Xtreme Products Accu-Tach Racing Tachometer

The Xtreme Accu-Tach digital tachometer will work with 4, 6 and 8 cylinder engines using an MSD ignition or a magneto. The Xtreme Accu-Tach is factory set for 8 cylinder engines and will function up to 15,000 RPM. This digital tach accepts any standard alkaline 9 volt battery to function for many hours of operation. For use with Magneto and Point Type Ignition distributors ONLY.

WARNING: It DOES NOT work with Electronic Ignitions that use a dedicated tach output wire such as MSD 6 Series and HEI.

When the display button is pushed after your last race, the Accu-Tach will display four numbers:

• 1st number is the highest RPM turned in the last race
• 2nd number is the low average RPM turned in the last race
• 3rd number is the high average RPM turned in the last race
• 4th number is the time in seconds your engine took to rev from your low average RPM to your high average RPM

The display button has three different functions:

• Starts the display cycle of highest RPM, average low RPM, average high RPM and ramp time
• Resets any stored information if held for more than five seconds
• Displays the engine's current RPM for fifteen seconds while engine is running

910-11781 Instructions (PDF)