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 car engine has a range of rpms it’s happy with which the gears transfer through a ratio to the wheels. In high gear at low speed the engine would have to go too slow and would probably stall.
The gears give an output of low speed, high torque in low gear and high speed, low torque in high gear. This is why switching down a gear increases acceleration. Starting off takes a lot of torque at low speed so a low gear is better; normally: on ice you might be better up a gear or two because torque will make the wheels slip. Normally high gear at low speed will require slipping the clutch if you don’t stall.
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