I've wanted to add another gauge for a while now, mechanical FP pre-filter, to monitor exactly what the Mallory is set on and to compare the loss of psi's through the filter ( I have a SPA gauge in the cab, monitoring the post filter psi's). I was going to put it in the cab, but really wanted to try a exterior mount, to see how it looks/performs.
I picked up a small sheet of heavy gauge steel, cut a 1" strip from same, bent it to the correct shape to follow the contour of the hood, sanded and painted the mount flat black and added a strip of felt on it's underside to protect the hood from scratches. The line within the wire loom is braided SS -4AN. I drilled two holes under the hood, where it mounts. Overall, I'm pretty happy with the install.
Here's a few pic. s of my 4 ton Vette... .
I picked up a small sheet of heavy gauge steel, cut a 1" strip from same, bent it to the correct shape to follow the contour of the hood, sanded and painted the mount flat black and added a strip of felt on it's underside to protect the hood from scratches. The line within the wire loom is braided SS -4AN. I drilled two holes under the hood, where it mounts. Overall, I'm pretty happy with the install.
Here's a few pic. s of my 4 ton Vette... .