Boost Gauge Fitting

**JamesT5** · Sunday 1st June 2014, 17:50

I've been thinking about fitting a Boost Gauge to help with diagnosing issues and just out of pure curiosity to see how the car performs etc.

Is there a dummy's guide to fitting these to the P2 models because I'm not sure how to a) Power it and b) feed it through the firewall and then which vacuum hose to connect it to. I've read somewhere that the vacuum hose from the gauge has to 'T in' somewhere near the intake manifold.

Guidance appreciated!

**T5RatherAmusin** · Sunday 1st June 2014, 20:28

http://m.youtube.com/watch?v=_XQHbdgit0o

If you go digi- msg me J...

**JamesT5** · Sunday 1st June 2014, 21:31

Originally Posted by T5RatherAmusin

http://m.youtube.com/watch?v=_XQHbdgit0o

If you go digi- msg me J...

Thanks Ian. Have you installed one yourself? Good excuse for me to drive west to see you, you may be able to lend me some pointers and tips.

**stribo** · Sunday 1st June 2014, 21:36

Not sure where you T off on the ME7, but there are grommets in the bulkhead you can feed the pipe through, then just wire it into the light switch, it has switched live, and permanent live, so you can take your pic, you'll just need a multimeter to find out which is which.

**expolicev70t5** · Sunday 1st June 2014, 21:59

Mrp did a how too for fitting a boost on this forum

**T5RatherAmusin** · Sunday 1st June 2014, 22:07

Originally Posted by JamesT5

Thanks Ian. Have you installed one yourself? Good excuse for me to drive west to see you, you may be able to lend me some pointers and tips.

Of course I av

Very simple. And that vid shows everything...

**M-R-P** · Monday 2nd June 2014, 07:05

clicky linky

**LeeT5** · Monday 2nd June 2014, 10:16

You need to decide firstly what type of gauge (mechanical or electrical) the latter being much more expensive but offers more 'bling'.
You also need to decide what size and more importantly, the location.
If you wanna go mechanical and fit in the door on the back of the drivers mirror, then here's a link to my Gauge install.

http://www.vpcuk.org/forums/showthre...%29&highlight=

Plenty of info, including where and how to connect the illumination (whether you decide electrical or mechanical Door pod/dash/vent) without soldering or cutting wires or pulling your center console out and also where I connected my Vac line.

Take your time, be methodical and the results will be well worth it.
I advise that you invest in some 'boning tools'. They will prevent trim damage.

**LeeT5** · Monday 2nd June 2014, 10:38

Originally Posted by T5RatherAmusin

http://m.youtube.com/watch?v=_XQHbdgit0o

At 7'.30secs they show you how to connect the live feed by splicing into the live on the back of the cigarette lighter. This is completely unnecessary.

All they needed to do was connect to the rear of fuse 20 in the fuse box. That's what I did. Very simple and only takes 10 minutes. Much simpler than removing all the side trim, CCM from the dash.

Word of warning: Take great care and be very gentle when tightening up the brass ferrule on the rear of the gauge. Its very easy to crush then and render it useless.