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Z4M - carrying a few too many lbs?
Posted: Tue Dec 04, 2018 10:39 pm
by TomK
Argenta wrote: ↑Tue Dec 04, 2018 9:27 pm
TomK wrote: ↑Tue Dec 04, 2018 5:08 pm
Pretty sure it's steel, but all the same, I find it unlikely to weigh the same as a battery!
No, it’s aluminium as is the bonnet.
That’s surprises me, but I'm not near my car at the moment, you tried sticking a magnet on yours, or what makes you say it is ali? If it is indeed aluminium then it most definitely won't be weighing 17kg that is for sure!
Geoff steel seem to think it's steel too, certainly the m3 one I removed was.
https://www.geoffsteel.co.uk/shop/bmw-e86-z4-roof-skin/
Z4M - carrying a few too many lbs?
Posted: Wed Dec 05, 2018 3:21 pm
by Vanne
No its steel. weighed mine today, its 9 KGS. (mine was 9.0, as it had been painted black) so total weight loss is 7KGS. plus or minus a few grams. Still a pretty darn good weight savings for up top.
My bad for quoting said 17Kgs.. the other pieces on the list are sound though.
White dot = fridge magnet.. def steel
Z4M - carrying a few too many lbs?
Posted: Wed Dec 05, 2018 6:33 pm
by TomK
Cheers Vanne, that clears that up then. It's definitely a mod on the list... miss my m3 one, they do look good
Shame we both never seem to have got the special aluminium edition we've been TOLD they got in Norway
Z4M - carrying a few too many lbs?
Posted: Wed Dec 05, 2018 8:13 pm
by Argenta
Thats right I was misinformed by an old magazine road test..
The old magnet test showed its certainly steel, while the bonnet of course is aluminium.
My bad!
Z4M - carrying a few too many lbs?
Posted: Fri Dec 07, 2018 1:54 pm
by Beedub
i tell you what after removing the rear boot lid.... my god.. now that does weight something... Easily 35kg in roadster form, if someone developed a carbon lid... this would drop the weight massively !! The stock bonnet is a lovely piece.
Z4M - carrying a few too many lbs?
Posted: Fri Dec 07, 2018 3:30 pm
by road warrior
buzyg wrote: ↑Sat Nov 24, 2018 10:44 pm
I do agree it's a bit of a podge for a sports car. But as said it is actually lighter than most. Plus has that wonderful engine and throttle response to make up. Having two Mx5s and an MR in the family I can say the MR, despite being the lard arse, changes direction best.
I realise i need to get out more,, but what is an MR ?
Z4M - carrying a few too many lbs?
Posted: Fri Dec 07, 2018 3:36 pm
by buzyg
road warrior wrote: ↑Fri Dec 07, 2018 3:30 pm
buzyg wrote: ↑Sat Nov 24, 2018 10:44 pm
I do agree it's a bit of a podge for a sports car. But as said it is actually lighter than most. Plus has that wonderful engine and throttle response to make up. Having two Mx5s and an MR in the family I can say the MR, despite being the lard arse, changes direction best.
I realise i need to get out more,, but what is an MR ?
The Z4 ///M Roadster actually has no Z4 badges any where on it. Just ///M badges. 16 if I recall.
Hence both it and the Z3 ///M Roadster are commonly referred to as MR.
Though it is the steering, Brakes, suspension, and that Glorious engine that really make it an ///MR.
Z4M - carrying a few too many lbs?
Posted: Fri Dec 07, 2018 4:12 pm
by road warrior
buzyg wrote: ↑Fri Dec 07, 2018 3:36 pm
road warrior wrote: ↑Fri Dec 07, 2018 3:30 pm
buzyg wrote: ↑Sat Nov 24, 2018 10:44 pm
I do agree it's a bit of a podge for a sports car. But as said it is actually lighter than most. Plus has that wonderful engine and throttle response to make up. Having two Mx5s and an MR in the family I can say the MR, despite being the lard arse, changes direction best.
I realise i need to get out more,, but what is an MR ?
The Z4 ///M Roadster actually has no Z4 badges any where on it. Just ///M badges. 16 if I recall.
Hence both it and the Z3 ///M Roadster are commonly referred to as MR.
Though it is the steering, Brakes, suspension, and that Glorious engine that really make it an ///MR.
so an MR is an M roadster.. gotcha
Z4M - carrying a few too many lbs?
Posted: Fri Dec 07, 2018 4:14 pm
by road warrior
so much to learn, so little time
Z4M - carrying a few too many lbs?
Posted: Fri Dec 07, 2018 5:32 pm
by Mad Professor
Agree my ZMR feels more like my Crombie coat cf to my Eunos which feels more like my Barbour Jacket
However whenever I wear my Crombie it feels rather special in it -bit like my ZMR
Z4M - carrying a few too many lbs?
Posted: Sat Dec 08, 2018 1:35 am
by mark seeker
Vanne wrote: ↑Tue Dec 04, 2018 1:45 am
savings were 15.3 kgs. carbon roof was 1.9kgs before clear coat, and the oem e86 roof weighs about 17.3 kilos.
There is a hell of a lotta weight in the standard oem battery and tray.. 25kgs savings (thats a few big macs)
there is another easy 7kgs in the rear sub woofers alone.
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
Really interesting, thanks for that.
Z4M - carrying a few too many lbs?
Posted: Thu Dec 13, 2018 6:46 am
by Vanne
Z4M - carrying a few too many lbs?
Posted: Thu Dec 13, 2018 10:27 am
by BMWZ4MC
How much weight has that saved so far?!
Z4M - carrying a few too many lbs?
Posted: Thu Dec 13, 2018 10:40 am
by Phoenixboy
it always amused me over the years how much time effort and money people would spend to shave some weight off there bike or car, but did not consider that the vast amount of money they had just spent could easily have been achieved by loosing a few pounds themselves
Z4M - carrying a few too many lbs?
Posted: Thu Dec 13, 2018 10:43 am
by MrPT
Remember, Vanne - Adrian Newey just told Cosworth to make the clear lacquer on the plenum of their new V12 an optional extra because it weighs 80grams. Keep fighting.
