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Old 06-19-2011, 02:56 AM   #12
blue2000s
Porscheectomy
 
Join Date: Mar 2006
Location: Seattle Area
Posts: 3,011
Quote:
Originally Posted by brp987
'01 S on Eibachs before ROW M030 install.

ground to fender: front: 24 3/4 inch, rear: 25 inch

coil wire diameter at bottom:
'01S (stock): 0.514 inch; Eibach: 0.514 inch; ROW M030: 0.545

Apparently, spring rate varies as 4th power of wire diameter, which according to my math makes the row M030 26% stiffer than what was stock on my car.

I'll try to post pics, but this is my first try so it probably won't work.



Spring rate also depends on spring pitch (coils per inch) when unloaded, spring (coil) diameter, and material, of which there are many. So there are missing puzzle pieces.

Last edited by blue2000s; 06-19-2011 at 05:38 AM.
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