can it be done ? mine is at 15psi idle and drops to 10psi WOT. i have a 10 micon filter on it now. id love to see 18psi idle and 14psi WOT.
Yep just did this the other day, took about 10 min at the most. A new spring is 25, or like satated above you can stretch the old oneFass offers a spring to bump the pressure to 45 PSI ish. if you want to do it the cheap way take the return fitting out and stretch the stock spring a bit and try it again. The pressure is controlled by this spring and a check ball behind that fitting. don't lose the the check ball or you won't build pressure at all. All those goodies are behind the return fitting :thumbsup: