Hi Paul,

Finally got a moment to make that firewall outline.  This is close but
rough, we still don't have our fuselage parts joined together yet...

One file is a powercadd file the other just a plain JPEG.

Our design goal is to have the engine as high as possible for prop
clearance.  We are using 2 1/2" 16 guage pipe for our intake runners,
over the top, as usual...  I've got your remote mount water pump so
we'll need to allow for that as well as a different mounting arrangement
for the alternator, as you already know.

We bought George's 1st bell housing and would like to use that for the
front motor mounts and I'm partial to your idea for the single rear MM.

Thanks so much for offering to help.  If I can ever return the favor...

Chris Cosman
801.455.5655

I was wondering what happened to that Chris.

Can't handle the Power Cad file. The numbers on the jpg are too small to
read. What should they be? Can I put the motor mount hard points anywhere
or do you have some preferences? What is the firewall made from? Does it
have a plywood core? If so how thick? Do you have a design for a cowl
or should I do one for you? If you have a side view and a top view that
would be a start.

Can you build the motor mount or should I get a quote on the mount from
Performance Solutions?

I think I will also need a sketch of George's Bell housing with dimensions.

2-1/2 inch pipe is 2.88 inches OD. I assume you have one of Tom's 20B intake
manifolds and you are using just two of these. If so what is the center
line radius of the pipe bends as that will determine the position of the thrust line.

Also if so put a carpenter's level across the top of the rotor housing and measure
the vertical distance down to the surface on the manifold where the 90 degree pipe
bend starts. That will give me a reference number for where the thrust line can go.

Paul Lamar

BTW Chris are you sure you have 2-1/2 inch pipe and not tubing? Pipe comes in schedules
and tubing comes in gages. If tubing I know the bend radii.

Paul Lamar

It will look something like this. You can style the cowl mold buck to your 
liking of course. The oil pan heat exchanger shown is untried and too radical.

Paul Lamar
 
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