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
The gears refer to gear ratios, giving high mechanical advantage.
Low gears give a high mechanical advantage, so force from the engine is multiplied by a larger number, and the high force turns the wheel fewer times.
High gears do the opposite, force from the engine gets multiplied by a lower number, so there isna smaller force turning the wheels more times.
High gears are more efficient at high speeds because the engine doesn’t need to spin extremely fast to keep up with highways speeds. This is why your RPMs drop when you shift to a higher gear, the engine doesn’t need to spin as fast to maintain that high speed.
Low gears mean the engine doesn’t need to spin extremely slowly to keep up with slow wheels. Stopped is very slow speed, and it takes more force to start the wheels turning, but the engine can’t supply that force because it’s being reduced by the transmission.
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