I just had a brilliant idea.

  Unbolt the DD15 turbo
  and blow down turbine and bolt it on a Mazda p-port 3 rotor of around 500
  HP.

  If you can do that and show a legitimate .39 BSFC on the dyno the world
  will beat a
  path to your door.

  Paul Lamar


 I know you can come up with a quick and dirty turbo compound Paul.  Don't
 quit on the idea.  Maybe this is it.

 Van

 I think so. It might not be perfect but it can be optimized after the
 principle is demonstrated.

 Paul Lamar


 Big truck junkyard. I can get a whole older engine for $5K. They sell
 removed parts too.

 Kevin Alderman

 The DD15 has only been around for 3 years or so.

 Paul Lamar

Steve again

How sensitive to exhaust back pressure are diesel engines?
I wonder what order of restriction the Axial Power Turbine would introduce and how a
rotary will respond?
Obviously 13, 20B's have been happy with driving a turbo turbine but how do they
compare with an axial power turbine?

Steve Izett

Well here is some old NACA data on the subject of back pressure on TC engines.
Sorry about the crappy copy but what do you expect from government work?
I tried to clean it up but it is tedious work.
-----------------------------------------------------------------

Here is the complete raw original paper.
Somewhat easier to read the numbers.

It looks like the net power continues to increase up to a back pressure of 60 inches
of Hg.

Paul Lamar

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