Algodoo

Yes in this any stroke much longer than the diameter of the spawned balls is
totaly wasted

This is better but it has several problems
1 the box the crank is hinged to collides with the piston easy fix
2 the spawned circles need to be bigger try.21 also move the killer down
3 select the whole thing and set restitution to 0 you dont want bouncy parts
4 the piston needs to be slightly longer than the bore for stability and the rod
should be longer and hinged to the center of the piston or close to the center
5 needs more flywheel weight
6 the spawn box needs positive stops so it cant fly out of position up or down
I tried to "fix" it but realy couldnt without a complete rebuild
keep working on it, I'll help

@ PooPing your scene is still here

I agree with pfeff all major or crittical parts should be boxes or circles
you can use polygons for decorative parts that dont collide with anything
I uploaded a response that works fairly well without realy changing the base design
exept for the piston but to make a nice engine you need to do another build from scratch

Runs pretty nice with a spawned circle radius of .22

Very nice

If you dont delete the box with the hint before starting the sim the engine goes away

Dodge Charger not sure on the year

Yep

The green verticals are whats stuck just loosten them then fixtate back to the bed
and yea it blows up for me too

Good one

If its not a charger then it must be a 71 Plymouth Cuda only year with four headlights

Nice Vehicle

HMM at least I had the make right

Needs some work but it does run

The fluid should travel around the outside of the gears

1969 Pontiac Firebird TransAM

Cool

WooHoo I like how you capture the essence of the cars with a relativly
low detail drawing
A new model Camaro would be nice

Very cool best hit and miss govenor I have seen 10/10

Nice engines 30/10

Nice smoke effect

ITS NOT DONE

Just hit enter to kill the ignition and its exactly what you want?
the link is in the forum

Thanks for the comment I fixed it

nice artwork its good to see a girl on here

COOL semms to work fine in 1.8.5

Very nice so far 10

MASSIVE awsomeness 10/10+
Not only does it work perfectly it looks great

Thanks Someone Else in my tests it does work in 1.9.8b but laggs pretty bad
it works perfect in 1.8.5 with no lag on my comp