I kept trying to think why Pat looked so familiar! Pat = Duncan Doppleganger!
Somebody have their email? I want to thank them for such a great night.
Loads of good info:
* No "recipe" to great suspension setup
* Good suspension is about balance - to the car setup, tyre setup and duty (e.g. street, track, skidpan, strip, drift, etc)
* More <> Better - often spring rates are too stiff in straight aftermarket packages
* Balance is the key to quick - NOT flatter. Lots of guys set up for a "Flat" car not realising that weight transfer (e.g. some roll) is important to getting more grip
* It was amazing to see how 8mm-10mm of squat caused toe and camber to really move. You can really imaging then how much toe in/out changes dynamically as you go around a track.
* Interesting the effects of good aero on the suspension set-up. Those time attack cars and F1 can run less camber but still maintain even tyre contact because the aero is adding additional down force "weight" increasing grip.
Upgrades:
* Best first upgrade is a poly bush (hehe I said bush) - on 10 yr old cars stock rubber ones will just be worn out. Unless a full track car, you want a poly instead of aluminium to soak a little vibration and not transfer too much of that into the chassis from normal crappy nsw roads
* Coil overs (dampening), spring rates and tyres need to be balanced in order to work well, e.g. Stiff sidewall tyres can take stiffer springs and harder dampening, if you are just going to run road tyres then you should use looser suspension & springs otherwise your tyres are taking too much of the shock/dampening work that adversly affects their work on traction
* Sway bars are just used to control body roll to affect and maximise weight transfer (note that I didn't say body roll - it's about weight transfer/Grip relationship)
Great practical advice and enough theory explaination to help us out in finding a good balanced upgrade approach.