Engine \"Modelling\" Program..anyone have the URL? There was a link offered up by someone some time ago for a down loadable engine program .....I think it was about a year ago..not sure though....I've done the searches here but can't come up with anything...does anybody have the URL or name of the program. It was extremely cool and I lost it when my laptop had a major malf. TIA for any help. Oooops..should have put in more info. I'm after the one that enables you to model any engine, its very flexible and has [censored] tins of default info built in for cams, headers, etc..it gives the hp and torque figures and allows you to check them against your last change.