70Duster440
Well-Known Member
Wondering wihat PCV setup you're using with 6-71. Breathers only? Check valve, catch can? Really don't want oily residue collecting in engine compartment.
I bought one made out of brass that has a 1 way check valve in it. On vac it send the fumes through the intake, on boost the check valve shuts it down so you don't pressurize your crankcase.
I have Breathers and this check valve is plumbed to the plenum after the throttle body engine side.
Quick opening brass check valves here... Just 0.3 PSI to crack it on VAC, on boost it will close like right now.
http://www.mcmaster.com/#standard-brass-check-valves/=hc53fz
There seems to be conflicting opinions on a PCV system with a blower. BDS and the Blower Shop both supposedly recommend against the traditional setup and suggest multiple breathers on the VC's. Their reasoning is it can suck oil in causing a lean condition.