Tuning an engine for maximum power previously required long trial-and-error
sessions on a dynamometer. With the LM-1, precise AFR measurement allows the
user to correctly adjust many variables- including carburetor jetting, fuel
injection, turbo fuel curves, etc.- without long and expensive dyno sessions.
The meter’s digital signal processing technology provides data on exactly how
rich or lean an engine is running at any load. The LM-1’s self-calibrating
circuitry also compensates for changes in temperature, altitude, and sensor
condition.
The instrument can sample and store the air-fuel-ratio and the other sensor
data internally in operation for later analysis on a personal computer. At a
sampling rate of 12 samples/second the instrument can store up to 44 minutes
worth of data in non-volatile memory. The data can be downloaded to a personal
computer using a standard serial port and viewed/analyzed by the included
software or any standard spreadsheet program.
The standard LM-1 includes a Bosch wide-band oxygen sensor and cable,
cigarette-lighter adapter, serial cable for PC connection, 9V battery, exhaust
bung and plug, CD and manual. The LM-1 ships with a Bosch sensor, however, it
can also function with other wide-band sensors, including Honda/NTK and VW
sensors.
Available accessories include auxiliary input cables, alligator-clip power
cable, exhaust clamp, analog output cable, and Aux. input expander. Additional
accessories include a dash-mountable display and AC adapter.
The LM-1 sells for $349.99, including the oxygen sensor (Bosch LSU4.2), 10'
sensor cable, 10' power cable, serial PC cable, and software..
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