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Old 9th December 2014, 12:45 PM
Adz Adz is offline
Banned from Sales
Join Date: May 2011
Location: Herts
Posts: 31

take 1.5 turns out off hammer spring, outlet valve preload is 12mm with the top hat removed, 100bar reg, reg needs the pressure adjuster screw locking to avoid fps variation (use a cut down Bolt n washer) no need to drill the transfer port. I get 120 shots from a s400 classic with this set up
Std spring no good as too soft and gives valve bounce, wasting air
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