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View Full Version : Too much crawl ratio?


FINOCJ
October 21st, 2020, 10:31 AM
Always lots of discussion about CR and how much gear reduction is needed....thought this piece of artwork sums it up well:

https://www.youtube.com/watch?v=5q-BH-tvxEg
derf
October 21st, 2020, 11:03 AM
The best crawl ratio really depends on the engine and transmission you are working with. Also the terrain you're driving on. I had a JK with a manual and a 4 speed Atlas with a combined 238:1. It was great for slow crawling with an engine that doesn't make good low end torque. But if I was mudding and wanted wheel speed I wouldn't want anything like that.
Spieg
October 26th, 2020, 08:48 PM
The best crawl ratio really depends on the engine and transmission you are working with. Also the terrain you're driving on.
Tire size also figures prominently into the equation.
FINOCJ
October 26th, 2020, 09:15 PM
Going to be a bit snarky here, but you are missing the point of the post....I just thought it was a cool piece of machinery art that utilized gear reduction.
derf
October 26th, 2020, 09:31 PM
Tire size also figures prominently into the equation.

Quite true.


Going to be a bit snarky here, but you are missing the point of the post....I just thought it was a cool piece of machinery art that utilized gear reduction.

Try this one.

https://youtu.be/QwXK4e4uqXY
Jim
October 26th, 2020, 11:50 PM
It's in the comments that each vid shine.