Engine Builder Calculator
Calculez la cylindrée, la vitesse moyenne du piston et explorez les rapports puissance/cylindrée.
✔ 100% free
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Displacement and piston speed
Displacement per cylinder = π ÷ 4 × bore² × stroke × cylinders. Mean piston speed tells you how hard the engine works mechanically.
- Street engines : piston speed under ~12 m/s is safe for reliability
- Race engines push 22–25 m/s with special components
- Bigger stroke raises torque but limits safe RPM
- Bigger bore raises RPM capability and high-end power
FAQ
2 × course × régime ÷ 60 000, en m/s. C’est le meilleur indicateur de contrainte du bas moteur.
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