Hot Bodies Cyclone
11-18-2008, 03:06 PM
I'm totally stealing that idea with the silicone tubing. I never thought of that!!!
-Korey
-Korey
11-18-2008, 03:15 PM
11-18-2008, 05:43 PM
11-18-2008, 08:56 PM
11-18-2008, 09:37 PM
11-18-2008, 10:06 PM
Norcal 416's will feel my pain
11-19-2008, 01:28 AM
RcPete:
thanks for the explanation - I read it many times and try to understand it in my little mind... maybe I'm missing something (and I prolly am as you seem to be a sensible person
) but I don't understand how damping, which is created by the oil going through the piston holes, can be affected by the membrane "preload"... I guess I'll have to think about it more
Korey:
Billet plates - awesome product, unfortunately the price (esp as I'm living overseas) is a killer for me. looks bloody gorgeous though. Thanks for the link
Now going to the 416 thread
Paul
thanks for the explanation - I read it many times and try to understand it in my little mind... maybe I'm missing something (and I prolly am as you seem to be a sensible person
) but I don't understand how damping, which is created by the oil going through the piston holes, can be affected by the membrane "preload"... I guess I'll have to think about it more Korey:
Billet plates - awesome product, unfortunately the price (esp as I'm living overseas) is a killer for me. looks bloody gorgeous though. Thanks for the link
Now going to the 416 thread
Paul
11-19-2008, 04:52 AM
Tech Adept
Hey
Another question
I dunno if somebode ask that before, but is it ok to use Tamiya 3 hole pistons in HB Cyclone TC shocks?
I measured those Tamiya and HB pistons last night and it look like Tamiya piston was smaller dia that HB one. I use original 2 hole pistons at the moment, but think some options to try
Just make sure if it doesn`t matter..
Another question
I dunno if somebode ask that before, but is it ok to use Tamiya 3 hole pistons in HB Cyclone TC shocks?
I measured those Tamiya and HB pistons last night and it look like Tamiya piston was smaller dia that HB one. I use original 2 hole pistons at the moment, but think some options to try
Just make sure if it doesn`t matter..
11-19-2008, 06:29 AM
Registered User
11-19-2008, 08:01 AM
A little Dilemma...
...
Last edited by RCBuddha; 11-19-2008 at 07:20 PM.
11-19-2008, 08:22 AM
RcPete:
thanks for the explanation - I read it many times and try to understand it in my little mind... maybe I'm missing something (and I prolly am as you seem to be a sensible person ) but I don't understand how damping, which is created by the oil going through the piston holes, can be affected by the membrane "preload"... I guess I'll have to think about it more
thanks for the explanation - I read it many times and try to understand it in my little mind... maybe I'm missing something (and I prolly am as you seem to be a sensible person
) but I don't understand how damping, which is created by the oil going through the piston holes, can be affected by the membrane "preload"... I guess I'll have to think about it more In terms of what the extra bit of preload pressure does:
It slightly increases the oil pressure over top of the piston, which directly affects the damping effect.
If you were to move the shaft in and out at nearly 0 speed you would experience no damping effect at all. When you move the shaft quicker, lets say on the up stroke, fluild dynamics take over and higher pressure is created above the piston and lower pressure below. The effective damping effect is the sum of these pressures above and below the piston.
With the pre-load we create (extra bit of pressure above the piston), it adds to the damping effect on the up-stroke and reduces it on the down stroke.
11-19-2008, 09:01 AM
I think I know what you're getting at, Paul... the bladder doesn't offer that much resistance... and you're right. I think that more of the pre-load pressure comes from compressing the air pocket above the bladder, rather than the bladder itself. I've seen some off-road shocks a while back that actually had a hole in the top cap, which produced very little rebound even with a stiff bladder.
In terms of what the extra bit of preload pressure does:
It slightly increases the oil pressure over top of the piston, which directly affects the damping effect.
If you were to move the shaft in and out at nearly 0 speed you would experience no damping effect at all. When you move the shaft quicker, lets say on the up stroke, fluild dynamics take over and higher pressure is created above the piston and lower pressure below. The effective damping effect is the sum of these pressures above and below the piston.
With the pre-load we create (extra bit of pressure above the piston), it adds to the damping effect on the up-stroke and reduces it on the down stroke.
In terms of what the extra bit of preload pressure does:
It slightly increases the oil pressure over top of the piston, which directly affects the damping effect.
If you were to move the shaft in and out at nearly 0 speed you would experience no damping effect at all. When you move the shaft quicker, lets say on the up stroke, fluild dynamics take over and higher pressure is created above the piston and lower pressure below. The effective damping effect is the sum of these pressures above and below the piston.
With the pre-load we create (extra bit of pressure above the piston), it adds to the damping effect on the up-stroke and reduces it on the down stroke.
ha - yes, I think I get it now. I'm a bit old school so I'm always thinking old shocks with drilled caps... beginning to make sens now.
ok - then rebound actually "works" as long as fluid flow is laminar. When turbulent this is washed away, hence the impact on sweepers rather than quick chicanes... interesting.
now I need to learn how not to hit any boards first.
Thanks for taking the time to explain - sounds like there are still knowledgeable people on this forum after all
Paul
11-19-2008, 09:12 AM
Hey
Another question
I dunno if somebode ask that before, but is it ok to use Tamiya 3 hole pistons in HB Cyclone TC shocks?
I measured those Tamiya and HB pistons last night and it look like Tamiya piston was smaller dia that HB one. I use original 2 hole pistons at the moment, but think some options to try
Just make sure if it doesn`t matter..
Another question
I dunno if somebode ask that before, but is it ok to use Tamiya 3 hole pistons in HB Cyclone TC shocks?
I measured those Tamiya and HB pistons last night and it look like Tamiya piston was smaller dia that HB one. I use original 2 hole pistons at the moment, but think some options to try
Just make sure if it doesn`t matter..
-Korey
11-19-2008, 09:20 AM
11-19-2008, 09:47 AM
Hey
Another question
I dunno if somebode ask that before, but is it ok to use Tamiya 3 hole pistons in HB Cyclone TC shocks?
I measured those Tamiya and HB pistons last night and it look like Tamiya piston was smaller dia that HB one. I use original 2 hole pistons at the moment, but think some options to try
Just make sure if it doesn`t matter..
Another question
I dunno if somebode ask that before, but is it ok to use Tamiya 3 hole pistons in HB Cyclone TC shocks?
I measured those Tamiya and HB pistons last night and it look like Tamiya piston was smaller dia that HB one. I use original 2 hole pistons at the moment, but think some options to try
Just make sure if it doesn`t matter..