so i first decided on buying a qev. and i actually bought a 1/2" qev. then having not even received it yet, i was surpassed by the idea of making a 1.5" piston which would yeild much grreater increase in power.
so what im planning is a 1.5" all threaded black steel tee as the main valve body. then, i will cut a piece of 1.5" sch40 galv steel pipe to fit inside the tee as the real piston housing (the reason i use this is because it fits near perfect to the actual diameter of the tee). then, i will take that piece of pipe, and jbweld it to the metal bushing on the pilot side of the tee. this will create an airtight place for the incomming air to push the piston. afterwards, on the barrel side of the tee, i'll have a pvc bushing from 1.5" thread to 1" slip. i'll have this bushing be a modded bushing so i can have the 1" pvc sticking into the tee for where my piston's sealing face will make contact.now thats my housing things, the piston iteslf i will cast a mould using epoxy, and will be casted inside the 1.5" galv pipe so it fits perfectly. then i'll drill a hole through, amke a sealing face and bumper and yeah all the extras. and well im thinking, i am prolly not going to use the qev for piloting the piston because the qev is only rated for 150psi. and instead, i'll use a .5" ball valve. ......so heres my drawing, hopefully you can understand.
give me some feedback, thanks!
EDIT: something weird happened to the pic..just click on it for a clear/fullsize view.
