I tried to simulate a double-expansion engine, where the exhaust of the other two cylinders feed the intake of the la...

2L I4 engine with the i4 journal rod angles. Firing order 1&4-2&3. This thing is very responsive at RPM so you can re...

This thing revs to 16000 rpm and makes 800 HP it has the same firing order as a inline 5 but is a V10

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

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

[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...

Single cylinder from yamaha xtx 660 (supermoto) I tried my best to recreate this engine :D

[Updated on 02 May 2023] Frank B. Halford was a talented independent British engine designer of the early and mid-twe...

[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...

All weights are accurate and the valve timing is as accurate as I could make it. The power and torque curves are fair...

i made this engine just because i want to replicate the $18,000 Exhaust of @effspot's Toyota century, so i made the ...

i made this engine just because i want to replicate the $18,000 Exhaust of @effspot's Toyota century, so i made the ...