Motocross suspension tuning, pressure balancing, flow balance

I should have said mills of oil not mm and when i talk about keeping it simple, just add and subtract shims (not stacks 🤦‍♂️)
Utilize the shim factor to count the shims above the clamp shim.
Start with a 0.10 = 1 then it goes as follows
.15 = 3.38 (0.10s)
.20 = 8 (0.10s)
.25 = 15.8 (0.10s)
.30 = 27 (0.10s)
If you want to soften a stack to increase flow relative to pressure drop, reduce the overall shim count. Conversely to decrease flow relative to pressure add shims.
The clamp OD can be useful too. Larger OD equals stiffer.
A "stiff" adjuster stack or base valve relative to the main will delay the force build up, and make shock operate at higher internal pressures to net the same force as a well balanced damper. It will also produce significant hysteresis.
Utilize the main piston/ mid valve to produce the bulk of the force via a decent pressure drop as it sees the largest portion of oil flow.
Small consecutive bumps AREN'T low speed events but are actually high frequency. This requires a fast response damper which is best achieved minimizing the dampers internal pressure in particular the rebound chamber.
Happy riding

[@vinceseyb2640]

I should have said mills of oil not mm and when i talk about keeping it simple, just add and subtract shims (not stacks 🤦‍♂️) Utilize the shim factor to count the shims above the clamp shim. Start with a 0.10 = 1 then it goes as follows .15 = 3.38 (0.10s) .20 = 8 (0.10s) .25 = 15.8 (0.10s) .30 = 27 (0.10s) If you want to soften a stack to increase flow relative to pressure drop, reduce the overall shim count. Conversely to decrease flow relative to pressure add shims. The clamp OD can be useful too. Larger OD equals stiffer. A "stiff" adjuster stack or base valve relative to the main will delay the force build up, and make shock operate at higher internal pressures to net the same force as a well balanced damper. It will also produce significant hysteresis. Utilize the main piston/ mid valve to produce the bulk of the force via a decent pressure drop as it sees the largest portion of oil flow. Small consecutive bumps AREN'T low speed events but are actually high frequency. This requires a fast response damper which is best achieved minimizing the dampers internal pressure in particular the rebound chamber. Happy riding

[@vinceseyb2640]

arxiv.org/abs/2208.06343

[@vinceseyb2640]

www.valvinglogic.com/index.php

[@vinceseyb2640]

www.sae.org/publications/technical-papers/content/2009-01-0223/