Two-Stroke Calculators

Shared Inputs

Fills the shared stroke / rod / crown inputs into the other calculators.

Exhaust Duration Calculator

Exhaust Duration (degrees):

Transfer Duration Calculator

Transfer Duration (degrees):

Blowdown

Blowdown degrees:
Calculated as (Exhaust Duration − Transfer Duration) / 2

Ignition Timing in mm Before TDC Calculator

mm before TDC:

CC Calculator

CC =

Corrected and Uncorrected Compression Ratios Calculator

Uncorrected: :1
Corrected: :1