Retro Performance Engine Calculator is a simple app to allow you to calculate your engine size.

From your crank stroke and piston diameter and number of cylinders your engine CC is calculated.

Your Cylinder Head chamber size, Deck Height or Compression Ratio can be calculated.

This app helps you to decide what you need to do when assembling your engine to get the performance you want.

Please leave feedback if you use this app. We hope it's of use to people as we find it handy to have around.

此版本中的新功能：

Report any issues to info@retroperformance.co.uk

version 2.5 - fixed minor errors.

- added negative number ability for deck height thanks to feedback

- added more decimal places to deck when in inches format

- added rod ratio calculation

- improved layout for smsller screens

version 2.4 - added CI units for engine size thanks to feedback.