After sending those pictures of our 6 exhaust port RX8 turbo engine, I
thought some of you might like to see some of the other interesting things
we have done recently.

First batch:
Aluminum 2-rotor engine
(4) 2200 cc injectors on the manifold


Second batch:
20B Intake manifold --- upper and lower runner halves are CNC'd from billet, then welded together.
Uses 3 individual throttle bodies.
Engine was going into a Lamborghini Diablo kit car.


Dave Lemon

Nice work Dave but we need max HP at 7500 RPM and peak torque
at about 6000 RPM due to gear ratio limitations and prop tips
going super sonic at around 2800 RPM. In effect this limits the
engine RPM to around 7500 RPM. The engine runs into a brick wall
at that RPM.

The gear ratio available so far is 2.85:1. This means the runners must
be about 18 to 20 inches long and must wrap up and over the top of the
engine to fit in most cowls. A 2 inch tube OD is about the max
that will fit on top of the engine under the cowl top.

We also like P-ports. There is no load on the engine with
a prop to speak of until one gets to 6000 RPM or so.
It is not like we need torque off the corners.
The p-port gives us slightly less fuel burn.

Paul Lamar