X-Mozilla-Keys:                                                                                 
Bulent Aliev wrote:

Paul wrote:

MKPerry99@aol.com wrote:

Contact magazine issue # 35 has an article from Ken Rogers on how he made his
intake manifold using extruded polystyrene foam  He shaped the foam then
applied drywall joint compound.  After drying and sanding the joint compound,
he coated the intake runners with PVA release film and applied five layers of
10 ounce bidirectional cloth saturated with epoxy resin.  After curing, he
dissolved the foam with lacquer thinner and washed out the joint compound and
PVA release film with water.

Mike

I think this is the guy Vance mentioned.
Where did he get the extruded polystyrene foam?

All EZ type aircraft use it for the wing cores. It'is the blue foam I suggested
earlier. You can get it from Wicks or Aircraft Spruce in different size blocks.
Bulent

We have come full circle. Shaping a bunch of round tubes out
of square stock is what I would like to avoid. That is why we
are looking at the flex pipe insulation.
We discussed the shape-the-blue-foam trick months ago.

I need four pipes 24 inches long 1.5 inch  ID.
There should be a 180 degree bend on one end with about
a 4 inch radius. On the other end I need a short curved
section with about another 4 inch radius.

I am getting ready to forget it and have it welded up
out of aluminum tubing :-)

Paul Lamar
 
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