<plug fouling on avgas txt snipped >

Perry is still using the stock 2nd gen computer system with no way of manual leaning.
At least he did not have a way a couple of years ago. My RX8 engine with
the stock computer holds the mixture to .01 of stoichiometric.

Due to NOX emissions Mazda has little choice even though leaning
at 65 MPH cruising to 100 F EGT lean of peak would result in better MPG.

Paul Lamar

Hi Paul -

Just wondered if * all * your petrol - engined  cars are catalyzed
in your state ? Our cold limey weather does leave a lot of
rotten egg smells coming out of the pipe while the EGT rises high enough
( on small 84 cubic inch engines & smaller still )  to get the cat
working. A real design & legislative mistake IMO !

We are also looking at looming plans to silence our motorbikes to 74 dBl
arrgghh!


Fly & Build  Good - Bryan

Yes I think they are. Rapid warm up is also given strict attention
with double valve thermostats that recirculate the coolant until
it gets hot. Engines less than 1.8 liter (100 ci) are rare however.
Only in the high mountains (2000 meters) do we see low temperatures
much less than 30 F.

Bryan I was wondering about the rules in England. Are alternate engines
outlawed in homebuilt s over there? We have so few people on our list
from England. Also if you get up to Birmingham and see Eamon Hurley
tell him I said hello.

Paul Lamar