I see very little point in gauges in the engine compartment.
You will want to know what the parameters you are measuring are ,
when things are under load..
'in flight' ..at speed
going up hills etc.

Recording Instruments ...sure those make sense in an engine compartment..
and download the information post driving..
but while driving.
you really want real time info ..
and
that means gauges in the cockpit.

heck ..if you stop, jump out, and open the engine compartment  to read the
gauges
they won't be telling you what they just were reading under load and at
speed.

and information at idle
is only so useful.

I am leery of a full time fuel pressure gauge in the engine compartment for
fire reasons.
no factory car ever has that.
Racing cars have it in the cockpit..as do aircraft.
'on the engine itself' is inherently risky,.

just another fuel part to easily break in a crash.
those fuel rails with the little gage on them..
does not reflect strong crash and safety consciousness much at all.

I'll do it temporarily for testing..but full time ..
no way.

Safety maven and nut,
Scott

----- Original Message -----
From: "John Rodgers" <inua@CHARTER.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Thursday, September 22, 2011 8:12 PM
Subject: Gauges in the engine bay

> I've collected from somewhere two photos - one marked FPG and the other
> marked H2O. I would like to pursue this in my own van, but I've
> questions. For a permanent installation in the engine compartment, what
> gauge should I get for the fuel pressure, and as for the H2O gauge what
> should I use. Can these be just any pressure gauge like from Lowes
> Hardware or the like? And as much as anything - where would I install
> that water gauge. I can only see the face of the gauge - marked 0 thru
> 25 -  but cannot see the plumbing connection, so I don't really know
> where it hooks in.
>
> If anyone has any ideas as to how best to get this done, I would
> appreciate hearing them.
>
> Thanks,
>
> John
>
> --
> John Rodgers
> Clayartist and Moldmaker
> 88'GL VW Bus Driver
> Chelsea, AL
> Http://www.moldhaus.com