pressure with vapor valve

[pyscho dogs]

hey guys i have a 2003 bko with vapor valve cp high pressure reg,micro rock low pressure reg,mighty max, just wondering if any body knows wehat pressure i should be running. Right know im running about 190-200 on my high pressure side. and have been adj. my velocity with my low pressure. things have been going alright but i have started to break alot of paint, could be old paint, also what would you recommend to adj. the velocity high side or low side thanks. :confused:

[Anonymous28]

raise the hpr to 220-250 and use it to adjust the velocity turn in the lpr until it leaks than back it off a half turn. that should help

[jwong]

Originally posted by pyscho dogs
hey guys i have a 2003 bko with vapor valve cp high pressure reg,micro rock low pressure reg,mighty max, just wondering if any body knows wehat pressure i should be running. Right know im running about 190-200 on my high pressure side. and have been adj. my velocity with my low pressure. things have been going alright but i have started to break alot of paint, could be old paint, also what would you recommend to adj. the velocity high side or low side thanks. :confused:

I had pretty much the exact same setup.

190psi gave me the best efficiency assuming you're using the stock valve spring with your setup.

If you're having a lot of barrel breaks, I strongly suspect it's the paint. That happened to me as well. As soon as the brand of paint changed (the field I play at only allows field paint), the barrel breaks stopped.

If you were using old paint, chances are, they became swollen over time and/or more brittle.

Cheers

[jwong]

Originally posted by Anonymous28
raise the hpr to 220-250 and use it to adjust the velocity turn in the lpr until it leaks than back it off a half turn. that should help

With his setup, bench adjusting the regs as you've described will result in shooting very hot (ie. much greater than 300fps).

Efficiency goes out the door as well.

Cheers

[lotus_esprit5]

190-200psi is exactly where you should be, most ppl with BKO's set up like yours run them in that range.

It's probly the paint.