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Cleaning up today I decided to weight some of the wheel nuts I have around the place:

D1 Spec (103g for 4, 412g for 16)
DSCN2093 on Flickr

Blox (223g for 4, 892g for 16) these are on the car and now coming off!
DSCN2092 on Flickr

Splined nuts (125g for 4, 500g for 16)
DSCN2094 on Flickr

Hex drive nuts (178g for 4, 712g for 16)
DSCN2096 on Flickr

Inside splined nuts (181g for 4, 724g for 16)
DSCN2095 on Flickr

Hex nut (235g for 4, 940g for 16)
DSCN2091 on Flickr

Hex nut dome (158g for 4, 632g for 16)
DSCN2090 on Flickr

No pics, but

4x 949 alloy, 68g
16x 949 alloy. 290g



Yes, I know the maths are off, but the 68g is without the cap at the end, and some of the others have caps.

I was told to consider a 10 kg reduction in weight the same as adding 3 rwkw this was for
the purposes of the 1/4 Mile ET estimator.

so if 1000 g = .3 of 1 kw

my nasty steel wheel nuts are costing me maybe .1 of a kw and
they come off so quick with the rattle gun I am happy enough with that ;)

At the moment got about 20kg out so far. Weighting it next weekend.

Great post Magpie.

I'm looking to switch to lighter nuts soon.. But the Mrs keeps on putting it off though so I'm stuck with heavy nuts for now

oztrackdays wrote:my nasty steel wheel nuts are costing me maybe .1 of a kw

you have to remember though that the weight you are referring to suffers from spinning inertia or "centrifugal force" and differs from static weight in your vehicle

roket52 wrote:Great post Magpie.

I'm looking to switch to lighter nuts soon.. But the Mrs keeps on putting it off though so I'm stuck with heavy nuts for now

oztrackdays wrote:my nasty steel wheel nuts are costing me maybe .1 of a kw

you have to remember though that the weight you are referring to suffers from spinning inertia or "centrifugal force" and differs from static weight in your vehicle

and it is unsprung weight...says he who runs 17kg a corner

oztrackdays wrote: ... they come off so quick with the rattle gun I am happy enough with that ;)

They ALL come off quick with the rattle gun

Decent alloy nuts will handle a rattle gun, mine have for I don't know how many years now. Rattle them off, but only rattle them up to firm, I finish them with a torque wrench.

Ebay nuts may give different mileage though.



... and to think that I wasted that money on some spare nuts 'just in case'