FORGE (FMDVSUPR) Blow Off Valve
This is a good valve machined by FORGE (FMDVSUPR) with very high air flow rate, but distinctly slow acting. Say you have FORGE diverter valve like me, and say like me you are unhappy with it’s reaction / activation time. There are few causes some of which I intend to trial to rectify. A short summary of areas to tackle:
-Heavy piston
-Large piston volute (takes time to evacuate)
-Small vacuum line (Forge offers cap with larger fitting)
There are number of things you can do about it. I will start with heavy piston. As supplied by Forge, it’s weight is...