I have decided to use a turbo p-port 13b on my Wheeler. I have the core
engine completed and sitting on the engine mount at the moment. Before I
make the engine mounts, etc. and start laying out the rest of the engine
compartment I need to confirm a couple of things-

My plan is to have around 250HP or so (maybe a little more) and end up with
a modest boost at take-off power. The boost will be controlled to maintain
this power level if desired up at altitude.

1. The first question is about the intake runners. Is it necessary to
maintain the 18 inch length of the runners even if I run a turbo? Or, can I
run the turbo discharge into a plenum with just enough tubing to make it in
to the plenum after the throttle plates?

2. Is sufficient heat available from the cooling water (read heater core)
to provide cabin heat at high altitudes in cold weather. Here in FL heat
wasn't much of an issue other than having too much of it, but in the
Carolinas in the winter I have seen OAT below 0 at 12,500'. That's cold.  I
remember that the rotary uses the oil as a means to remove waste heat, so
would it be a better idea to use oil as a means to heat the heater core for
cabin heat?

3. There has been a lot of discussion about turbos and getting them to live
longer than an hour or 2 with the rotary. I have found 2 types of turbos
that are described as "continuous running"- one has ceramic bearings and
the other has a "floating journal".  Advice here would be helpful- the
turbo I select will determine the exhaust header selection.  A model number
or something would be a great start.

Kevin Alderman

On the intake length the 18 inches are still an advantage with a turbo as during
the low boost phase there is still a breathing advantage. That translates to slightly
lower fuel burn per HP generated.


If you send me a sketch of the fire wall I'll do a 3D layout of the motor mount
and turbo installation.

The KIS  shown has a higher thrust line than most aircraft so the position of
the thrust line relative to the top of the firewall is important for 18 inch runner
clearance.

Paul Lamar
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