Lorin:
Looks like I caused some confusion with the Ford Escort intake manifolds. The
group had discussed ideas for making a lightweight intake manifold. It
gravitated to using a flange (a bunch were made and I think Tracy has some
for sale) and aluminum tubing but the problem was how to bend thin wall
aluminum tube into a small radius U shape. The Escort manifold has four thin
wall aluminum U tubes in it. This is a cheap source for the U tubes. The U
tubes would be cut out of the Escort manifold. Now with the flange, U tubes
and some straight tubes a lightweight Mazda manifold can be made to each
persons specs.  Each manifold would be custom since some people wanted
injectors near the engine and others wanted them as far away as possible.

Runner length would depend on what RPM the manifold was to be tuned for. The
plenum shape may also vary if pulse charging was to be used. The angle of the
throttle body does not matter since you only want it for the U tubes. I only
saw one Escort manifold type that was made of welded up thin wall aluminum
tubing (bright, shiny and smooth like vacuum cleaner pipes), the others were
cast aluminum.
I hope this helps.     Ed.    pebvjs@aol.com

 
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