Tubular rear wishbones, any interest?

[goodall]

Been seem welding my pressed rear wishbones this morning and started thinking would be any interest in tubular ones, would be made to use same bushes so can reuse any poly bushes already invested in and use the stock ball joint and location. Made from regular mild steel and most likely powder coated

[macspring]

Hi,

As a matter of interest, do you think the end result will be heavier or lighter than the original?

Sorry, just re-read the thread, I was thinking of the lower rear wishbone, on an Avant.

Glad to see these type of ideas for our cars.

Kind regards.

[s2driveruk]

i'd be interested if they are:

stronger
lighter
bang on cost

Cheers
David

[goodall]

Might put abit of time into doing a solid works model to get an idea of weight and rigidity. But would imagine would be lighter and proper bracing stiffer. Not sure how much will cost but material wont be very much material in them

Only feeler at the moment see should put more time into it

[Rusty]

Could take the oportunity of looking into offsetting the lower wishbone to gain castor

Will be interested in price, especially if the existing lower BJs are retained.

[goodall]

All the sport replicas I have seen tend to use spherical bearings making them abit useless for day to day use, which main thinking to the stock lower joint

My understanding is that caster on the rear makes no difference as its used to improve camber on steering turn and steering self centring?
However I have thought about this before, if where to use a front ball joint of a car with pressed front wishbones on the back you could shift the pivot forward about 30mm, since the rear joints are cranked back where as fronts are straight.
Which is what lead me to think audi removed all caster from back axle since its basically the front in the back