Quote:
Originally Posted by Orb
No problem. Just to let you know I put theory (load transfer calculation) into practice as well over the last few months. I am having a slightly used spring sale soon. Avoid doing your suspension twice and get something good the first time that has some solid engineering behind it...Moton or JRZ with Hypercoil springs comes to mind.
Orb
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And when you think that Orb ended up with KW Clubsport coilovers (with custom spring rates)
http://www.e90post.com/forums/showthread.php?t=257963
Edit: After more research, it seems that the aftermarket coilover manufacturers have different spring rate ratios than BMW because they simply tune the car for different purposes, with different suspension frequencies:
Here is how to calculate the "natural" suspension frequency at home, with a stopwatch (it's patented, so it must be good
- however the shocks must be removed)
http://www.smithees-racetech.com.au/...cefactors.html
Here is how to calculate other things like spring rates, etc. based on some car measurements (but it's not free, as far as I read):
http://www.smithees-racetech.com.au/...worksheet.html