1
Engine Mechanical / Electrical / Tach reading high - where to start troubleshooting?
« on: March 20, 2018, 09:49:20 AM »
My tach is reading incorrectly, based on the high RPMs that I'm seeing that don't line up with the impeller and horsepower curve. My tach is showing 4800 RPM at full throttle but I'm running a heritage AA impeller with a 325HP BBC.
So, where do I start? Re-wiring? Replace the tach?
So, where do I start? Re-wiring? Replace the tach?