A4 Cabriolet Mk2
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Transmission ratio | = | No. of teeth on driven gear | : | No. of teeth on drive gear |
Ratios | Formula | ||
iG | = | Gear ratio | ZG2 : ZG1 |
iA | = | Axle ratio | ZA2 : ZA1 |
iov | = | Overall ratio | iG x iA |
Example: | 6th gear | Final drive |
Drive gear | ZG1 = 41 | ZA1 = 9 |
Driven gear | ZG2 = 23 | ZA2 = 35 |
Calculations: | ||
iG | = | 23 : 41 = 0.561 |
iA | = | 35 : 9 = 3.889 |
iov | = | 0.561 x 3.889 = 2.182 |