I've got a nifty little liquid filled 0-100 PSI underhood FP gauge and I'd really like to mount it on my fuel rail; could I use the schrader valve as a source, or is there another method you'd all recommend that doen't require buying more braided steel hose and -AN fittings lol.

 

Unless u buy new fuel rails that have fittings already then u have to ure the schrader valve as a source

 

Is there a fitting that can attach to the schrader valve and keep it depressed so I can get a reading with the 1/8 NPT gauge? It problem with my gauge is it's 1/8 NPT male just like the schrader valve fitting. I guess I could use a coupling but I'd prefer to have a way to mount the gauge at a 90* angle for aesthetics and convenience.

 

The schrader valve gets removed when installing a gauge on the rail.

 

ah, makes sense, thanks