Spring Specs?

Where can I get info on the Exige’s spring specs? I am wanting to uprate them for slicks and two-way dampers, and I can’t get any info on inside or outside diameter, thickness, length, etc.Couldn’t find anything in the service notes either.

Answer my own question:for the Exige with Road Spring & Damper upgrade (A111C0138S):Internal Diameter of the springs is 2.5" and they are 5" long. (from Russell Gibbons @Lotus Performance Center)Compression (from Elise Manual section XA page 18):Front 25/40N/mm (dual rate) - 142.705/228.328/lbs/in.Rear: 50N/mm - 285.41lbs/in