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Gary,
The salesman at E-MAG told me that the improvement with 1 P-Mag (they no longer make the E-Mag) is 70% of what it would be with both P-Mags.
If I had the money at this time, I would put 2 P-Mags on my plane. The total cost would be $2,800. The price for 1 P-Mag is $1,100 or $1,300 depending on weather you change the impulse coupled side or the direct mag.
Don't forget that you also get to use automobile spark plugs.
Lorn
On Nov 12, 2010, at 6:01 AM, Lancair Mailing List wrote:
From: Gary Casey <casey.gary@yahoo.com>
Date: November 11, 2010 1:24:31 PM EST
I haven't been following this thread in detail, but I have a few questions and a comment:
I certainly agree that the ability to increase spark advance at low manifold pressures gives a substantial improvement in efficiency. But how much improvement does a single electronic ignition give compared to a dual system? The only answer I've been given is "about half." That makes sense, I suppose, but is there any data out there to support that? Most of my long flights are at about 12,000 feet, so I expect some improvement over dual mags.
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--
Lorn H. 'Feathers' Olsen, MAA, ASMEL, ASES, Comm, Inst
DynaComm, Corp., 248-345-0500, mailto:lorn@dynacomm.us
LNC2, FB90/92, O-320-D1F, 1,750 hrs, N31161, Y47, SE Michigan
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