Various weights (bolts, wheels, spacers etc)

[alexk]

Today I got some pics of various stuff.
I think it's good to know the weights.

To start with, here is the weight of an HR 12mm spacer for the CSL. 401g quite heavy



Here is a BBS bolt (normal length, I would say 2mm longer threads that OEM BMW bolts). 78g - heavy compared to the OEM ones



Here is the OEM BMW bolt. 67g


Here is a longer bolt from Turner Motorsport (+15mm). 77g // lighter than the BBS bolts.




Here is the engine rocker cover. 1027g
No one quotes how heavy are these carbon covers that are being sold everywhere.
As far as I am concerned, the carbon should be lighter to justify the money otherwise it's just pointless to replace it.



Cheeky detail.
The 'gold' 3d-effect BBS wheel caps from the BBS RS-GT are heavier than the carbon look of the BBS CH. 40g vs 33g
So I removed the heavy gold ones and put the carbon look ones in my RS-GTs.





Here is the BBS RS-GT 19 x 8.5J with 245/35/19 Hankook tyres. 20.2kg
I believe they will be lighter with cups



The BBS RS-GT 19 x 10J with 275/30/19 Hankook tyres. 21.7kg



The BBS CH 19 x 8.5J with 235/35/19 Vredestein winter tyres. 21.7kg
Note that these winter tyres are very light, still the RS-GT is 1.5kg lighter with significantly heavier tyres (also 245/35 on the RS-GTs).



The BBS CH 19 x 10J with 265/30/19 Vredestein winter tyres. 23.2kg
Again the winter tyres are light and the RS-GT is 1.5kg lighter with heavier/bigger tyres.

[Pip1968]

Whilst marginally interesting I cannot help that you either have too much time on your hands or are single perhaps divorced or soon to be... . My wife thinks that I am obsessed with my cars but I told her I could have someone on the side instead. She did not follow that arguement .

Anyway I am going to point her to this post on the 'nerdy site' and hope that she sees I am 'normal' after all .

Pip
Ps Anything on wet and dry weights of the car?

[alexk]

Some time ago I weighted my CSL on a scale. Full tank and nothing taken out (I have the mobility kit, fire extinguisher etc) 1420kg .
That is with AP racing front/rear and SS race lightweight backbox.

[Equinox]

Originally Posted by Pip1968

Whilst marginally interesting I cannot help that you either have too much time on your hands or are single perhaps divorced or soon to be... . My wife thinks that I am obsessed with my cars but I told her I could have someone on the side instead. She did not follow that arguement .

Anyway I am going to point her to this post on the 'nerdy site' and hope that she sees I am 'normal' after all .

Pip
Ps Anything on wet and dry weights of the car?

[karbonkid]

I have never gone to the extreme of weighing wheel bolts but certainly interesting.
Although OEM bolts at 67g = 1.34kg per set of 20x, I cant see why some go as far as buying aluminium open ended lugs for wheel studs, substituting safety with a few grams saving only.

I also have plenty of data for various parts which were measured when they were all removed permanently. soon adds up!

[alexk]

I can't agree more Alex. It just doesn't make sense when there are other alternatives to save weight.

I guess you know the Poggipolini titanium bolts (the Gallardo Superleggera has these).
They are nice but there are better things to spend 1200 EUR.

[alexk]

More weights coming.

An Eibach 12mm spacer, 477g

It is 76g heavier than the H&R 12mm spacer !
So if you have to choose between the two of them, buy the H&R ones !!!



Here is an H&R 20mm spacer (with the extra bolts).

Together with the extra bolts 1037g
That's heavy !



Without the bolts 805g




The bolts on their own 231g



Now I need to get the Turner motorsport spacers and weight them.

[karbonkid]

Alex, as I promised recently - below is some of the data I collected whilst I put mine on a diet. Some I have refrained from posting as I cannot confirm an accurate weight and some of which would have not been useful for others to know.


REAR SEATS
Rear Backrest - 6.7kg + 3.8kg = 10.5kg
Rear Cushion/ Hardware - 7kg + 0.7kg = 7.7kg
Rear Headrest - 0.55kg x 2 = 1.1kg
Rear Bolters - 1kg x 2 = 2kg
Rear Matts - 0.35kg x 2 = 0.7kg
Rear Speakers/ Carriers - 0.55kg x 2 = 1.1kg
Rear Seatbelts - 0.85kg x 2 = 1.7kg

TOTAL Saving: 24.8kg (54.7lbs)



BOOT
Triangle/ Rear Trays/ First Aid kit = 2.3kg
Tyre Pump/ Foam Carrier = 3.4kg
Boot Board = 2.2kg
Boot Liner x3 (1.1kg + 0.7kg + 0.7kg) = 2.5kg
Boot Sound Deadener x1 = 3kg
Boots Lights x2 = 0.2kg

TOTAL Saving: 13.6kg (29.98lbs)



BATTERY
OEM Battery - 15.6kg / Braille Lightweight - 7.7kg

TOTAL Saving: 7.9kg (17.4lbs)



SUSPENSION
OEM Suspension – 25.2kg / Nitron – 17.2kg

TOTAL Saving: 8kg (17.64lbs)



EXHAUST
OEM Backbox – 25.4kg/ Supersprint Lightweight Race – 11.5kg

TOTAL Saving: 13.9kg (30.64lbs)

[northernjim]

Brake kit weights Alex? (swissAlex or southernAlex )

[karbonkid]

Originally Posted by northernjim

Brake kit weights Alex? (swissAlex or southernAlex )

Yes, I have OEM CSL Brake weights but removed from the list because I do not have AP Racing to compare.