Just after a clarification on the differences between these two setups. The Lotus Sport kit is supplied with 325/425 springs and is supposed to be valved to suit the Exige with this setup, although the recommended settings are all towards the harder end of the range, and for some circuits you end up runnning full stiff.
Anyone know the ID of the springs used on the Lotus Sport kit, and the lengths of the standard springs?
I don’t know much about the 46mm kit. What spring rates are they normally supplied with, and has the valving been set accordingly?. Are they normally run in the middle of their adjustment range? Do they run a different ID for the springs, and are the bodies actually different, or is it just the valving?
Alright mate
can problably tell you a bit about the 46mm kit since i did run them for just over a year and developed a decent set-up for them.
First of all Plans can supply with different spring/valaving depending on use.
My car was going to get power in the near future when i fitted them and I think I indicated a 50/50 spit between track and road.
I started with spring rates of 375/425 and went to 425/500. I had isses with my LSD being quite agressive so tended to push the car. Thats when I changed the springs and ran 205 fronts (plus wider rears)
I found that I never ran out of adjustment with either of the spring rates.
I would be quite surprised if you did run out of adjustment on a specific track unless you were attempting to get the dampers to do the springs job (I would not be surprised with such soft springs!)
The 46mms have higher flow rates (the volume moved is up 75% if I remeber correctly) than the standard 36mm. Instead of being bike sourced they come from the GT range and are a much meater damper. I found them very good not sure what could be achieved with the 36mm kit but sounds like the would require a re-valve and some stiffer springs (think there is a cup race set sold with decent spring rates)
I also found I could get a half decent ride even with the stiffer springs by backing off the dampers.
Thanks Jamie, so what does the 46mm/36mm refer to. Is this the diameter of the valving, or the body of the remote reservour? Externally the main damper bodies look similar.
The 36/46 refers to the width of the piston (not the right word but near enough) within the damper and therefor the volume required to be moved for the damper to compress. Valving is very different.