z4m , whats the actual weight??
- Thread starter Beedub
- Start date
Heavy buggers for the size. The engine is nearly 60kg heavier than the N52, iirc. I’ve clawed half of that back, as others have, with CSLs and Al front calipers, but it’s difficult to know where else you can shed weight from the front of the car without spending thousands.
Do you know the weight of the KWs vs the stock items? Wouldn’t be surprised if they were the same weight or heavier.
BMWZ4MC said:
Do you know the weight of the KWs vs the stock items? Wouldn’t be surprised if they were the same weight or heavier.
i actually don't think this too too bad at all, but i agree for the size quite heavy , its really possible yo get these LOW 1400s....
The biggest and easy weigh to drop is the seats, your talking 30 kg EACH, a setup thats totals 15kg with the hardware is where some really solid gains can be made!
The biggest and easy weigh to drop is the seats, your talking 30 kg EACH, a setup thats totals 15kg with the hardware is where some really solid gains can be made!
exdos said:
You're right, I have the rear only which is solid. I couldn't remember the comparable weight when I fitted it.
http://eibach.com/us/i-1937-anti-roll-kit-front-and-rear-sway-bars.html
Beedub said:
At a weight of about 700g per litre it would have to be on very low fuel to get to 1450, but not far off.
Beedub said:
Corner Weight of my Z4M roadster => Total: 1.413kg = no driver / no wheels / with fluids / gas tank 75%
Z4M roadster on a car weight (used for the weight of trucks) => Total: 1.440kg = no driver / CSL wheels / with fluids / gas tank: ?
I also put my M2 on this scale and it was exactly the weight that was stated in the M2 brochure. Impressive scale!
Franzino said:
That's a good weight. Aside from wheels has your Z had any other weight saving? Seats?
Hmm, how about a weigh in at some stage to compare Ms?
Beedub said:
https://www.bimmerforums.com/forum/archive/index.php/t-1169318.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?
Usually just the rim is about 10kg, so 4 wheels will be quite a bit more than 40kg. More like 70-80 I guess.Beedub said:
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.
Fishy Dave said:Beedub said:
https://www.bimmerforums.com/forum/archive/index.php/t-1169318.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?
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.
