The 1951 Hudson Hornet's Twin H-Power straight 6 cylinder engine. It's supposed to make 145 horsepower at 3800 rpm, b...

After some fiddling around with a two-rotor design I managed to get over 1,200 HP out of a mere 873 cc. The relativel...

Based on some experimenting I did with a 2 rotor, I took the 4-rotor example and changed it to make ridiculous power ...

This is a small V6 I've been tuning for the past few days. You can change the engine angle however you like, and the ...

idk how to explain also when you are revving should turn off ignition after it so you need to give it a little thrott...

This W18, or more correctly saying "triple six" is a pretty obscure engine. There is very little info available for t...

H22A was used on the Prelude and the Accord Euro/Type R. This was one of honda's high perfomance 4 cylinder which is ...

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

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...

Its not really offset crank, since with multiple cylinder banks you can't just move the crank position, I had to figu...

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] The XR-7755-3 is the largest, most powerful reciprocating aircraft engine in the world. Duri...

[Updated on 05 May 2023] In 1939, the Air Corps identified a need for flat, H-type engines for installation in bomber...