hey, linkage, ive been looking through your scenes, and I see you like engines! Allthough engines are really neat, we are coming to the point where companies like Tesla are showing how they are obselete. (I think I spelled that correctly) So, maybe you could attempt to make an electric motor using magnets and scripts, or maybe even in unison with a petrol motor to make a hybrid?
I have a 2gb ram laptop and i can still use algodoo just fine, even on some larger scenes. I would STILL reccomend upgrading RAM. Maybe there is a way to allocate more of your memory towards algodoo to use for itself..?