Engine Lab

Every engine sim, one page.

All 19 engine simulators, grouped by family. Each one solves its real equations in the browser — thermodynamics, kinematics, even the sound.

Engine fundamentals

Torque vs PowerShape a torque curve; the power curve is computed, never drawn.
Ignition Timing & KnockChase MBT while compression pushes the knock limit toward it.
Air–Fuel RatioOne mixture slider; power, economy and exhaust temperature disagree.

Piston engines

The Four-Stroke CycleRun a cutaway cylinder and its live PV diagram from one crank angle.
Otto vs Diesel vs Two-StrokeThree cycles side by side off one crank driver.
Crank & Piston GeometryBore, stroke and rod ratio vs piston motion and side-thrust.
Cylinder ConfigurationsI4, I6, V6, V8 and boxer: firing order and shaking forces.
The Sound of EnginesHear why a V-twin gallops, a four drones and a cross-plane V8 burbles — synthesised from the firing intervals.
Camshaft & Valve TimingGrind a cam and watch the torque curve and idle pay for it.

Jet engines

Drivetrain

Gears & the GearboxFive gears, one sawtooth — tractive force vs the drag curve decides everything.

Electric drive

The Rotating Magnetic FieldThree currents out of step make one spinning field — load a rotor and watch it chase.

Rockets

The Ideal RocketBurn a real stage — F-1 to Raptor — against the tyranny of the rocket equation.

Marine engines

Marine Engines: Ship vs CarOne bore slider from hatchback to 80 MW two-stroke.