Subject: Rad plenum and cowl design
From: ACRE
Date: 11/30/2004, 11:10 AM


Jerry wrote:
Your drawing showed the S beam ends sticking through the sides of the
cowl so I had to deal with that first.     Until we  get the cowl
drawn as  it really is  we cannot have faith in the drawings
predictions.  The physical model  looks a  less alarming regarding
room
over the top.   Then there is the possibility of increasing the
spinner
diameter a TINY AMOUNT  and, at the same time,   raising the top of
the
  firewall  JUST ENOUGH to get what we are looking for while retaining
the look of the Tailwind and the ability to see over the nose.  I
don't
feel I have exhausted my options  yet.

Paul Lamar responded:
I fixed the cowl even though that had no bearing on the real problem.

More bad news. Even my mail box intake manifold won't fit the
stock cowl. This one is made with the 3 inch center line radius
2 inch tube. Would be slightly smaller with the R$B Wagner pipe.

You will never see over the nose :) I can make a blocky cowl that
fits if that is what you want :)

If you're going to make spaghetti intake runners, why not make them face
forward next to the starter, and use the cheek intake to feed it?

Russell Kent

Yes. I'll try that. You mentioned it before and I got side tracked with
the stock tail wind cowl issue. Good idea. Jerry will have to give up
one of his oil coolers or put a stock cooler alongside the rad
under the engine with longer cowl flaps.

Paul Lamar
 
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