How wide is too wide for a vehicle?

[dzine]

I am starting the design of a custom vehicle project, and have been looking into the suspension geometry.

I have the ability to make the track as wide as I want to (within reason), for the highest performance possible.
The vehicle is intended for 80% track, 20% street. I expect the COG to be in the vicinity of 3-400mm.

Does anyone have any thoughts on this? The standard Impreza track with is about ~1650mm, but as I am need to make new half shafts and suspension arms, how wide is too wide, ignoring all things like extra sprung weight etc. I am thinking I would like around 1900-2000mm.

thanks for the advice

Hayden

 

[NormPeterson]

It's certainly a diminishing returns kind of thing. At some point after you can't lower the CG any further any benefits from further reduction in lateral load transfer via track width tinkering would have to be balanced against increases in both weight and aero. IIRC, the wide-body 911 was more a US version, with the narrower version having a superior top speed and preferred for that reason by some of the European tuners.


Norm