Boost leak testing

[Whammydill]

Ok, I have a boost leak tester, I purchased the one from Mach V. I have a 1hp/2gal compressor it can put out 2.4cfm at 40psi/1.4cfm at 90psi. I hooked it up to the intake side of the turbo and let it go, but nothing really happens. How long should it take before my boost gauge comes off of zero? I'm sure I have a good seal on the tester with the lip of the turbo, I don't feel any air escaping. Am I not waiting long enough or am I missing something?

 

[ColdAudio]

itll go up almost right away, its possible the pump isn't powerful enough but i wouldn't be able to tell ya for sure... but in my experience even on a pump that is too small is at least had a little bit of pressure