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Formula 1 engines are usually a very small displacement (as low as 1.5L) engine with a large number of cylinders (these days between 10 and 12). They have very little natural torque, so to produce the acceleration they do, they have to rev very high. A typical F1 engine will redline anywhere between 15,000 and 20,000 rpm. At such astronomical rev limits, these tiny engines are capable of producing over 700HP. In competitive terms, an F1 engine is not very useful anywhere below 8,000 - 10,000 rpm. As a result, the gearing in an F1 car is very close ratio, to keep the engine revs high and keep it in its powerband.
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