In short, the Douglas DC-7 is considered the last major piston-engine, propeller-driven airliner in the US, with surviving ...

This prototype uses water cooling, PTFE rings, and 3D‑printed mounts to turn 200‑year‑old heat‑engine tech into a ...

Piston Engines: Keeping Your Cylinders Happy ... “Historically, cylinders which continuously operate at higher CHTs, say, 400 degrees Fahrenheit and above, for long periods, ...

American company will launch its first self-rotating engine in the future, a special model that will feature in a yet unknown ...

Both short-blocks have 4.500-inch bores with 3.76-inch strokes, custom milled pistons from JE Pistons to maximize compression and make full use of the stroke, with the long-rod block is using K1 6 ...

Stroked Engine, Piston Swap, And More - Question It. Fixing what your broke. ... For 350 whp on an SR20DET, you should be fine with the stock internals as long as the ECU tuning is good.

Breaking in a new engine is a way to condition the engine’s internal components for its role in the overall life of the vehicle. In particular, this “breaking in” allows the piston’s rings to properly ...

Together the three recipients will invest another $4 million to develop a 3-cylinder, 3-liter opposed-piston gasoline compression engine that could improve fuel efficiency by 50% or more on large ...