Algodoo

didn't you know that collisions are better with more density? You should make the pistons of density 50, the rods of density 20 and the flywheel of density 100 or more. then you can add more strenght to the springs

the problem is that it dosent work the way i want it too. its really really slow.

That's the solution xD
if you see it the flywheel spins fast and then slow and then fast again. that's because you don't have enough weight.
Really, try what i've said. Then you can add strenghten the springs and make it faster/stronger

Weight is everything in Algodoo. it took me a while to figure that out. Once I did my scenes got much better.

Also with this type of spring engine set the legacy mode of the springs to 2 in the script menu. This makes the engine not explode at high RPM and/or high spring constant.
And you should at least turn up the sim frequency to 100 in the option menu.
And get rid of restitution on EVERYTHING! it just makes colliding objects more stable and not so bouncy and jittery.

I think thats about everything haha!

THANKS, i saw a great improvement in preformance. il keep expirementing and then reupload it onna vehicle.