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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˛. 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 canšt speak to what others are getting but I have GAMI
>injectors and my engine has been flow balanced.
>--
>For archives and unsub
>http://mail.lancaironline.net:81/lists/lml/List.html
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