GPS SPEEDOMETER INSTRUCTIONS
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White
4-
1/2” 160 MPH Speedometer
26-610
26-610W
4-
1/2” 200 MPH Speedometer
26-611
26-611W
3-
3/8” 160 MPH Speedometer
26-612
26-612W
3-
3/8” 200 MPH Speedometer
26-613
26-613W
The Holley GPS speedometer is designed to utilize GPS satellite positioning to provide a variety of functions and does not require a
transmission sensor for speed measurement.
IMPORTANT! Disconnect the battery prior to installation!
WIRING DIAGRAM:
1.
Connect speedometer power requirements as shown above.
2.
Plug GPS receiver antenna into back of speedometer. (Make sure it is firmly pressed in for a good connection.)
3.
For best performance, mount GPS antenna with as much view of the sky as possible (preferably on the roof of the vehicle). The
GPS antenna is waterproof and magnetic. If the car’s roof is not accessible then mount the antenna on top of the vehicle’s dash
with as much exposure as possible to the sky through the window. (Antenna is able to receive signal through some thin materials
such as wood, glass, fiberglass, and plastic. All types of metal will block the signal.)
4.
Using the Hot Start feature is optional. Hooking up the Hot Start wire to co12volts allows GPS to quickly acquire satellites
in less than 2 seconds. This feature saves your current satellite position within the speedometer enabling it to quickly restore your
position on power up when speedometer has been powered off for 4 hours or less.
Please note that if the speedometer has been powered off longer than 4 hours, it could take up to 1 minute to acquire
signal due to the satellites moving significantly from your location. This is normal.
