HOW TO MAKE YOUR OWN “S” SHAPED THIRD BRACKET

I started off by making a rough template out of very mild metal strapping with the Powerdyne being in place and installed on the engine…if only by the two long ‘spacer’ bolts. Once I had the template I remade the bracket with much stronger 3/4” wide angle iron. I pressed it flat in a vice. I then took turns bending each end at opposing 70 degrees with the help of the vice while hammering on the ‘bend.’ This creates the ‘S” shape. I then marked where the bolt holes should be and drilled them out. I used a file to smooth down the outer edges of the angle iron and I also had to trim it down just a bit for final fitment. If you wanted to make the bracket stronger you could weld a bead lengthwise along the length of the bracket where the two halves of the flattened angle iron meet. You could also weld a bead along the ’70 degree bends’ to make them much more rigid as well. (Perhaps do this after final fitment of the bracket has been tested.)

A section of 200mm long x ¾ wide angle iron works fine. I chose angle iron as it was available and the folded ¾” width fit well down under the heater core inlets. Any thick steel should work, but not cheap soft strapping. The folded angle iron is still very strong and should be rigid enough for this application. If you have a welder handy and want to run a bead length wise or along the bends then so much the better. Most any hardware store should have a 1” long 17mm hex head bolt and it’s matching 17mm nut and lock washer for mounting the bracket to the Powerdyne mounting plate. (17mm keeps things all the same as the bolts and nuts that make up the other two main Powerdyne mounting spacer/bolts are 17mm.)

The below pics include the basic measurements as it works with my Powerdyne.

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