In year 2000 I started building a Lamborghini engine. This was the biggest model in size I ever made.
Back then all the dimensions I had was the bore/stroke. Using that I guessed the aproximate size
of the engine. The entire model is made of cardboard (except the crankshaft, that is made from a
thick wire). The crankshaft and the pistons are working, however the firing order is wrong.
The building of this model took almost a year.