dump valve fitting / boost problem

[PureButeS12]

i've just fitted a dump valve to my ca18et S12. the valve isnt dumping & my standard boost gauge is staying around zero. i have plumed the vacume hose to the blanked niple next to the clutch master cylinder as discussed on a previous threat

the forge dump valve was off a s14. is it not dumping or reading boost beacuse the spring is too hard for my puney 7psi or have i connected the vacume incorrectly?

any help would be a great help

[irish s12]

Have you got a picture of the way it's connected?

[PureButeS12]

Originally Posted by irish s12

Have you got a picture of the way it's connected?

giz 5min & i will have

[PureButeS12]

Originally Posted by PureButeS12

giz 5min & i will have

actually scratch that, my dad's F'd off with the camera GRRRRRR! i'll have to wait until tomorrow

[PukkaSilvia]

is the car actually making boost?

[PureButeS12]

Originally Posted by Pukka

is the car actually making boost?

i dont think so, its hard to tell with such low boost as standard? possibly not. i'm goin to have a good look over it in the morning... could a dodgy vacume prevent the turbo from working?