DRIVETRAIN LAB
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DRIVETRAIN LAB
Manual transmission simulator

How to drive a manual

Every movement you see is driven by a real-time physics model of the engine, clutch friction, gearbox synchronizers and the car's mass.

Controls

  • A / ← Clutch pedal
  • S / ↓ Brake pedal
  • D / ↑ Gas pedal
  • Shift + pedal key: partial press (clutch holds at the bite point)
  • Mouse: drag the gear knob through the H-gate
  • I Ignition   H Handbrake
  • 1–5 Camera: overview, engine, clutch, gearbox, differential
  • X X-ray   L Labels   F Power flow   T Slow-mo   P Pause

Pull away

  1. Press I to start the engine (in neutral).
  2. Hold A: the clutch disengages.
  3. Drag the knob up-left into 1. Watch the synchro ring glow as it matches speeds.
  4. Release the handbrake with H.
  5. Hold a little gas (Shift+D) and let the clutch up slowly: tap A or hold Shift+A at the bite point.
  6. Once the car rolls, release the clutch completely.

Release the clutch too fast and the engine stalls. Shift without the clutch and the gears grind.

Parts carrying engine torque Engine braking (wheels driving the engine) Fresh air-fuel charge Combustion