I revised a lot, and I think this is the accurate one. Specifications: Engine Capacity: 2.753 cc, Bore x Stroke: 86 ...

This is a bigger, redone version of my original Radial 12, I basically upscaled it a lot, lowered its redline a lot, ...

It took me 2 days to get the right sound also run this at 12000 Khz if you want the best sound makes almost stock hp ...

This giant radial 7, which was me slicing the other 21 cylinders off of my Wasp Major and then tuning to hell and bac...

This big 5.5 liter flat 6 is a modified Franklin O-335 aero engine that Tucker used in the Tucker 48 aka the Tucker T...

I added another rotor to the previous model, now it makes over 1900 ft-lbs of torque and over 900 hp. Its crazy, I al...

This started as an experiment on combining a Wankel crank and rotors with a normal reciprocating crank, conrods, pist...

This is the engine I made this morning. 3 liters, 800 or more horsepower, I had to turn the sim frequency down to 600...

I made this while trying to make an engine with counter-rotating crankshafts. I gave up after realizing that I couldn...

I made this today, its 83 cubic inches, 4 cylinders, uses the Hayabusa bore and stroke, and the crankshaft is about 3...

This thing is wacky 2 cylinders fire at the same time it sounds amazing and makes 850 HP at 15500 RPM this thing revs...

[Updated on 05 May 2023] The R-4360 was Pratt & Whitney's last aircraft piston engine, as well as the largest and the...

[Updated on 05 May 2023] This was among the largest piston engines ever successfully produced. Design began in early-...

[Updated on 02 May 2023] Napier’s unusual H-shaped engines were originally designed in 1928 with 16 air cooled cylind...

597 cc. 2300 idle RPM. 3500 max RPM. For all your scooter needs. Gives roughly 20-30 HP. yes, sounds bad, but just im...