Classic Instruments SN73Z-S1 Compatible with Holley Dominator/HP/Sniper/Terminator/Terminator X ECUs Classic Instruments SN73Z-S1

Bridge your gauges and modern engine management with one smart box. Zeus-Link™ reads CAN BUS data from Holley ECUs (Dominator, HP, Terminator X/Max, Sniper/Sniper 2) and GM OBDII ports to accurately drive Classic Instruments gauges—without a tangle of separate adapters. Connect up to six standard gauges and two auxiliary channels using any combination of sender inputs or none at all; if your ECU doesn’t output a value you want, you can still wire that gauge traditionally. The module includes warning and check-engine light outputs, a dash-light lead, and onboard diagnostic LEDs for power, BLE, and data status, plus a pass-through CAN port for additional devices. Setup and management are all handled in the companion app (App Store®/Google Play®): choose which gauges you’re running, assign inputs/outputs, view live values, and verify wiring. For maximum Holley compatibility on shared CAN harnesses, an additional resistor is available and Zeus-Link™ supports the extra Holley ECU connector when provided. It’s the cleanest, most flexible way to make your dash talk to your ECU.

Specifications:

Brand	Classic Instruments
Category	Body
Emission Code	6
part type	Gauge Sensor Module
Product Type	Adapter
Sub Category	Control Modules
Warning	California Proposition 65
Brand	Classic Instruments
Category	Body
Emission Code	6
part type	Gauge Sensor Module
Product Type	Adapter
Sub Category	Control Modules
Warning	California Proposition 65
Features	Warning and check engine light outputs on the Zeus-Link and external contacts to light a dash light System queries vehicle upon installation to determine what list of parameters can be obtained from the vehicle and used as inputs to gauges Holley harness has additional Holley ECU connector for other devices All instruments can be driven traditionally through proper senders if vehicle ECU does not support an output the driver wants to monitor The app has easy diagnostics, displays values being received by Zeus-Link and will allow user to cycle gauges to predetermined positions, to verify correct outputs and wiring Dash light connection All gauge connections to Zeus-Link (power, ground, signal, dash lights) The app has a virtual gauge screen, aligning with the dash instruments Compatible with all Classic Instruments sending units and gauges Spaces for 6 standard gauges: speedo, tach, fuel, oil, volt, temp, and 2 auxiliary gauges of the customers’ choosing Pass-through CAN port connection for other CAN devices Harness plugs direct into Zeus-Link and then to Holley ECU or OBD Additional resistor dongle available if needed to use multiple Holley CAN devices on the same harness The app is used to configure by choosing which gauges a customer has in the dash and how each gauge gets its signal Set up and managed all through an app available on the App Store® or Google Play® On-board diagnostic lights give status of power, BLE, and data on the circuit board for Zeus-Link