How to operate vnt15 controller on 1.6L

[CasaEd]

I think i was having a senior moment ! when you said if a boost pipe came off etc i was thinking of the pipes from turbo to inter cooler to engine, not the link pipe on the turbo to the boost can ! Duh ! I have a good quality piece pf tubing on my setup,
I could put a metal pipe with a banjo fixing and a real short piece of tube to further reduce the risk, but for now I´m happy with the set up i have, Been looking around at easier alternative to make it vacuum controlled, came across an Australian website
where they use a Dawes Valve to control the VNT. Anyone have experience of this setup ?

[jmaddocks]

I think a Dawes valve is just a fancy name for a manual boost controller, which is basically a spring check valve with adjustable spring preload.  I used to run one on my Corrado.

Edit:  the Dawes valve would control the input signal to a WG diaphragm setup...I think it would have the same limitations and risks that libbydiesel discussed earlier.

[libbydiesel]

If ANY boost connection comes loose anywhere either between your intake scroll to boost can OR from compressor outlet to intercooler to intake manifold, the same situation can occur.  In the last decade or so I have had two different couplers 'pop' despite everything being attached properly.

[CasaEd]

@jmaddocks The boost controller you had on your corroda was for a waste gated turbo,
the dawes valve set up i looked at was usuing a vacuum can on the turbo supplied from the vacuum pump, the vacuum was regulated by suppling boost pressure to the other side of the valve.

@libbydiesel, the senior moment was oil inthe engine bending rods with the main boost pipes between scroll and inlet manifold, and thanks for the warning.