Does anyone have a good recommendation for a firewall insulation pad? From what I've read, a lot of people have some trouble getting them to fit right.
I ordered the higher quality molded pad from Ames (FA382A) made by Quiet Ride Solutions, and have 2 problems with it. First, the fuse box cutout is an over-sized square rather than rectangular, and the cutouts for the fuse box mounting screws are on the wrong diagonal. Second, the pad has a metallic foil layer sandwiched between the jute and rubber to reflect heat, but at each opening, the rubber layer is cut slightly larger than the foil and jute layers, so 1/16" to 1/8" of the shiny foil is visible around each cutout.
I just made adjustments to the ill fitting pad where I needed to because starting with that is a HECK of a lot easier that trying to cut a bulk piece of insulation to the back of the firewall and then cutting out all the necessary openings.
2012 Mustang Boss 302 #1918, Competition Orange. FGF replacement 2006 Mustang V6 Pony, Vista Blue. Factory ordered. 2019 BMW X3 (Titled to the wife, but I'm always driving it for her. So I'm claiming it) Old projects, gone but not forgotten: 1967 FB 400, original CA car. After 22 years of work, trashed by the guy who was supposed to paint it. I had to sell it. 1980 Turbo Trans Am 1970 Mustang fastback, 351C 4Bbl, auto 1988 Mustang GT, 5 speed 1983 F-150 4x4, built 302 1994 Chevy K2500 HD 4x4, 454 TBI
I think the new pad is cut for a 69 fuse panel. The pad is advertised as 67-69, but my fuse panel shape is very different than the cutout in the pad. I spent some time making a template of the firewall holes and compared the template and the old pad to the new pad. Except for the fuse panel, I think most of the holes would line up very close to where they need to be. I would try a test install, but I'm planning on returning it, so I need to keep it in as-new condition.
