Software design of a bike?

I have a fun adventure when using a motor, and I feel that when I made an engine, frame and swing arm sample. He spent a lot of costs, because there are errors in the process of trial for ever. I think the chlorine motor design software and a Virtual machine (computer program). Then the potential and the model error that I can minimize or even in terms of cost. Because after the withdrawal engine I tested new programs is a real engine, and I do not worry too dissolution of the engine often spend a lot of money.