4 replies to this topic

[Paolo]

I'm doing some work concerning race cars polar moments of inertia.
Although I calculated some ballpark figures, I would be extremely glad to know real data regarding polar moments of F1 cars (any year will do, not necessarily modern ones; 1970-90 are my favourites ).

Also, I' m looking for the weights of components.

I already know a modern 10 cyl weights around 90 Kg, and I guess a 1980 Cosworth was around 120.
I seem to understand these weights are without cooling liquids and some of the ancillaries.

A bare carbon monocoque weights around 20 Kg now, while Brunner's 1983 ATS (the first one to take on bodywork functions too) , was around 40 Kg.

Fuel loads can be anything from 220 liters down...
The biped inside is beetween 60-80 kg...

But , hey, how much do the wheels weight ?
And the suspensions ?
And the radiators ?

Etc . ?

Any help will be appreciated ; I am ready to share other data I might get.

[Paolo]

Just to get thisa database going...

Renault R23 monocoque (complete, I suppose) : 60 Kg
Renault V6 Turbo engine (probably including heath exchangers) : 179 Kg ( both from Sportnetwork.net)


Toleman TG184 gearbox weight : 50 Kg
Toleman TG184 monocoque weight (probably bare) : 29.5Kg
(both from Atlasf1 Faq)

[wegmann]

The polar moment of a modern F1 car is in the ballpark of 600 kgm^2. Older cars will be higher. In fact, before downforce, they would sometimes intentionally keep the polar moment of inertia high to make the car more controllable.

[Greg Locock]

I was told the wheels are 3.5 kg each. Don't know about tyres.

Perhaps the best way to do this is to put a complete shopping list together in a spreadsheet, then you can keep on adding bits until you get the weight right (maybe that's what you are doing already).

Wegmann, interesting comment on the PMI, agrees with my prejudices!

[J. Edlund]

1997 Ferrari F1 experimantal lightweight chassi; 31,6 kg.
BMW M12/13 engine (F1 turbo); approx 170 kg.