Convert your dial gauge reading in millimeters into degrees BTDC. Useful for timing aftermarket CDI stators by measuring piston position before Top Dead Center (TDC).
Note: This gives a great starting point, but ignition timing should always be tested and adjusted based on real-world performance. Final adjustment is best done with the stator case off while observing spark timing and throttle response.
This calculator assumes a general flywheel size of 377mm (PW50 CDI flywheel). If you're using a different flywheel, update the value above.
