineer @ ZeroMassMotorsports
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Drives: Z4si-coupe
Join Date: Mar 2009
Location: -Laguna Beach Ca.

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Quote:
Originally Posted by dre99gsx View Post
I did some searching but couldn't find a concise Z4M weight reduction strategy thread. Seeing that many of you have removed stock components and actually weighed them, would you be willing to post component weights (as accurate as you can get)?

I'll be posting in here as I weigh various components on my end (I have scales and even do my own corner balancing for the ultimate weight comparisons). Here are some components which seem to be common for removal:

- Rear battery (?lb)
- Passenger Seat (Leather/Heated/Power) = 60 lb
- Driver Seat (Leather/Heated/Power) = 56 lb
- Passenger Door Card (incl. speaker) = 7.6lb
- Intake Air Plenum = 9.2 lb
- Stock Air Filter Box = 4.6 lb
- Exhaust Headers US (shorter) = 8.8 lb
- Exhaust Headers US (longer) = 9.6 lb
- Exhaust Headers EURO (shorter) = 4.6 lb
- Exhaust Headers EURO (longer) = 5.6 lb
- Exhaust Section 1 (US) = 19 lbs
- Exhaust Section 2 (US)
- Exhaust rear muffler = 22 lb ea.
- Rear wheel with tire and logo: 53.8 pound
- Rear Wheel: 9.0J x 18 EH2 IS30 25.88 lb
- Front wheel with tire and logo: 49.4 pound
- Front Wheel: 8.0J x 18 EH2 IS42 24.75 lb
- Front Shock complete assembly = 17 lbs
- Rear Shock and Spring
- Front Sway Bar and Endlink
- Rear Sway Bar and Endlink
- Front Caliper = 12.2 lb
- Front Rotor = 18.4 lb
- Rear Caliper = 7.4 lb
- Rear Rotor = 14.6 lb
- Rear Tools (Air compressor, canister, tow hook) = 5 lb
- Rear hatch cover mechanism = 7.5 lb
- Flywheel
- Aluminum Roof = 38 lb
- Rear Hatch (w/o glass) = 31.6 lb
- Rear Hatch Glass = 15.8 lb
- Door (Shell, Empty) = 30 lb, Everything but door card = 51.6 lb
- Rear Fender = 7 lb
- Hood

NAV and Audio:
04.8 lbs-Harness
01.0 lbs-misc brackets
04.2 lbs-2 Kick panel Speakers
14.2 lbs-2 Rear subwoofers
00.2 lbs-GPS antenna
09.0 lbs-Amps/amp brackets
03.4 lbs-4 mid range speakers
00.2 lbs-2 tweeters
03.6 lbs-GPS/DVD drive
02.4 lbs-Pop-up display
02.6 lbs-Head unit

(If I missed a thread which already covers the above, please link me!)
I just posted the front fender weights a few days ago in some thread, can't recall which or how much. Anyone have a link to share it or the weight I posted ?

Found it. Front fenders weighed in at 9.9lbs. on a premium scale.

Last edited by Twisted Six; 01-03-2014 at 01:45 PM..
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