i want a little FP guage for under hood, is this what i want?

that would work, make sure you have the correct adapter to mount it to the shrader valve. I had to get a fitting from summit. And BE CAREFUL when you install all of it. The fitting I bought was brass, as most will be, and I twisted it too far and broke it off in my schrader valve. I had to replace my fuel line.

That gauge doesn't look like it has many incriments, so if you could find one from like 1-50 psi or so, that might be better. Mine is a BBK liquid filled (summitracing.com part number BBK-1617) and it comes w/ the fitting...apparently now they say it does...it didn't 2 years ago!
 
I'm not too big on installing a gauge directly to the fuel rail. NVH can take a toll. Better to run the gauge remote mounted. Jrichker has a nifty little write-up for a gauge and how to do a line on the cheap.

Good luck.
 
Fuel pressure gauge adapter fittings:
http://www.holley.com/products.asp?product=17945NOS AN 4 to 1/16” pipe
http://www.holley.com/products.asp?product=16785NOS 1/16” male pipe to 1/8” female pipe

Or
See http://www.autometer.com/cat_accessorieslist.aspx?pid=10

I made my own pressure gauge and holder. I bought the NOS or Autometer adapter that you screw into the place on the fuel line where the schrader valve goes. I ran a piece of SS (stainless steel) braided hose to a brass T fitting that I mounted on the fender well by the MAF. I made a mount bracket out of aluminum angle I got from Home depot and bolted it to the fender well. Then I mounted the brass Tee to it with some machine screws and a plate. I sandwiched the brass Tee between the aluminum angle and a flat piece of aluminum that I trimmed off the extra aluminum angle. Three screws laid out in a triangle pattern go through both pieces of aluminum to clamp the Tee in place. I used a cheap industrial gauge from MSC Direct (http://www1.mscdirect.com/CGI/NNPDFF?PMPAGE=4590). It works great and was cheaper than anything Summit had.

If you look through the MSC Direct catalog, you can find any type of gauge you want, including liquid filled. You only need a liquid filled gauge if you mount it directly on the engine. The liquid filling dampens out the vibrations.

You can buy the Autometer Stainless Steel braided hose for like $60. Or a local shop that makes hydraulic hose assemblies can make it for you at a cheaper price. Ordinary low pressure hydraulic hose can be used in place of the Stainless Steel braided hose, the Stainless Steel braided hose just looks nice. I got mine for $4 at a place that sells industrial and military surplus parts of all kinds. The Stainless Steel braided hose goes for about $3.60 a foot and the fittings are probably about $5-$8 each. You can make your own and save some $$$, the shops may have a setup or labor charge to fabricate the hose assembly.

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This is what you want. I got it from a US Mustang shop as it is a proper gauge for the schrader valve etc. As it screws on a pin contacts the valve and opens it and vice versa when you unscrew it the valve shuts.

Its super handy as it can be installed or removed in seconds. You can see it installed in this pic as I also fitted the schrader valve to larger rails for this reason.

Just checked it and its made by Performance Fuel Systems (USA) and there is a number on it 9085-01.

JD

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Foxfan88 said:
so the 1/8th pipe thread wont go right on the Schraeder valve? We go tons oft AN fittings at work so i am sure i can find one there.
The schrader valve fitting is 1/16" pipe, an odd size that does not match any of the common AN fittings.