(Login rsterne) Crosman Forum Member from IP address 66.244.241.34
Tried the new valve and found out that the larger throat required a stronger hammer strike to open it at over 1600 psi.... That's not surprising, so I made a longer RVA (power adjuster) to house a QB 78/9 hammer spring and now have enough hammer strike for well over 2000 psi.... I recorded the following velocities at 2000 psi....
25.3 gr. JSB Kings - 990 fps = 55.0 FPE
30.9 gr. H&N Baracudas - 940 fps = 60.6 FPE
35.3 gr. EunJin Domes - 900 fps = 63.5 FPE
41.7 gr. EunJin Points - 855 fps = 67.7 FPE
This is 10% more than I've ever had before with a 22XX based PCP.... and within 10% of my Hayabusa.... I'll be taming this thing down eventually to conserve air, right now it's pretty much running wide open.... Anyway, I guess the new valve works as intended.... grin....
Incidently, it flows enough air to hit 750 fps at 850 psi.... and 900 fps at 1400.... with JSB Kings....
