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Date: Fri, 26 Aug 2011 18:38:01 -0400
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Subject: Re: [LML] Re: How do I run lean of peak?
From: Paul Bricker <pbricker@att.net>
Thread-Topic: [LML] Re: How do I run lean of peak?
In-Reply-To: <list-5103524@logan.com>
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Robert is correct that many engines can run LOP right out of the box. I
wasn't as lucky with my IO-550N from Performance. I had 1.7 gph spread!
GAMI initially sent a set of "E" sized injectors to get me in the
ballpark, and then we swapped out 3 and 4 with "F"'s, and the spread was
down to 0.2 gph. The engine loved running LOP. I ran my ES WOT, 2500 rpm
at 10,000 at ~ 11.5 gph and 184 KTAS.

Paul Bricker

On 8/25/11 7:48 AM, "Lancair" <lancair-esp@ustek.com> wrote:

>A lot has been written about GAMI injectors but they are far from
>required for LoP operation.  I had a Lyc IO360 by Aero Sport Power,
>Kamloops BC  in my GlaStar and ran the GAMI fuel burn test.  The fuel
>flows were beautifully balanced and I ran LoP just fine. The plugs were
>clean at every check and I had 500 hrs on it when I sold it.  Changed the
>plugs once.  Saved 1.5 gph as I recall.
>
>After break-in of my Cont. TSIO550 by Performance (yes, THAT Performance)
>I ran the same burn test and lo and behold it too had great balance.  All
>cylinders peaked at about the same time although at different
>temperatures.  I cruise it TIT 1550-1600, EGT 100F LoP 17.3 gph set at
>2500rpm and 32=B2.  Plugs are clean and the engine runs smoothly.
>
>Aircraft have run LoP for decades without GAMI injectors, so test the
>engine before you hurry to pay the cost.
>
>Robert M. Simon
>ES-P N301ES
>
>From: Danny Miller [mailto:danny.miller@verizon.net]
>Subject: RE: How do I run lean of peak?
>Gary, et.al,
>I certainly can=B9t speak to what others are getting but I have GAMI
>injectors and my engine has been flow balanced.
>--
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