johnnymolloy wrote:thanks for the input guys
i am spending money, quite a bit so thats why im on here making sure im getting what i pay for i think ill have to have a look a them books
I can only echo the advice of Luke. A little bit of knowledge has the potential to cause massive confusion. Try to get to know the company's experience instead. The simplest question to ask is "have you done a clean sheet project like this before". If their answer is very short - I'd start to worry. If they can tell you a list of similar projects and how they went - I'd feel somewhat reassured.
Basically, there is a BIG difference between
designing a suspension and
constructing a suspension. One requires a welder and a grinder. The other requires some smarts and a calculator. If you want to have a decent suspension, you need to be working with a company with some experience in both fields.
I'd be asking your shop to give you a set of target kinematic curves. E.g. bumpsteer, camber gain, roll centre height, anti-dive, anti-lift as well as your steering geometry of caster angle, caster trail, scrub radius and KPI. Even if its scribbled on a napkin - it at least shows that they will put some thought into the kinematics.
On the other hand, if they don't have, can't give or don't want to give you this info (whats a scrub radius?) - I'd say you are in deep deep shìt and I would bail out now...
