Component weights

[ND12]

1.6lbs saving. So not having a slice of toast and a big mug of tea before getting in the car would do pretty much the same. Bit cheaper too.

[IanH]

@ND12

slice of toast

What sort of loaf do you have?

[ND12]

I just thought 500ml or so in a big cuppa is about 0.5kg (500g). And a slice of toast with something on it another 200g or so. Guess it’d have to be a doorstop slice on a homemade loaf. Bingo, you got a weight saving the same as the placebo one of a ‘de cat’.

[BlueAgave]

Wheel nut weights

[BlueAgave]

Advanti Storm wheels 6kg, 3kg less than Recaro wheels (9 kg)

[ND12]

Offset sightly (in this case) by the non OEM tyre size. All things being equal, a 215/45/17 tyre of the same tyre (PS4) will be heavier than a 205/45/17 one.

Edit: I do like those wheels actually. Very nice looking. However, I’d go OEM, with OEM center caps.

[BlueAgave]

It depends on the tyre, if you look at the list above the 215 tyre is lighter than the 205!!

[ND12]

So a 215/45/17 PS4, say, ‘could’ be lighter than a 205/45/17 PS4?

[BlueAgave]

Actually they are virtually the same weight

[ND12]

Virtually as in not equal?

[DirtyHabit]

difference of a couple slices of bread… if you want to be picky

(lololol )

[BlueAgave]

Well quite frankly I couldn’t give a flying fig leaf if 205s weighed less as I’d never fit them. Replaced the crappy Bridgestones after buying the car in Jul ‘16 with 215s grippier Michelin’s as they are a better fit for a 7” rim, sitting right in the middle of the fitment range. 215’s provide better rim protection (but that does depend on the make), makes the speedo a bit more accurate and a bit better on the bumps and a bit cheaper.

[ND12]

Which of course is a valid argument. However, I merely stated, after you compared the weight of your non-OEM alloys to the Sport Recaro alloys, that one really should consider the weight of a tyre too, to form a more complete picture, as, after all, it’s unlikely one would drive around with bare alloys with no tyres on them.
Your arguments to why you chose 215 as opposed to 205, and why you replaced the excellent OEM Brisgestones with alternative tyres is of course again a valid viewpoint, but another issue.

[IanH]

Posts on component weights split to separate thread as detracting from OP’s build thread.

[UKPenfold]

Here is me thinking I was a bit weird weighing car components and along comes this thread, I feel validated lol. so, a little while ago after reading threads on the weight of wheels that can vary quite a bit and effect handling etc. I thought, i wonder what different tyres would weigh. For my sprint/track car I use 3-4 sets of NC1 sport OE wheels 7.7KG bare. (I know I could get lighter wheels but when running 3-4 sets for a season spending big on wheels would hurt my Yorkshire spending ways) focusing on 3 tyres , Toyo Proxes R888R for general Track day use, Yokohama ADVAN A052 for sprinting and Uniroyal Rainsport 5 for when a canoe may be needed. All Tyres are the same size 215/45/17 and mounted to the same wheel spec NC1 sport OE 7.7KG bare
Complete wheel and tyre fitted balanced etc.
Toyo Proxes R888R 19.21Kg
Yokohama ADVAN A052 17.26KG
Uniroyal Rainsport 5 17.04KG

So, tyre weights
Toyo Proxes R888R 11.51KG
Yokohama ADVAN A052 9.56KG
Uniroyal Rainsport 5 9.34KG

To be clear I have not chosen tyres for their weight but found it surprising that they vary so much.

[DirtyHabit]

from my build thread if of interest.

for tyres, theres a youtube channel which doe tyres so wel. from snow, track, cross, etc. and theres plenty of videos where they are weighed, and the difference in performance is measured. well worth a watch!! (sooo many vids)).

very educational too as shows differences in tyre type in hot, rain, snow etc. channel is just ‘tyrereviews’

[Art_Tidesco]

@UKPenfold

So, tyre weights
Toyo Proxes R888R 11.51KG
Yokohama ADVAN A052 9.56KG
Uniroyal Rainsport 5 9.34KG

Intresting that the ‘canoe’ tyre is the lightest

For what it’s worth I save 1.5 lbs per wheel by running my ‘04 - ‘05 alloys in favour of my ‘01 - ‘03 5 spokes, some of the weight saved may will be lost by running both types powder coated, no idea what the diffeerence in weight is between the Goodyear Assymetric on the older wheels and and PS3 on the newer wheels.

Useful table of OEM NA - NB wheel weights here :- https://www.miata.net/faq/wheel_weights.html

[Jacob_Rees]

A track tyre is usually gonna be heavier than a road/rain tyre because the rain tyre has less rubber and more grooves. A slick tyre will have no grooves so more rubber (heavier)

[Mad_McAdder]

Very good point….. for a moment I thought I had stumbled onto the the Formula One for geeks forum.