Pikes Peek type suspension.

[Burnzee]

Hi Folks – first timer here.
Need a little help with some suspension design, vehicle is in the design stage and goes like this: 4WD, Double A arm front and rear, coil over shocks – inboard thru push rod/rocker, 250+Hp, 320Kg (including driver), vehicle will be about a little larger than a super kart, about the size of the Light Car Company ROCKET. This vehicle is to be raced here in New Zealand similar to the Pikes Peek race and on tar track. I Have a good understanding of caster, camber, toe etc but not so good when it comes to actual suspension design i.e. roll centre, length of arms with relation to stability etc. Can I be helped?

Regards
Carl

 

[GregLocock]

Make the arms as long as you can while preserving good geometry.

Make the vertical suspension travel as long as you can, particularly into jounce, but also in rebound. This will probably be limited by the length of the arms, and your driveshaft joints.

Copy a car that already works well.

Roll centre heights - you might as well start at 50 for the front and 100 at the rear. Everybody else does.

With such a light car you might well be able to get away without roll bars, especially at the back.

Sounds like you need to buy Milliken's Race Car Vehicle Dynamics



Cheers

Greg Locock