Intake Manifold : Vacuum Outlet Location
#1
Intake Manifold : Vacuum Outlet Location
How important is the location of an outlet to measure/accure vacuum off of the intake manifold; say the front verses the rear? I am thinking of using the port for the PCV system to install a boost gauge. Will this give the same measurement as tapping into the brake booster line?
Thanks,
Keith
Thanks,
Keith
#2
9 Second Club
Yes. But make sure you either restrict the line, or use very small diam hose. Otherwise you will get fluctuating readings/shaky needle
This applies regardless of where you take the reading from on the inlet manifold.
This applies regardless of where you take the reading from on the inlet manifold.
#4
9 Second Club
A hole about 0.010" to 0.020" would be small enough to ensure a smooth reading with no irregular needle shaking.
Simple rubber hose would do. 3/16" or about 3-4mm ID. Depends on size of fittings you are pushing the pipe onto.
Simple rubber hose would do. 3/16" or about 3-4mm ID. Depends on size of fittings you are pushing the pipe onto.