dump valves

[tungsten21]

i have my original dump valve blanked off,and one is attached to the plenum chamber,my question is what would happen if i fitted a performance dump valve in the place of the oriuginal and keep the plenum one?so i would have two dump valves one hot one cold,would they both work?how is best to do the vacuam hose?

 

[DaveL485]

Yep

You can just plumb another one in for twin dump valves, just T off the vacuum hose and itll work fine.
Not really necessary, it wont be any louder and you wont get any chatter or flutter.

One decent dump valve is sufficient to dump up to about 4 bar of pressure....

But it does look quite cool to have 2 i guess

 

[tungsten21]

cheers dave,what dump valve is best to take the place of the original,and does it use two outlets like the original or just the lower hose,keeping the other hose blanked????