Quote:
Originally Posted by Helmsman
Hi Zack,
I have no experience of the shocks outside the car but curious about your input on gas/rebound; I thought the OEM shocks are filled with liquid (controlled by the solenoid/valve, no internal spring, hence no rebound should/could occur..?
Thanks
Nik
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Hey Nik,
As far as I know, every shock has a gas charge to prevent the fluid from getting cavitation during exercise. As the gas charge leaves the shock, the fluid is more prone to cavitation which results in the shock being significantly less effective. ( I'm not a suspension engineer, just a guy who changes parts
). I think, technically though, twin tube will work without a gas charge?
I guess there are some shocks, by design, with significantly less gas charge than others, when it comes to twin tube vs mono tube. Mono tube shocks generally, from what little research I have done, are always pressurized with significant pressure. Guy named "Travis Jones" on YouTube uploaded a video named "OHLINS Controlled shock cavitation" that shows this in real time, if you're curious to see it!
Good video I found about this difference is from a channel named "Tinkerer's Adventure" with a video named "The Key Difference No One Talks About | Twin Tube vs Mono Tube Shocks (Is High Pressure Good?)". Seriously informational!
"bounce back" of any shock when compressed is strictly due to gas charge in the shock. Shocks with less gas charge will rebound slower. Likewise, shocks with less "opening" in the piston (aka stiffer rebound) will "bounce back" slower.
Did a lot of learning today to try to confirm what, albeit little, knowledge I had about shock designs lol
Basically, stronger the gas charge, if its a monotube and the rebound is the same, the less fluid cavitation will happen when pushed. (I think..)