powerstroke bypass shock - RC-Monster Forums

maximum · **powerstroke bypass shock -** 12.18.2005, 12:57 PM

quick question- it says the bypass shock utilizes an "innovative twin chamber by-pass sleeve". Is that fancy talk for a 2 hole piston? or is it a double walled chamber? anyway, I think the bypass will be of use if it has at least 70wt oil in it to offer any real dampening on such a heavy truck.:C:

Sylvester · 12.18.2005, 01:13 PM

I think it means it has 2 chambers which hold oil, but you should ask someone like squee who again has these shocks, sorry i could not help you with this question, as i do not have these shocks.

squeeforever · 12.18.2005, 01:32 PM

its a weird design but ill try and explain it. ok, well there is the inner chamber like a regular shock but then there is a outer chamber inbetween the heatsink body (outer wall) and then the inner chamber. the inner and outer are filled completely with fluid and there is holes in the inner wall to allow the fluid to enter and exit the outer chamber. now as the piston goes up it passes the holes and as it goes up there are less holes to make it pregressive. so 60 weight oil is way to much. try like 40 and 50 in the shocks if you have a really heavy truck but for a stock weight truck 30 in the shocks and 40 in the bypass should be close. it just depends on how you like your truck to sit and handle. if you have any doubt on how it works just go to prolines website and find the powerstroke shocks. it has a thing that explains it and has a cutaway that shows how it works.

maximum · 12.18.2005, 01:34 PM

yeah i'll ask him. what i'm really concerned about is that the dampening rate is supposed to INCREASE as the shock compresses but i don't see that at all. it has the same resistance the whole travel.

maximum · 12.18.2005, 01:37 PM

a cut away would help explain things to me. I worked the piston plenty before screwing the cap on so both chambers must be filled. if not that might explain why the dampening dosen't seem to be increasing as the shock is compessed. thanks for the info though.:D

standard_63 · 12.18.2005, 02:02 PM

It may be a speed issue -- out in the world the truck will hit obstacles at different speeds sending the shock thru the wheel at different rates. Big hits and landings force the oil up the shaft at a greater rate, causing more of a jam up as the oi is forced to the outer chamber and smaller holes. On softer hits the shock moves more freely, as with body roll in turns. So just moving the piston back and forth doesn't tell as much once the shocks are run in the truck. I use 30/40 in mine with the MGT stiff springs and it doesn't seem to really bottom out hard at all.

maximum · 12.18.2005, 02:05 PM

yes, the speed at which it is compressed should make a difference. thanks.