Quote:
Originally Posted by intinerious
dunno what you mean by applying oil in gas...
I run these type of green gas exclusively because I've been able to source a whole lot of them for free. |
Ah, right. I keep forgetting you are in HK. That type of gas should have lube in it.
Quote:
Originally Posted by intinerious
The thing about the 'better' air seal was about the SD floating valve being 'thicker' than the stock one, so when the gas pushes the valve close inside the SD nozzle it gets stuck with the stock spring. Addition of a stiffer valve spring will allow enough potential energy to be stored by the spring when its compressed (when the valve is closed) to exceed the frictional forces between the oversized valve and the nozzle, so the floating valve would still work. The 'better' air seal theory => thicker valve against the nozzle, COMPLETE air seal when the valve is shut and all of the remaining gas that is used for the blow back action WILL be for the blow back action and no gas could leak through the nozzle end due to any gaps between a closed STOCK valve and the SD nozzle. I'm purely speculating the tolerances of the stock valve and the SD nozzle diameter though, the stock valve may already completely block all the gases from escaping the nozzle chamber once its shut. It's really hard for me to explain it via words, but I hope you understand what I'm getting at. If not, I'll try to explain it again when I have the time to think and draft out my post (I'm about to sleep).
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Okay, I understand what you are saying now. But, gotta look at it this way... if even Marui spec floating valve can fit in to the nozzle without falling out, then would it not be a given that it's providing a seal? The lip on it holds it in place. The SD's problem is actually that the lip is too SMALL, and as a result, it slips inside the tunnel through the exit port of the nozzle.
Quote:
Originally Posted by intinerious
I think the thoery behind a high flow valve working with the stiffer nozzle spring is that the 'impluse' of gas rushing into the nozzle chamber (i.e. volume per second) is greater than a stock valve? Hence the high flow shuts the valve quicker than with a stock valve, and you won't get excess gas coming out of the barrel if the impluse is low? (i.e. when the BB is already out of the barrel but gas is still being diverted to the barrel due to the stiffer valve spring resisting the shutting of the valve for the gas to redirect for the blowback action).
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I agree with this theory and have always believed it as well. I just haven't gotten it to work successfully yet, but have also not always resorted to testing high flow valves to see if it works when I encounter this problem. I see it maybe 50% of the time.