Tach Adapter

Technical Specifications:

• Brand: MSD Ignition (Holley Performance)

• Part Number (MPN): 8910

• Product Type: Tach/Fuel Injection Adapter

• Compatibility Type: Non-Current Limiting Ignitions

• Input Signal: White Wire Trigger (from MSD 6 or 7 Series)

• Output Signal: Simulated 12-Volt Square Wave

Performance & Fitment Features:

• Signal Conversion: Engineered to convert the trigger signal from an MSD Ignition control box into a standard 12-volt signal required by factory voltage-triggered tachometers and electronic fuel injection (EFI) systems.

• System Integration: Specifically designed for vehicles originally equipped with a ballast resistor, standard points, or optical trigger distributors.

• Direct Splicing Required: Installation mandates splicing the adapter directly into the MSD white wire trigger loop and a switched 12-volt ignition source to bypass signal interruption.

Federal Emissions Compliance (CARB):

• Emissions Code: 5

• Status: This part does not alter or modify the vehicle's emissions control systems. It is strictly a signal interpretation component and is legal for sale and use on all vehicles, including emission-controlled vehicles in all 50 states.

Disclaimer & Warranty Information: Onyx Customs FL acts exclusively as an authorized retailer of high-performance automotive components. We do not manufacture this product. The MSD 8910 Tach Adapter integrates directly into the vehicle's primary ignition wiring and fuel injection pulse systems. Modifying vehicle electrical systems carries extreme risk. Improper wiring or failing to disconnect the battery prior to installation will result in electrical shorts, catastrophic ECU failure, permanent instrumentation damage, or total vehicle loss. Onyx Customs FL assumes no liability for direct or indirect damages, injuries, or vehicle malfunctions resulting from the purchase or use of this component. All manufacturing defects, technical support, and warranty claims are strictly the responsibility of, and must be directed to, MSD Ignition (Holley Performance). We strictly mandate that all electrical components be installed and calibrated by a certified professional automotive electrician or race mechanic.