From JP Instruments EDM700

http://www.chiefaircraft.com/cgi-bin...struments.html

Engine Data Management 700 - EDM-700

JPI EDM700-4C Engine Data Monitor 700, 4 Cylinder, JP Instruments $1253.75
JPI EDM700-4C-FF Engine Data Monitor 700, 4 Cylinder with Fuel Flow, JP Instruments $1827.50
JPI EDM700-6C Engine Data Monitor 700, 6 Cylinder, JP Instruments $1865.75
JPI EDM700-6C-FF Engine Data Monitor 700, 6 Cylinder with Fuel Flow, JP Instruments $2439.50

So anything from roughly £737.00 to £1434. You then need to hope you dont get nabbed by customs and charged any extra tax and then find yourself a friendly engineer as IO540 says to fit it!!!!


I Like this one though :)

http://www.chiefaircraft.com/cgi-bin...htSystems.html

AF-2500 Monitoring and Engine Data System

AFS 2500-B4FMC Engine Monitor AF-2500 Black Bezel, 4 Cylinder, Carbureted, Advanced Flight Systems $3495.00
AFS 2500-B4FMI PHOTO Engine Monitor AF-2500 Black Bezel, 4 Cylinder, Fuel Injected, Advanced Flight Systems $3495.00
AFS 2500-B6FMC Engine Monitor AF-2500 Black Bezel, 6 Cylinders, Carbureted, Advanced Flight Systems $3695.00
AFS 2500-B6FMI Engine Monitor AF-2500 Black Bezel, 6 Cylinders, Fuel Injected, Advanced Flight Systems $3695.00


Julian.

There is also Electronics International

http://www.buy-ei.com/

whose stuff - particularly the EGT probes - appears to be better.

I have had two JPI EGT probes fail in 3 years. Usually this will be obvious (a silly EGT but with CHT looking OK)

I am not fantastically impressed with their "Pilot's Manual" though...

On my engine (IO-520BB) the difference in fuel flow between flying LOP and ROP will pay for the overhaul cost of the engine at TBO.

My current engine was overhauled by a company that gives one EXTRA year of warranty on the engine if it was flown LOP (very easy to see if they open it up).

So the price of proper engine monitoring is really secondary to the savings already made.

One major safety benefit: when LOP the engine produces no CO in the exhaust.

Carbureted engines can be made to run smooth LOP in some cases, use some carburetor heat to improve fuel volatilization.