Post your side shot videos going over speed bumps at 15mph

B00mb00m

The Church of Cutting Brakes of Atlas-Front Digs
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I want to see what’s the best suspension built on here for soaking up a high speed sharp impact. Both tires should hit the speed bump at same time. Measure height of speed bump. I’m thinking 20 mph (edited from 15) so we have a standard speed.

What I have in my mind for a perfect suspension is to hit a speed bump like this and have very little body motion and the axles move up through up travel without imparting a bunch of force to buck the body / cab. Not sure to what degree is possible. I’m still working on my suspension so I’m not ready to post my own video.

Any takers?

First video: https://wranglertjforum.com/threads...-over-speed-bumps-at-15mph.87464/post-1806180
 
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bumpy-british.gif
 
I want to see what’s the best suspension built on here for soaking up a high speed sharp impact. Both tires should hit the speed bump at same time. Measure height of speed bump. I’m thinking 15 mph so we have a standard speed.

What I have in my mind for a perfect suspension is to hit a speed bump like this and have very little body motion and the axles move up through up travel without imparting a bunch of force to buck the body / cab. Not sure to what degree is possible. I’m still working on my suspension so I’m not ready to post my own video.

Any takers?

Wth-Like at the malls?(lol)
 
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I don't know that even a trophy truck would flat body run a speed bump that slow, normally takes 25 mph or so for me to get the suspension working flat in the JLU in rougher terrain (not 6" ledges like a speed bump) and that thing's probably close to 6k lbs.
 
I want to see what’s the best suspension built on here for soaking up a high speed sharp impact. Both tires should hit the speed bump at same time. Measure height of speed bump. I’m thinking 15 mph so we have a standard speed.

What I have in my mind for a perfect suspension is to hit a speed bump like this and have very little body motion and the axles move up through up travel without imparting a bunch of force to buck the body / cab. Not sure to what degree is possible. I’m still working on my suspension so I’m not ready to post my own video.

Any takers?

Give me some time to get mine driving again and I'll see what happens.
 
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I don't know that even a trophy truck would flat body run a speed bump that slow, normally takes 25 mph or so for me to get the suspension working flat in the JLU in rougher terrain (not 6" ledges like a speed bump) and that thing's probably close to 6k lbs.

Ah ok so it might take more speed, I’m open to suggestions. Ok I’ll take it up to 20 mph. Original post edited
 
Give me some time to get mine driving again and I'll see what happens.

Sounds good, I’m most interested in yall with tuned shocks how dialed you’ve been able to get it. And what’s the limit with a straight axle suspension?
 
I'm game but won't have time until next week to set it up.

Gotta scope the best mall speed bumps
 
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Sounds good, I’m most interested in yall with tuned shocks how dialed you’ve been able to get it. And what’s the limit with a straight axle suspension?

I know with mine, I can adjust between rough as an empty dump truck and a roly poly boat. And the speed that I can comfortably bash through speed bumps will vary greatly with the adjusters.
 
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I know with mine, I can adjust between rough as an empty dump truck and a roly poly boat. And the speed that I can comfortably bash through speed bumps will vary greatly with the adjusters.

I was thinking as soft as possible for this test but would be interesting to see the delta between the ends of the spectrum
 
I was thinking as soft as possible for this test but would be interesting to see the delta between the ends of the spectrum

A curious thing I realized late in the Moab trip was that I could travel the rough roads faster and with more comfort with higher damping than on my normal sports car street setting. I haven't had time since to play with this more.
 
A curious thing I realized late in the Moab trip was that I could travel the rough roads faster and with more comfort with higher damping than on my normal sports car street setting. I haven't had time since to play with this more.

Right now I only have the DSC on rears and I found similar thing that maybe soft isn’t the best for that good bump absorption. I’m playing around with it but it’s not intuitive to me.
 
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Right now I only have the DSC on rears and I found similar thing that maybe soft isn’t the best for that good bump absorption. I’m playing around with it but it’s not intuitive to me.

A few years ago, we had a visitor from out of town join us on a trail run. He had a late 60s Commando built for racing with big bypass shocks all around. I noticed how little articulation he had on the rocks. Talking about it with Blaine back at the time, he suggested that the tuning was likely set for high speed with lots of damping. In that environment with high piston velocities we should see the expected suspension movment.
 
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