Eli5: Why reverse in cars sound so strange?

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It’s just transmission directing the same power/movement, but through different placed gears (?) So why does it sound so strange

In: Engineering

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Anonymous 0 Comments

Straight cut gears vs helical gears.

Straight cut are cheap but noisy so we throw them in reverse, they are also really strong which is why a lot of race care make horrific noises.

Helical cut gears have a smoother silent power delivery.