Everyone feel free to post your engines here.
heres one of my older ones. check my saves for all of mine.
LoadSaveBlock(59075);

LoadSaveBlock(126583); Turbo Version
LoadSaveBlock(126163); naturally Aspirated model

I'm making a 16 valve dohc turbo engine right now and i will post it later tonight.

Not bad at all sparkjet, I like how you use a fuel tank rather than clone, I'm trying to work on some fuel injectors that use portals and a tank, Its being difficult and fuel is distributing unevenly
here my 16v engine I had to retain the small exhaust ports to keep the back pressure high so the fuel would ignite properly. I tried using spark rather than creating arcs for spark plugs. I will convert this to arc sparkplugs so the fuel is burned properly.
LoadSaveBlock(129105);
Also , do you guys think I should incorporate some sort of speed control, I can start working on something like that for these styles of engines.