So this is just an idea I had. I don't know if it's already available or not, but instead of finding that out I'm just going to discuss it with you guys.

So we're all familiar with the aftermarket oil pressure gauges, right? I mean the mechanical ones that actually hook into the oil system to read the pressure directly.

Is there something similar for fuel pressure, or do you think that a mechanical oil pressure gauge would work for fuel pressure? Or maybe, perhaps, one could outfit a fuel pressure gauge to be permanently installed in the cab, and read pressure from the shrader valve?

I'm just curious on this. I realize there's probably some logistical challenges to get around, such as making sure that fuel doesn't end up spraying all over the inside of the cab, and you don't set your truck on fire.

I just think this type of thing would be handy, so if you're driving and your truck quits all of a sudden, you can check fuel pressure just as easily as you can your oil pressure.

It's probably too dangerous to work, but it's fun to ask.

 

http://www.autometer.com/tech_faq_an...px?sid=1&qid=1
If you want to run one in the cab look for an electric one. It uses a sensor that goes on the Schrader valve under good and sends signal through wires to the gauge in the cab

 

The electric fuel pressure gauge is the safest and cost
the most.

There are the electric/mechanical type that use a solution such
as antifreeze in a tubing/hose that comes into the interior to
the gauge and are cheaper than the full electric type.

The expensive ones use a sender and a wire. (No hose).

The electric Autometer fuel pressire gauge uses a sender
and also a seperate black box that supplies voltage to their sender.

For both types of fuel pressure gauges, you remove the schrader valve.

Here's a picture of my Stewart Warner electric fuel pressure
and oil pressure gauge. Both use the same model sender.
Just one wire for each gauge comes into the cab.

 

Sweet. Thanks for the response, guys. This probably isn't something I'll do to my truck any time soon, but I will add it to my "truck to do" list.

 

You could also mount a cheap fluid filled analog gauge directly on the fuel rail, the one I have has been working for about 15yrs and on two motors and never leaked.

 

ooooh... i like that setup, conanski. where does one find one of those gauges??

 

Summit, Jegs, etc.

Analog, 0-100 psi, fuel pressure gauges at Summit: http://www.summitracing.com/search/D...i/?Ns=Rank|Asc

From those:

Liquid filled mechanical: http://www.summitracing.com/search/D...s/?Ns=Rank|Asc

And from those:

1-1/2" Diameter: http://www.summitracing.com/search/D...r/?Ns=Rank|Asc


The only issue with mounting the gauge directly on the rail, is that you won't see it while you're driving. I run a mechanical liquid-filled 2-5/8" diameter gauge on my XR7. It's mounted under the cowl, in clear view from the driver's seat.



The rule of thumb here is that you can run a mechanical gauge if it is outside the passenger compartment. If the gauge will be inside the cab, use a gauge with an electrical sending unit.

 

You can run the mechanical gauge into the cab , but you need to use an isolator before it goes thought the fire wall....