I'm not looking at using it for the motor mount at all.  That's
why I only want enough sticking out to mount the starter.  I'm going to do
the sandwich with the oil pan that includes the windage tray (keeps the
aerobatic oil displacement under control).  This will extend out the side
and rest on a bed mount I'm working on.
         I don't have any good drawings to send yet or I would.  I quickly
plagiarized one of your RV-4 mount drawings to give you an idea of what I'm
talking about.  The RV-4 has a sort of tunnel that runs forward from the
spar (F-413R & L for the RV-4 guys).  I am going to extend that and have it
widen out enough to let the engine rest on it.  It will require some rework
of the fire wall and a work around for the gear but I think when it ties
into the forward fuse it will be a little cleaner and stiffer than trying
to work with the original mount system.  It sounds complicated but as much
as I've thought about it, looked at the plans and sketched it out it really
isn't.  I'm going to try and get this CADed up this week and I'll post it
up for critique.
         Ya know, the more I look at this the more I think I should just
cut up a bell housing for the redrive mount.

Mike

Mike McGee, RV-4 N996RV, O320-E2G, Aurora, OR
13B in gestation mode

The more I think about it the better I like it. Easy to add a little
cockpit heat.
Leaves lots of room in there for exhaust. You will need a custom pan of
course.
A shallow pan with a dry sump and a separate oil tank might work well.

Looking forward to the CAD drawings.

Paul Lamar

         The way I have the tunnel arranged (planned) the air out of the
rad will circulate across the oil pan for extra oil cooling (not much I
realize but "some").  I expected to build a custom pan so while I'm at it
I'll add some cooling fins.  I like the dry sump idea but I don't know if
I'll have the room.  I'll probably at least have an accumulator.  This
plane has a flop tube in the fuel tank and with the change to Tracy's fuel
injection it will need oil pressure when it's upside down.

         The exhaust will be arranged into an eductor setup so that it will
create an induced draft through the cooling system.  If I set it up right
it will pull a couple of inches of Hg on the down wind side of the rad.  I
have a muffler idea that I think I can fit in there as well.  It will take
some more room under the forward fuselage, probably extend the lower
cowl/tunnel back at least to the spar if not the trailing edge of the
wing.  It'll sort of look like the tail of a Garrett turboprop tucked up
real tight.  (What the heck, it'll match the  turboprop looking nose).

         I'm spewing a lot out here that I haven't laid metal or fiberglass
or even CAD  to yet so I need to stop talking until I have something to
talk about.  This is my winter project I'm hoping to get flying by next June.

         Ideas & critiques are always welcome.  I wish I was making it to
Tracy's next weekend to catch up with the rest of you guys.  I would be
lobbying for that 2.85 redrive!  My EC-2 should be shipping soon so
hopefully I'll have this thing running on the test stand next month.

Mike

Mike McGee, RV-4 N996RV, O320-E2G, Aurora, OR

 
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