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Boost gauge install hdi 90
Posted: Sun Sep 15, 2019 1:26 pm
by Gilly
Hi guys,
Can someone clarify where to plumb a boost line into on the hdi90.
As this has no intercooler do I tap into the intake manifold or is there an easier option?
Would like to know what my turbo is doing...
Thanks in advance!
Re: Boost gauge install hdi 90
Posted: Mon Sep 16, 2019 7:26 am
by frog
This is the diagram showing the turbo pipes.
If you have an air doser, that seems to be the best place to drill a hole.
Otherwise in the 90 degree hose no. 4.
Think it is best to detach the hose when drilling a hole in it, to prevent the debris from entering the inlet.
Turbo Air Piping.jpg

Re: Boost gauge install hdi 90
Posted: Wed Sep 18, 2019 8:14 am
by Gilly
Thank you very much for your reply! This helps a lot.
I’m considering adding an intercooler so this also helps the pipe layout for me.
Re: Boost gauge install hdi 90
Posted: Wed Sep 18, 2019 1:59 pm
by frog
Gilly wrote: ↑Wed Sep 18, 2019 8:14 am
I’m considering adding an intercooler so this also helps the pipe layout for me.
Here is a diagram of the extra plumbing you'd need:
Turbo Air Piping with Intercooler.jpg
Re: Boost gauge install hdi 90
Posted: Wed Sep 18, 2019 2:37 pm
by GingerMagic
The fan cowling and engine cover is also different - just something to bear in mind..
