For all you folks thinking about, playing with or actually turbocharging
your rotary engines, I just ran across a program for selecting turbocharger
maps that includes the rotary engine or 2 stroke engines.  AND it permits
you to change the ambient barometric pressure so you can simulate the air
pressure at your altitude.  It then generates the air flow/mass flow numbers
for 4 different rpm and boost setting and plots them on compressor maps and
shows you exactly where your turbo compressor wheel is operating on the map.
You can include intercoolers, pressure drops for intercoolers, etc.  The
selection of compressor wheel maps is somewhat limited at this time, but it
has a number of Garrett turbos, some KKK, Mitisbushi, and Holset.
Hopefully, more would be added at a later date.

The program cost around $27 and is graphic screens oriented (like most
Windows programs).  I have played with it a bit and it really opens your
eyes to how quickly a turbo compressor wheel selection that is great at sea
level but is el crapola at altitude.  AND you don't have to do all those
calculations.

You do have to give the program an NA starting point like 80 CID and 160HP
for the rotary.  I've checked a couple of the numbers and they come out
correct.

If you are interested contact me off line and I will answer any questions I
can and refer you to the vendor/author.


Ed Anderson
Matthews, NC
RV-6A N494BW
eanderson@carolina.rr.com