i did a 3 and 5 speed gearbox, i think the 1st and 5th gear are messed up though because the gears are squares in a tessellation to save parts. my motors don’t really work anymore because the explosion image changed from a subtle circular bang to a massive fiery explosion. my latest engines using thrusts can push about 2200 rpms though. i was thinking about doing a legit 5 speed gearbox with dog clutches and a shift lever etc, but the roblox character is essentially useless at manipulating controls. really cool. we should work together on something.
We could always “Simulate” the explosions that push the pistons. So basically have a small particle effect for show, and just have a body force of a certain amount to push it.