[gwstang]

I'm doing the efi stuff into my '66 mustang.

Would anyone happen to know what size the fitting is on the 5.0 fuel rail (efi) where the bleed off valve is positioned (I think it is called the Schrader valve)? I took the fitting out and need to install a fuel gauge for the efi project. The end of the summitracing fuel gauge that I want to screw in there, is a mite too big (to screw in there). An alternate method might be the adapt the end of the summit gauge with a coupling to the fitting already screwed into the port. Any help or experience would be very much appreciated. I have already rebuilt/tested the injectors with a kit so it is ready to go. I'm trying to get as much stuff done before putting the upper intake in place as that thing is rather larger and hard to work around/under...lol

It says on the summit page: "Notes: Will directly screw into any 1/8 NPT female port."


It seems the fuel rail fitting port must be a little smaller than the 1/8 NPT size. What size is it then?

http://www.summitracing.com/parts/aei-15633

 

[rex1965]

It might be metric, the year of your 5.0 might shed some light on it. Good Luck.

 

[gwstang]

It might be metric, the year of your 5.0 might shed some light on it. Good Luck.

The efi came from a 1990. I think I stumbled onto the adapter needed for this. I added the schrader valve part above, (after I remembered that was what it is called) and then did a search and found an autometer adapter that should fit. Thanks.

I think this will work

Mechanical Fuel Pressure Gauge Adaptor - LatemodelRestoration.com

 

[alpha male 67]

yes that will work
or this one its cheaper! :yup:

 

[gwstang]

yes that will work
or this one its cheaper! :yup:

Thanks, that will do great! I can usually scout out enough goodies from summit to get to the $99 free shipping on there too. nod.gif