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Post by snake13 on Jan 8, 2006 19:05:56 GMT -5
I was wondering if it was possible to ditch the FVA and control the velocity of the a-5 using a combination of a secondary regulator and a spring kit. My thinking was to get a good ballpark velocity with the spring, then use the regulator to fine tune the setup.
Basicly what I had in mind was I wanted to try to lower the operating pressure of the A-5 (not LPK low, but like 600-650ish), I figured with a lower pressure, a sans FVA powertube (like the JCS gold), and a palmer stabilizer I could get some really good consistency with the A-5.
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deluxestogie
Corporal
He who can destroy a thing controls that thing.
Posts: 66
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Post by deluxestogie on Jan 8, 2006 22:41:41 GMT -5
Although my A-5 w/ Gold power tube, Maddman spring and Palmer stab has an RVA (JCS Combat stock with RVA), I essentially do exactly what you are describing. It's been many months since I touched the RVA. I run between 550 and 650 psi, depending on whether I'm using a straight barrel or Flatline. I adjust velocity at the chrono station using the Stabilizer.
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Post by snake13 on Jan 9, 2006 8:39:25 GMT -5
did you make any other mods to get the operational pressure down? so far what I was thinking off was a JCS gold tube, a QEV kit, and perhaps an aftermarket bolt.
I really don't want to mess with polishing the internals, but i've been entertaining the idea if its neccesary to get the operating pressure down. My goal was at least 650, that way to leave a 200psi difference between the preset reg and the palmers to eliminate any shootdown issues from starving the second reg.
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deluxestogie
Corporal
He who can destroy a thing controls that thing.
Posts: 66
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Post by deluxestogie on Jan 9, 2006 14:24:15 GMT -5
I would recommend polishing internals ahead of just about any upgrade. It amplifies the benefit of springs, regs and more subtle changes, such as power tube and front bolt. Spend 1 hour of your life with a can of NeverDull. It's also a nearly free upgrade.
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Post by snake13 on Jan 9, 2006 15:36:15 GMT -5
Well my reasoning isn't laziness, its fear of screwing up my new A-5. Frankly taking abrasive objects to the inside of this beauty gives me the willies, and I've heard that polishing the internals can lead to issueswith internal parts wearing down really fast.
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Post by Medina on Jan 11, 2006 20:04:43 GMT -5
I think I used 500 grit sandpaper. It was very light and it took me a good hour and a half to polish the insides. On a5og people recommended 600 grit but I, much like you, wanted to be careful.
Just go to Home Depot and feel the different grades of sandpaper and get the lightest one. Be forewarned though, the lighter you go the longer it will take.
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Post by spartan117 on Jan 12, 2006 5:21:51 GMT -5
If you use paint-thinner it takes 10 Minutes...
In most cases you also don´t need to polish the internals, then.
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Post by Millslane on Jan 21, 2006 12:49:10 GMT -5
yes, you don't have to use abrasive products like sand paper or steel wool of any grit count.
using a paint thinnger/stripper/remover will work just fine. if you don't mind the fumes, just make sure are working in a well vented area and tape or plug up the holes in your marker.
i used a Aresol can of automotive paint remover i got at walmart and it worked great.
if you are worried about taking off too much material and ruining the inside of the marker, then go with this method, Nevel Dull, as mentioned before, works the same way. they break down the paint, not sand it off. this method can never ruin the receiver halves. just wash it out very well before you put the internals back in.
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