GTA
All Springer/NP/PCP Air Gun Discussion General => PCP/CO2/HPA Air Gun Gates "The Darkside" => Topic started by: YEMX on August 02, 2014, 11:02:20 AM
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I've been talking to Motorhead and Milo74 via PM, but I thought I'd post this on the forum so I could get more input, and possibly help others who might be trying to go the same route. I don't think I'm wording the questions right, and more heads are better than mine- I don't want to frustrate them. I have two projects I'm working on and need some help.
Prod90: I want to put a Prod into an airsoft P90, and keep it a .22, but there's a few questions. I'd like to reduce power to 12 fpe, and reg it with one of Milo74's regs. I'm not using a gauge and need to drill a vent hole (I've been talking to Milo74 and I definitely need to drill a vent hole)- One way is to just use a factory main tube w/o a gauge (this would be much cheaper)- would that work to vent it? I'm still using a gauge block, so it should be sealed fine (right?)... If not, the other route I would take is to have a new main tube made w/o a gauge hole, and drill the needed vent hole. But here's the big question for both routes: Since the Prod is going to be inside the P90 stock, how much area around the vent hole do I need to properly vent the reg? Would I need to have the hole in the stock drilled all the way through the stock, or would a 1" (or more?) depth hole from the vent hole in the main tube be alright? Did I word that right? Also, thoughts on a LW hammer? I'm not doing any valve mods, as I want to detune it- I am just going with a smaller TP size (.068") to restrict the air flow. Thoughts?
Discovery FT rig: This one is a .177 build and I'm using a Mrod trigger kit from Norm, and the kit uses a modified Prod hammer, w/the stroke adjuster. Thoughts about what psi to have the reg set to? I was thinking maybe have the reg set to 1500 psi? Should it be more? Less? Again, no mods to the valve, just a smaller TP (.070"). Also, as this main tube I'm using won't have a gauge hole, as it's a custom one from Don Cothran. I will also need to drill a vent hole- I'm drilling it on top, since there will be more than enough area to vent to (I'm using a BNM breech, no shroud). Do I still need to use the gauge block as a spacer between the reg and the valve face? I want to make sure before drilling any holes in my new main tube!! Thoughts on what hammer spring to use? Would a stock Disco spring work for this application? Maybe a 22xx spring? I'm not sure. I'm also kicking around the idea of using a light weight hammer from Motorhead as well. Thoughts?