Anyone near Rockville, MD have an HKS external wastegate (Racing preferred but regular or GT OK too) on a shelf somewhere that I can run a simple pressure test on? It will only take 5 minutes and won't hurt it in any way https://www.nopistons.com/forums/pub...IR#>/smile.png



Thanks,

Brian

i'll ask around, i think most people i know are using the tial

Yeah I'm having some boost issues with my car and I want to know what happens when you apply pressure with a Mityvac hand pump to the boost side port. I don't want to use an air compressor because it delivers too much volume.. I want small volume.



Mine leaks the pressure out very very fast and I have a hard time even building up 2-3 psi... I want to know if that's 100% normal or what.



Brian

Nice sig.

nice avatar... mmmm... boobs... https://www.nopistons.com/forums/pub...IR#>/boink.gif https://www.nopistons.com/forums/pub...IR#>/smile.png



and sorry Brian... if I had one I'd volunteer... https://www.nopistons.com/forums/pub...IR#>/dunno.gif

Well I got this figured out. I know you guys are so interested https://www.nopistons.com/forums/pub...IR#>/smile.png



Turns out that even a brand new one leaks like mine does now but not as badly. I did some more testing on mine and determined that it is leaking around the hole where the plunger stem passes through to connect to the diaphragm. Think of having a bad valve guide on a boinger and you've got the right idea.



So for now, I'm just letting it overboost to 14 psi or so and it seems to catch itself there.



B

well that's how knowledge gets built up, so thanks for the update Brian https://www.nopistons.com/forums/pub...1047683827.gif https://www.nopistons.com/forums/pub...1047683473.gif https://www.nopistons.com/forums/pub...#>/BURNOUT.gif

overboost to 14 psi? Come on now https://www.nopistons.com/forums/pub...1047683664.gif

Heh, it's useful to be able to limit it to 10-11 PSI... the car is enough of a handful on road courses even without the extra HP from 14-15 PSI https://www.nopistons.com/forums/pub...IR#>/smile.png



B

I have to agree that it is definetly a nice thing to be able to control boost.