Having recently watched an interesting video about suspension design by Jim McSorely I have been in contact and got the part numbers for the bits that he uses in his design.

Boggle rightly questioned whether they would be road legal in this country and therefore whether the IVA would be an issue, these are the parts:

http://www.speedwaymotors.com/Adjustable-A-Arms-With-Cross-Shafts,21 17.html




What do you all think?

[Edited on 14/5/10 by Airhead]

[Edited on 14/5/10 by Airhead]

cant see the problem with them myself, what aspect did boggle think was wrong?

Just to add, if you made them yourself im sure you could make a simpler/stronger/lighter design though.

[Edited on 14/5/10 by JoelP]

I think he was just being cautious.

I don't know enough about steering goemetry to fabricate my own and don't really trust my skills on critical bits like the wishbones, steering rack etc.

Speedway Motors supplies parts for dirt modifieds and lower class stock cars based on 70's and 80's Chevrolet front subframes.
These were midsize North American Malibu and similar.
IMHO they are much to large and heavy for a Locost.

That looks like a remarkably floppy arrangement of parts

I have a speedway motors catalogue as well as a few summit books next to the throne.

Top wishbone otherwise it would be one hell of a bending moment on one of the welds ---- still barge pole touch ye not.

Thats not to say you can make wishbone out of floppy bits --- BL Mini lower wishbone or Sierra/Escort track control arms or real Lotus 7 top wisbones.