Installing A Fuel Pressure Gauge

golf4283 · May 22, 2014

Can anyone let me know what kind of fuel pressure gauge I should get and where to install? my fuel rail has no provision for such a thing (unless I can somehow use it in conjunction with the return line valve in the rail.

I have EFI in my '65 Mustang. the fuel lines are all custom and I'm using AN fittings for some of it so I'm guessing I can tap into those. I just need a recommendation from someone on which gauge to get that will handle the PSI. I'm worries the car is starving for fuel but there's no way to tell without a gauge.

Thanks,
Dan

madspeed · May 22, 2014

Whst fuel pressure regulator are you using? Some have a povision for a gauge.

golf4283 · May 22, 2014

It's just a standard regulator that came with the fuel rail I'm using (which is a stock ford rail).

It sounds like ordering a new regulator might easily solve my problem here too

madspeed · May 22, 2014

Oh, and any fuel pressure gauge will work. Mine is from Performance Fuel systems and can be had for about $30 through Summit

madspeed · May 22, 2014

What rails? Is there a schrader valve somewhere in there?

golf4283 · May 22, 2014

the problem is these regulators are all $100 or so. Any cheaper alternatives?

golf4283 · May 22, 2014

no schrader valve on these rails.

madspeed · May 22, 2014

You have some stock Ford rails with everything else custom?

golf4283 · May 22, 2014

yea. I tried to save money where I could. I really don't want to plop down $100-200 for custom rails if the stock ones will do the same thing.

madspeed · May 22, 2014

I understand that for sure. Thats why i got sn95 rails that have a schrader valve right on the rail for a gauge mount.

Now you're gonna have to get creative and find a way, most likely gonna require some an fittings which arent cheap. Assume the rails have quick connects on them?

golf4283 · May 22, 2014

yea they have quick connects. I'll check craigslist for SN95 rails. I might even have one already since I'm using an explorer GT40 intake. I think the rails that were on there had the schrader valve but I was unsure of the quick connect locations interfering with the intake and accessories.

madspeed · May 22, 2014

What lines do you have leading up to and connecting to the rails?

madspeed · May 22, 2014

Explorer rails wont work. They only have one crossover

golf4283 · May 22, 2014

I have stainless steel lines running from the tank to the engine compartment.
in the engine compartment I have AN fittings converting the stainless lines to flexible steel wrapped lines. then I have AN fittings for the quick connect fittings at the fuel rail

madspeed · May 22, 2014

They make an adaper like this that has the gauge port on ot

golf4283 · May 22, 2014

yea I saw that exact item. I was going to use that. I just can't remember if I used -6an or -8an.

madspeed · May 22, 2014

This is a cheap gauge that just works.

Can buy direct from pfs for under $20

golf4283 · May 22, 2014

what PSI should the gauge go up to?

Edit: nevermind, answered my question.

madspeed · May 22, 2014

Do you have an adjustable pressure regulator?

golf4283 · May 22, 2014

Nope, Just the stock regulator. I should probably replace that as well since it's most likely old and bad.

Installing A Fuel Pressure Gauge

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