I'm assuming that your wanting to calculate what piston (size and number of holes) you would need to get the same damping properties as what was commonly ran on the CR (or CR2).
I've already worked it out, along with others who have all come to the same conclusion...
If you ran 3 hole #56 pistons in the old losi shocks... then you run 4 hole #56 pistons in the new big bore shocks.
This should give you the same damping properties as before.
I've gotta be honest I'm really unsure of why people are going to the 5 or 6 hole pistons on the 22 with the big bores, seeing as the cars weigh around the same, they're still 2wd and still have a simular weight distribution front to back (depending on where you put the weight)!!
I'm still running 4 hole pistons based on my theory of having the 'same' shock set up as I used to run on the CR2 and its working great!
Until somebody manages to explain 'why' I should go to 5 or 6 holes in a manner I understand, I'm gonna keep running the kit 4 hole pistons.
That said, I am thinking of trying to find somebody who will machine me some standard 4 hole pistons (not tapered cos I still cant get my head round them!!) with evenly spaced holes cos I'm not overly keen on the kit ones as they appear to be moulded and snapped of a 'tree' which leaves burrs and just dont feel very smooth!
Just my opinion
