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.Recent changes:Report any issues to info@retroperformance.co.ukversion 2.1 - Feedback reminder added. We would like as much feedback as possible to ensure this works as everyone wants.version 2.0 - Added functionality to save and load engines. The application will create an engine name or you can type your own name.Select load from menu to open a saved engine.Long-click an engine in the list to delete.version 1.0 - First release.Content rating: Everyone