On manual cars, Why can’t a car start in a higher gear?

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As the title says, I know that different shifts mean different gear sizes bein used, but I don’t understand why it makes you unable to start moving the car. I have been able to start a couple of cars on the 2nd shift as an experiment and I understand that I could damage the car and I do it just once for testing purposes but I don’t understand why I cannot do so on other shifts. To clarify, I mean start as in start moving the car and not just turning the car on. Thanks

In: Engineering

46 Answers

Anonymous 0 Comments

The speed required to keep your car above idle speed at a high gear like 5th gear would be around 20mph. So essentially your engine would drop to so low of an RPM that it would stall. It’s possible to get around this by riding your clutch. But that would be putting excessive wear on an expensive friction based wear item.

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