Quote:
Originally Posted by IceMike
ive read through that and it doesnt really tell me wot i wanna know. wot difference does the hole diamiter in the pistons have??
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Shock Pistons
The assumption is made that if pistons are changed, the viscosity of the oil is also adapted, to give the same static feel. (Same low-speed damping) Smaller Holes Smaller holes mean more 'pack'. Pack means the damping gets very stiff, or almost locks up, over sharp bumps, ruts, or landing off jumps.
Small holes are good for smooth tracks, with big jumps or crummy jumps with harsh landings. Bigger Holes Bigger holes mean less pack. The point at which the damping gets stiff (where the shock 'packs up') occurs a lot later, at higher shock shaft speeds.
Big holes are very good for bumpy tracks. The car is more stable and has more traction in the bumpy sections. It won't be thrown up over sharp bumps, the suspension will soak them up a lot better.
Smaller holes in front The car jumps very nicely, a little more nose-up.
It feels easy to drive. Bigger holes in front Can give a subtle feel of more steering and more consistent front end grip if the track isn't perfectly smooth. Always use the same, or about the same shock pistons front and rear. Big differences in pistons make the car feel inconsistent, and not very smooth.
(cut and paste direct from elvos site... doesn't get much clearer than that)