Lingenfelter L460040000 Lingenfelter RPM-002 RPM Activated Switch Instructions v2.3 - Manual (Page 5)

Page 4 of 8
Most GM V8 electronic fuel injection (EFI) engine applications including L98, LT1 and LT4 engines (connect white
Tachometer Input Signal to ECM/PCM TACH output)
•
7200 RPM switch point example
o Sixteen position Input Signal Pulse Per Revolution switch set to Low Range and 4 pulses per revolution
o RPM programming switch for thousands of RPM (X000) on position 7
o RPM programming switch for hundreds of RPM (0X00) on position 2
Most traditional single coil V8 engine applications (connect white Tachometer Input Signal wire to the coil negative
terminal)
•
7200 RPM switch point example
o Sixteen position Input Signal Pulse Per Revolution switch set to Low Range and 4 pulses per revolution
o RPM programming switch for thousands of RPM (X000) on position 7
o RPM programming switch for hundreds of RPM (0X00) on position 2
Most modern sportbike motorcycles including all years of the Suzuki GSXR-1300 Hayabusa, all years of the Kawasaki ZX-
14 and 2002 and newer Suzuki GSXR-1000 (connect white Tachometer Input Signal to one of the coil negative terminals)
• 14
,500 RPM switch point example
o Sixteen position Input Signal Pulse Per Revolution switch set to High Range and 0.5 pulses per revolution
o RPM programming switch for thousands of RPM (X000) on position 4
o RPM programming switch for hundreds of RPM (0X00) on position 5
Installation notes:
• On most engines the Tachometer Input Signal wire can be connected to one coil negative terminal or wire (may have 1,
2 or 4 individual coils - just connect to one of these). Start at 0.5 pulse/revolution. If the RPM reads double, switch to 1
pulse per revolution.
• If connecting to an older vehicle (including motorcycles with analog ignitions and solid core spark plug wires),
interference may occur. If this happens modern noise suppression spark plug wires and spark plugs MUST be used.
• If connecting to an MSD or other multi-strike ignition system you will need to connect to the tachometer output terminal
on the ignition system. Refer to the user manual of your ignition system for output location and pulse frequency.
• On odd fire engines such as Harley Davidson engines connect to one coil and use the single cylinder (0.5 pulse per
revolution) mode setting.
For additional product installation information and technical support, contact LPE or your LPE
products distributor. You can also find technical support and usage discussions regarding this
product and many other LPE products in our Internet forums:
http://www.lingenfelter.com/LPEforumfiles
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