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Old 07-19-2009, 11:02 PM   #1
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Default losi shock cap mod

what are the thoughts on running the shock cap mod without th event hole and only running the foam under the bladder any thoughts and views experience with it
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Old 07-21-2009, 02:58 PM   #2
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what are the thoughts on running the shock cap mod without th event hole and only running the foam under the bladder any thoughts and views experience with it

ooopppsss meant the vent hole
and what do u use under the bladders
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Old 07-21-2009, 04:27 PM   #3
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the reason for the vent is to have the heat and pressure that get trapped under the bladder to release and create a stable dampening enviroment. The foam is to support the bladder now that you vented it. I woud say try it and report to us that have done the mod are curious about it.I asked about this a long time ago I just asked Billy Fischer and he got me all hooked up with the foams I did the mod and I never looked back. He useda purple compund on road tire
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Old 07-21-2009, 06:03 PM   #4
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Default hey

and that was cut to what size the foam did it cover the vent hole








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the reason for the vent is to have the heat and pressure that get trapped under the bladder to release and create a stable dampening enviroment. The foam is to support the bladder now that you vented it. I woud say try it and report to us that have done the mod are curious about it.I asked about this a long time ago I just asked Billy Fischer and he got me all hooked up with the foams I did the mod and I never looked back. He useda purple compund on road tire
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Old 07-22-2009, 05:09 AM   #5
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Default Small area

That is such a minutely small area you are dealing with, I don't see how you could see any kind of difference at all whether you are venting to outside atmosphere or closed off , IMO.
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Old 07-22-2009, 05:18 AM   #6
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That is such a minutely small area you are dealing with, I don't see how you could see any kind of difference at all whether you are venting to outside atmosphere or closed off , IMO.

so u have tryed the mod with success mate without the vent at what track conditions
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Old 07-22-2009, 06:38 AM   #7
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Default No I haven't

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so u have tryed the mod with success mate without the vent at what track conditions
I am just trying to see how it could make a difference. I am not trying to shoot holes in the theory, I am just looking at it in a "what difference could it make" point of view. If it is a signifcant improvement then it may be something I couls do. Doesnt sound expensive or life changing.
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Old 07-22-2009, 03:36 PM   #8
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I am just trying to see how it could make a difference. I am not trying to shoot holes in the theory, I am just looking at it in a "what difference could it make" point of view. If it is a signifcant improvement then it may be something I couls do. Doesnt sound expensive or life changing.
wasnt meant harsh elkman i was asking as it sounded like u had an experience with it no offence mate
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Old 07-23-2009, 09:40 AM   #9
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Default None taken

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no offence mate
I am easy going
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Old 07-23-2009, 05:12 PM   #10
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That is such a minutely small area you are dealing with, I don't see how you could see any kind of difference at all whether you are venting to outside atmosphere or closed off , IMO.
All that is going on is, the air that is trapped behind the bladder is never consistent when you build the shock. It changes based on how much you have bled the shock. When the shaft starts to compress, when you hit a bump, pressure starts to push the bladder upwards. The air trapped in the cap starts to compress. If the amount of air is different in the 2 front or rear shocks, the shock that has the higher pressure will slow down faster than the other. Did you ever see a car or truck tilt to one side going over an otherwise even jump. If you vent the cap, you will more than likely have 2 even shocks in the compression stroke. This is the way full size racing shocks work. They are vented and then they have valves to adjust the speed the pressure is released and that gives a further tuning option. The vent holes allow you to build the shock easier also. I fill mine to 1mm below the shock body, drop on the bladder and screw down the cap. They rebound to about half way 97% of the time. I get the proper amount of pack(to slow the shock down progressively) That allows me to run a little softer with out bottoming the chassis on big jumps. The bad thing is, bladders have to be changed as soon as they get a dimple in them and on some tracks that could be 2 to 3 race weekends. I have not had any issues with dirt getting in and I can feel more responsiveness when the the truck is pushed to it's limits.
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