Front uprights....A question !!

[tozerman]

I am still researching my planned front brake upgrade, and I need to know if the front uprights are based on the escort or the sierra ? I thought they were both the same but aparently they're not!
cheers.....Tony..

[Barkychoc]

They are Sierra.

[tozerman]

Cheers Chris..

[CTE]

Whilst on the question of front uprights....does anyone know if you can or could get lightweight uprights?

[Barkychoc]

The only sierra bit is the hub - TVR made a bit to fit in the top where the sierra mcpherson strut went - then the saab balljoint fits into that which attaches to the upper wishbone.

The bottom wishbone has the fiat/lada balljoint in it which then attaches to the bottom of the sierra hub.

So I guess the answer is...... No.

[GreenV8S]

Barkychoc said:

The only sierra bit is the hub

I assume you meant to say the whole hub, upright and brakes, everything except the bottom ball joint and top balljoint + strut adapter.

[Jed-S]

Raceleda used to do a Sierra upright but it isn't listed on the MNR website - who took over (or something like that) the RaceLeda business. The Cortina upright is listed though.

Weight savings of 2.6Kg per upright and hub are quoted here:
http://www.racedandrallied.com/detail.php?show_sti...

Not sure if it was designed to be used on 1 tonne cars or for the 500Kg plus se7en style of car.


Jed

[GreenV8S]

I can't help thinking that highly stressed suspension components are not the right place to be trying to save weight. Remember all those Tuscan challenge cars that lost wheels and the mutterings of lightened uprights hurriedly swapped back?

[Barkychoc]

GreenV8S said:

I assume you meant to say the whole hub, upright and brakes, everything except the bottom ball joint and top balljoint + strut adapter.

Yes thats what I meant Pete.
I can't help thinking that less weight = less strength surely unless its ally or something and then you must need a fair volume of metal to be equivalent to the steel casting.
Its a personal thing but I quite like my wheels to stay attached to the car.

I can understand the question though cos its one damn heavy lump when it is all assembled.

[CTE]

Thanks for your thoughts everyone.

I know the Sierra uprights/hubs are over engineered for the application (coming from a heavy family saloon car), and could therefore be significantly lighter...however, I agree it is a critical component, and I would not consider swapping it for anything which was unproven. It just frustrates me everytime I look at the uprights.