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Terrance,
1" manifold pressure less than full throttle. I wanted to see if on my carbureted engine, less than full throttle, would even out the EGTs. As you can see in the graph it did.
In the past, when I ran the test at full throttle, cyls 1,2 & 3 are 50°F LOP by the time cyl 4 reaches peak. The engine is running so lean at this setting that I can't stand the vibration.
With the throttle pulled back 1", all cyls are very close to peak at 6.3 GPH and the engine is still running smoothly. I am 5 KTS slower than at full throttle but have gone from 8.0 to 6.3 GPH. This is a 21% fuel savings for a 3% speed loss.
In a 4 hour (676 NM) trip, it would take 7 minutes longer and save 6.8 GAL or about $28.
You pays your money, you takes your choices.
Lorn
On Oct 7, 2009, at 10:21 AM, <troneill@charter.net> <troneill@charter.net> wrote:
Good.
What does " 1" Pull Back" mean?
I'm presently tuning my injectors to ... or tryign to.
Download the GAMI Flight Test Data Form from:
http://www.gami.com/gamijectors/leantest.php
Terrence
L235/320 N211AL
--
Lorn H. 'Feathers' Olsen, MAA, ASMEL, ASES, Comm, Inst
DynaComm, Corp., 248-345-0500, mailto:lorn@dynacomm.us
LNC2, FB90/92, O-320-D1F, 1,635 hrs, N31161, Y47, SE Michigan
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