Engine mixture guidelines

"Newps" wrote in message
. ..


Jose wrote:
It's not the gauges, it's the fuel distribution. In order to run LOP
effectively each cylinder must peak at the same, or damned close, fuel
flow and therefore at the same time.


Yep, you're right. And this usually requires an engine mod, since stock
airplane engines are not very uniform. In any case, don't these mods
also come with a gauge for each cylender?


No, the GAMI's are six injectors that replace the standard six. They
reccomend an engine monitor but it's not necessary. As it happens I can
run real nice LOP without having to buy the GAMI's.

It's been much too long since I've known, and I'm too lazy to look it up on
New Year's Eve, but aren't GAMI injectors usually installed using an engine
monitor to obtain the best match for each injector and cylinder combination?
After the inital shop work with an analyzer/monitor, the use of an engine
monitor by the aircraft operator is recommended, but not required--exactly
as you stated.

BTW, I've always presumed that the advantage of a set of GAMI injectors was
simply that they guaranteed a matched set; but you could also have a
similarly matched set of stock injectors by carefull selection from a
sizeable batch, or simply by fortunate happenstance. Is this your real
world experience, or are you basically using the "hottest cylinder" method,
or both?

Peter