Posted by: Dale "Head_Hunters" DuPont on February 05, 2003 at 12:51:14

The goal is NOT shot efficiency. The goal is lowest operating pressure to reduce noise generation... Why won't a LP valve and spring set permit operating pressures below 300 psi in any spring configuration....? : Did you try using a medium valve spring and a light hammer spring and then sweetspotting your reg? Or, other combinations where the hammer spring is always lighter than the valve spring and then sweetspotting the reg. : Rick : : Well it is winter and one just has to tinker and tweak.. : : I decided to put my 14" Dye on and change the valve and hammer spring to see if I could get my operating pressure below 300 psi which people seem to do all the time.... : : I supposedly bought a LP valve over a year ago. Been working fine with that 18" gas hog zniper barrel but at 300 psi. : : I HAD the lightest spring for the valve. and the Medium spring for the hammer. Went to the heavy spring behind the hammer and added a volumizer. : : The result was unchanged. It took 300 psi to get 300 fps out of the 14" Dye. : : Seems like the increased valve duration and volume behind the valve would/should have an effect over the original set up... : : Switching back to the medium hammer spring also resulted in NO change of velocity. It should have been different with no other changes being made. : : Now wouldn't that result suggest the WITH additional volume behind the valve AND with increased valve duration open time, that there STILL isn'nt sufficient RATE of Flow through the valve. : : If more air went through the valve from the increased open duration AND volume, then it was too late and the ball, long gone out the barrel.. : : The VALVE seems to be the flow restriction. You know like the stock valve that we have to replace to get below 300 psi? : : I think I might just not have a LP valve in it afterall......... : : Any other explainations? Things to try? A way to tell for sure other than pulling out my old stock valve and seeing how simular it is to my NEW LP valve? What do I look for?

Follow Ups: Re: Sweetspotting is for Air Efficiency Vampyr 21:30:50 02/05/03 (0) Post a Followup Show your name as: DefaultRealnameBothNickname E-Mail address (eg: joeschmoe@aol.com): Show your e-mail address? DefaultYesNo Your Password: Don't have a password? CLICK HERE - Forgot your password? CLICK HERE Subject: Subject:Message: : : The goal is NOT shot efficiency. : The goal is lowest operating pressure to reduce noise generation... : Why won't a LP valve and spring set permit operating pressures below 300 psi in any spring configuration....? : : Did you try using a medium valve spring and a light hammer spring and then sweetspotting your reg? Or, other combinations where the hammer spring is always lighter than the valve spring and then sweetspotting the reg. : : Rick : : : Well it is winter and one just has to tinker and tweak.. : : : I decided to put my 14" Dye on and change the valve and hammer spring to see if I could get my operating pressure below 300 psi which people seem to do all the time.... : : : I supposedly bought a LP valve over a year ago. Been working fine with that 18" gas hog zniper barrel but at 300 psi. : : : I HAD the lightest spring for the valve. and the Medium spring for the hammer. Went to the heavy spring behind the hammer and added a volumizer. : : : The result was unchanged. It took 300 psi to get 300 fps out of the 14" Dye. : : : Seems like the increased valve duration and volume behind the valve would/should have an effect over the original set up... : : : Switching back to the medium hammer spring also resulted in NO change of velocity. It should have been different with no other changes being made. : : : Now wouldn't that result suggest the WITH additional volume behind the valve AND with increased valve duration open time, that there STILL isn'nt sufficient RATE of Flow through the valve. : : : If more air went through the valve from the increased open duration AND volume, then it was too late and the ball, long gone out the barrel.. : : : The VALVE seems to be the flow restriction. You know like the stock valve that we have to replace to get below 300 psi? : : : I think I might just not have a LP valve in it afterall......... : : : Any other explainations? Things to try? A way to tell for sure other than pulling out my old stock valve and seeing how simular it is to my NEW LP valve? What do I look for? [ Follow Ups ] [ Post Followup ] [ WARPIG Tech Talk - Autococker / Minicocker ]