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Kuinka laskea Gear Ratio Auto

Mikä on Gear Ratio Auto?

Calculates transmission gear ratios affecting acceleration, engine RPM, and fuel economy at cruising speed.

Vaiheittainen opas

  1. 1Calculate RPM at given speed: (speed × 5280 × 60) ÷ (wheel circumference × 12 × 3.14159 × ratio)
  2. 2Final drive ratio multiplied by transmission ratio
  3. 3Higher ratio = more torque multiplication, lower speed capability
  4. 4Overdrive ratios <1.0 for efficiency

Ratkaistut esimerkit

Syöte
Final drive 3.55:1
Tulos
Rpm multiplier

Yleisiä virheitä vältettäväksi

  • Assuming higher gear count always better (depends on driving)
  • Not considering RPM at highway speed (affects efficiency/noise)

Usein kysytyt kysymykset

Why do some cars have more gears?

More gears allow optimization of acceleration and cruising; modern 8-10 speed improves efficiency 5-10%.

What's the difference between 3.55 and 4.10 rear diff?

4.10 accelerates faster but cruises at higher RPM and lower MPG; 3.55 is efficiency oriented.

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Asetukset

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