z4m , whats the actual weight??

"M" Specific discussion
Post Reply
Online
User avatar
Beedub
Lifer
Lifer
Posts: 9139
Joined: Wed Sep 10, 2008 2:25 pm
Location: Sutton Coldfield

z4m , whats the actual weight??

Post by Beedub » Sat Dec 16, 2017 11:25 pm

Franzino wrote:
Sat Dec 16, 2017 11:12 pm
Beedub wrote:
Fri Dec 15, 2017 3:20 pm
Has anyone weighted their car recently???

im seeing so many different figures for the weight???

roadster 1410kg and coupe 1425kg is what i though it was??? but then i see some publications listing roadster at 1485 and the coupe over 1500???? surely that cant be right??

So just wondering if anyones actually weighted their car or seen the corner weight figures?
Corner Weight of my Z4M roadster (Total: 1.413kg = no driver / no wheels / with fluids / gas tank 75%)

Image

Nice numbers!

User avatar
Fishy Dave
Member
Member
Posts: 912
Joined: Sun Jul 05, 2015 8:01 pm
Location: Bath, England
Contact:

z4m , whats the actual weight??

Post by Fishy Dave » Sat Dec 16, 2017 11:26 pm

Franzino wrote:
Sat Dec 16, 2017 11:12 pm
Corner Weight of my Z4M roadster (Total: 1.413kg = no driver / no wheels / with fluids / gas tank 75%)
That's a good weight. Aside from wheels has your Z had any other weight saving? Seats? :)
Corvette C6
Z4 Representative BMWCC GB
Ex Z4M Roadster, the best all round car I have owned.

User avatar
Franzino
Member
Member
Posts: 787
Joined: Wed Jun 09, 2010 2:53 pm

z4m , whats the actual weight??

Post by Franzino » Sat Dec 16, 2017 11:29 pm

Beedub wrote:
Sat Dec 16, 2017 11:25 pm
Nice numbers!
Indeed, but remember that corner weight was with NO wheels
Last edited by Franzino on Sat Dec 16, 2017 11:35 pm, edited 2 times in total.

User avatar
Franzino
Member
Member
Posts: 787
Joined: Wed Jun 09, 2010 2:53 pm

z4m , whats the actual weight??

Post by Franzino » Sat Dec 16, 2017 11:33 pm

Fishy Dave wrote:
Sat Dec 16, 2017 11:26 pm
Franzino wrote:
Sat Dec 16, 2017 11:12 pm
Corner Weight of my Z4M roadster (Total: 1.413kg = no driver / no wheels / with fluids / gas tank 75%)
That's a good weight. Aside from wheels has your Z had any other weight saving? Seats? :)
Nothing I can think of (my car has Bilstein PSS-10 / CSL wheels / AP racing front & Rear)

Online
User avatar
Beedub
Lifer
Lifer
Posts: 9139
Joined: Wed Sep 10, 2008 2:25 pm
Location: Sutton Coldfield

z4m , whats the actual weight??

Post by Beedub » Sat Dec 16, 2017 11:43 pm

Franzino wrote:
Sat Dec 16, 2017 11:29 pm
Beedub wrote:
Sat Dec 16, 2017 11:25 pm
Nice numbers!
Indeed, but remember that corner weight was with NO wheels
arhhh ok so lets add another 40kg??? Still very respectful !

User avatar
Fishy Dave
Member
Member
Posts: 912
Joined: Sun Jul 05, 2015 8:01 pm
Location: Bath, England
Contact:

z4m , whats the actual weight??

Post by Fishy Dave » Sun Dec 17, 2017 12:30 am

Hmm, how about a weigh in at some stage to compare Ms? :)
Corvette C6
Z4 Representative BMWCC GB
Ex Z4M Roadster, the best all round car I have owned.

Online
User avatar
Beedub
Lifer
Lifer
Posts: 9139
Joined: Wed Sep 10, 2008 2:25 pm
Location: Sutton Coldfield

z4m , whats the actual weight??

Post by Beedub » Sun Dec 17, 2017 12:38 am

Fishy Dave wrote:
Sun Dec 17, 2017 12:30 am
Hmm, how about a weigh in at some stage to compare Ms? :)
ill be getting mine done spring and update this thread.....

User avatar
Fishy Dave
Member
Member
Posts: 912
Joined: Sun Jul 05, 2015 8:01 pm
Location: Bath, England
Contact:

z4m , whats the actual weight??

Post by Fishy Dave » Sun Dec 17, 2017 1:02 am

Beedub wrote:
Sat Dec 16, 2017 11:43 pm
Franzino wrote:
Sat Dec 16, 2017 11:29 pm
Beedub wrote:
Sat Dec 16, 2017 11:25 pm
Nice numbers!
Indeed, but remember that corner weight was with NO wheels
arhhh ok so lets add another 40kg??? Still very respectful !
https://www.bimmerforums.com/forum/arch ... 69318.html

Assuming Franzinos car weight was minus wheels and tyres, it could be more of a difference than 40kg if that thread is right? Edit to say 48kg, total of 1461kg, 22 less than mine. Maybe a shade more fuel in mine, some from options maybe? Bit of English mud in the arches and sills? :rofl:
Corvette C6
Z4 Representative BMWCC GB
Ex Z4M Roadster, the best all round car I have owned.

User avatar
GuidoK
Senior Member
Senior Member
Posts: 2567
Joined: Tue Aug 17, 2010 1:37 am

z4m , whats the actual weight??

Post by GuidoK » Sun Dec 17, 2017 8:48 am

Beedub wrote:
Sat Dec 16, 2017 11:43 pm

arhhh ok so lets add another 40kg??? Still very respectful !
Usually just the rim is about 10kg, so 4 wheels will be quite a bit more than 40kg. More like 70-80 I guess.
With extremely light wheels (OZ superleggerra and such) you can save about 4-5kg/corner. But that too comes at a price (they are known to crack on heavy track use)
On tyre weight very little is known, but those also vary (and obviously worn tyres are lighter too, you can notice that when you swap tyres and pick a new one up after you had a worn one in your hands)

At first I thought what a strange way to weigh a car without wheels, but its probably done on a hub mounted system which will give much better access to coilovers for dialing in the balance of the car. Very clever to do it that way.
Z4 3.0i | ESS TS2+ | Quaife ATB LSD | Brembo/BMW performance BBK front/rear | Schrick FI cams | Schmiedmann headers+cats | fully polybushed | Vibra-technics engine mounts | H&R anti rollbars | KW V3 coilovers | Sachs Race Engineering clutch

User avatar
Franzino
Member
Member
Posts: 787
Joined: Wed Jun 09, 2010 2:53 pm

z4m , whats the actual weight??

Post by Franzino » Sun Dec 17, 2017 10:12 am

Fishy Dave wrote:
Sun Dec 17, 2017 1:02 am
Beedub wrote:
Sat Dec 16, 2017 11:43 pm
Franzino wrote:
Sat Dec 16, 2017 11:29 pm


Indeed, but remember that corner weight was with NO wheels
arhhh ok so lets add another 40kg??? Still very respectful !
https://www.bimmerforums.com/forum/arch ... 69318.html

Assuming Franzinos car weight was minus wheels and tyres, it could be more of a difference than 40kg if that thread is right? Edit to say 48kg, total of 1461kg, 22 less than mine. Maybe a shade more fuel in mine, some from options maybe? Bit of English mud in the arches and sills? :rofl:
If you missed this =>

Z4M roadster on a car weight (used for the weight of trucks) => Total: 1.440kg = no driver / with CSL wheels / with fluids / gas tank at least 50%. I also put my M2 on this scale and it was exactly the weight that was stated in the M2 brochure.

Image

User avatar
Franzino
Member
Member
Posts: 787
Joined: Wed Jun 09, 2010 2:53 pm

z4m , whats the actual weight??

Post by Franzino » Sun Dec 17, 2017 10:18 am

GuidoK wrote:
Sun Dec 17, 2017 8:48 am
At first I thought what a strange way to weigh a car without wheels, but its probably done on a hub mounted system which will give much better access to coilovers for dialing in the balance of the car. Very clever to do it that way.
Correct! This is how they did it...it's the best an easiest way for corner weight :D
The guy made a track vs street alignment on my request.....don't know the exact numbers....but this is how it drives @ Spa :wink:


User avatar
Fishy Dave
Member
Member
Posts: 912
Joined: Sun Jul 05, 2015 8:01 pm
Location: Bath, England
Contact:

z4m , whats the actual weight??

Post by Fishy Dave » Sun Dec 17, 2017 12:25 pm

Franzino wrote:
Sun Dec 17, 2017 10:12 am
If you missed this =>
I had, thanks. :thumbsup:
Corvette C6
Z4 Representative BMWCC GB
Ex Z4M Roadster, the best all round car I have owned.

User avatar
Argenta
Member
Member
Posts: 579
Joined: Sat Feb 07, 2015 7:49 pm

z4m , whats the actual weight??

Post by Argenta » Sun Dec 17, 2017 6:36 pm

Haven’t bought scales yet but will in a month.
How much does electric seats add?

User avatar
buzyg
Lifer
Lifer
Posts: 12391
Joined: Fri May 20, 2011 6:11 pm
Location: Cornwall

z4m , whats the actual weight??

Post by buzyg » Sun Dec 17, 2017 8:41 pm

Franzino wrote:
Sun Dec 17, 2017 10:18 am
GuidoK wrote:
Sun Dec 17, 2017 8:48 am
At first I thought what a strange way to weigh a car without wheels, but its probably done on a hub mounted system which will give much better access to coilovers for dialing in the balance of the car. Very clever to do it that way.
Correct! This is how they did it...it's the best an easiest way for corner weight :D
The guy made a track vs street alignment on my request.....don't know the exact numbers....but this is how it drives @ Spa :wink:

Nice video, brought back happy memories of driving my Roadster around there. :thumbsup:
Image

User avatar
RedUn
Member
Member
Posts: 590
Joined: Sat Jun 16, 2012 7:33 pm
Location: Hertfordshire

z4m , whats the actual weight??

Post by RedUn » Tue Jan 16, 2018 1:21 am

Mine came in at 1475kg on the corner weight scales with 3/4 tank and 80kg in the drivers seat, that seems too light though?
IMOLA Z4///MR

Post Reply