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How do I set up vacuum between various turbo components?

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#1 dpuma8


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Posted 06 June 2016 - 12:37 PM

I am getting ready to try starting my NA-T but I am not sure how to hook up the vacuum lines to various components.  I have a boost controller, turbo with no vacuum fitting on it, fuel pressure regulator, BOV, external wastegate, and a boost/vacuum gauge that need a vacuum source so I was wondering what the best way to hook all this up was.  


Also, I have the Tial MVS external wastegate but am not sure which of the top ports to plug.  I have one vacuum source going into one of the bottom three ports but don't know what to do for the upper port and the hole directly on top.  Any ideas?


Is there a general maximum amount of tees you should use for one vacuum source?

1975 280Z L28E with Megasquirt II 3.57

#2 TimO


    TimO ~ orig. owner 72z

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Posted 07 June 2016 - 05:24 AM

I used one of these to make a vacuum manifold for my turbo conversion. By the way I'm not that far from you. Nevada City. Let me know if you ever get up this way.







#3 JSM


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Posted 07 June 2016 - 10:06 AM

I would jump on google images and search for diagrams.  You will be at the mercy of whomever came up with the diagram but it will get you started.  This is one I stole off google images by searching for, "turbo vacuum line routing".




Off course it would be helpful for you to learn all the theory and application of each component and get Corky Bell's book, Maximum Boost.

Edited by JSM, 07 June 2016 - 10:08 AM.

1971 240z
1980 280zx
1988 300zxt

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