Posted for "Shannon Knoepflein" <kycshann@kyol.net>:

http://shannon.v8eaters.com/images/lancair/Others_Pics/05_08_02/gottaund
erstandg.gif should help in this discussion.  70-100 ROP is best power,
50-70 LOP is best economy.  50-70 LOP is MUCH less prone to detonation
than 70-100 ROP.  If you want to run ROP, run way rich, 125+.  If you
want to run LOP, you can run just a little lean of peak (say 25-50), run
much cooler, have more detonation margin, better economy, etc, etc.

For all that haven't gone, I highly suggest the Advanced Pilot Seminars
that george, walter, and john put on.  www.advancedpilot.com I believe.

---
Shannon Knoepflein   <--->   kycshann@kyol.net


<<I have 10:1s in my IO-320.  Got them from Lycon.  Steve Mehalek of
Lycon
told me to NEVER (his emphasis) run any leaner than 100 ROP, 150 would
be
better.  Q-Tip>>
<<the question was:  what about 2100 and 25" with 10:1 pistons??? <<