one way vacuum valves?

[mechanix565]

should i have one way valves on all my little vacuum lines? BOV line, Wastegate Line, Fuel Pressure Regulator Line, Brake Booster Line etc? or just straight lines from manifold vacuum to the components?

 

[govproperty]

The only place that you might consider a check valve would be in the PVC or breather lines. So that you will not pressurizes the crankcase. Everything else should have an unobstructed line. Oh and the brake booster already has one in it.

 

[mechanix565]

ok well i have a K&N breather on my Valve Cover so ill just install a 1 way valve on my PCV Valve Line then.. Thanks

 

[govproperty]

Check out this thread for more info, where to buy, install,etc.... Page 9 has a good pic by Calan showing the samething you are trying. http://www.dsmtuners.com/forums/newbie-forum/229338-stupid-pcv-question.html
Make sure you install the check valve with the vacuum side toward the valve cover.

 

[steve]

Only the brake booster has a check valve.

 

[govproperty]

I thought he was referring to adding something similar to crank vents.
http://www.dsmtuners.com/forums/151669903-post241.html