06-12-2019, 10:41 PM | #11 | |
Not Yet Wild
Join Date: Jun 2018
Posts: 21
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Re: 4 Link / 3 Link Rear Suspensions
The biggest reason I want to switch to a 4-link setup is the stock leaf spring suspension is soooo stiff and bouncy that the cart is truly unpleasant over even small bumps. I'll be able to properly tweak the spring rate/stiffness with a 4-link and coilovers.
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06-13-2019, 05:47 AM | #12 |
Gone Wild
Join Date: Jul 2017
Location: East Central Missouri
Posts: 1,955
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Re: 4 Link / 3 Link Rear Suspensions
Good luck with your build slonomo. Designing is the toughest part.
Several local friends are big into the rock crawlers and have some pretty elaborate four link suspensions. The one thing that is extremely noticeable on all the vehicles is a large amount of body roll even at low speed. When they run a race on a closed course motocross type dirt race track it looks like a bunch of drunk Irishmen racing down a cobblestone street. Bobbleheads on four wheels. Not too scary if you have a wide axle track and a three point harness. You might consider integrating a moderate size sway bar in your design. |
06-13-2019, 03:13 PM | #13 |
Searching for The Way
Join Date: Oct 2009
Location: Medina, Ohio (NEOHIO)
Posts: 11,436
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Re: 4 Link / 3 Link Rear Suspensions
I'm not really looking for rock crawler type articulation. What I really am interested in is better ride and suspension action on rough terrain. I want a little bit of independent articulation, just enough to drop one wheel into a rut while the other wheel is able to stay put or even move up.
Here are my basic goals: 1.) rear wheel articulation 4-5" up or down independent of the opposite wheel 2.) rear suspension travel about 8" total 3.) ability to set the suspension up in the middle of travel (4" up/4" down) 4.) good amount of suspension movement with two people on cart, no cargo 5.) have a suspension stiff enough to not bottom out off road |
06-13-2019, 03:15 PM | #14 |
Searching for The Way
Join Date: Oct 2009
Location: Medina, Ohio (NEOHIO)
Posts: 11,436
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Re: 4 Link / 3 Link Rear Suspensions
Does anyone have any videos of their rear link style suspension in action?
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06-13-2019, 04:25 PM | #15 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,406
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Re: 4 Link / 3 Link Rear Suspensions
Sorry no but I will give you this. If I did it again I would not tip my coil overs inboard. I did so because I was worried they would be too stiff vertical. And stiff was what I was trying to get away from. But as mentioned above i get a lot of body roll, especially with 2 people on board.
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06-13-2019, 04:50 PM | #16 | |
Just Gone
Join Date: Sep 2015
Location: North Carolina
Posts: 3,549
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Re: 4 Link / 3 Link Rear Suspensions
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06-13-2019, 04:57 PM | #17 |
Just Gone
Join Date: Sep 2015
Location: North Carolina
Posts: 3,549
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Re: 4 Link / 3 Link Rear Suspensions
Here's a few of my reverse- triangulated 4-link.
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06-13-2019, 05:17 PM | #18 | |
Searching for The Way
Join Date: Oct 2009
Location: Medina, Ohio (NEOHIO)
Posts: 11,436
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Re: 4 Link / 3 Link Rear Suspensions
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06-13-2019, 05:17 PM | #19 |
Searching for The Way
Join Date: Oct 2009
Location: Medina, Ohio (NEOHIO)
Posts: 11,436
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Re: 4 Link / 3 Link Rear Suspensions
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06-13-2019, 05:34 PM | #20 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,406
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Re: 4 Link / 3 Link Rear Suspensions
Angling the shock reduces their ability to carry weight or absorb vertical load. I hope I'm saying that right. Tilting them in board at the top (I think) makes for more stability. In the end I decided upon a panhard bar to eliminate any sideways movement I perceived. It works awesome off the road with the 25x10x10 dirt devils. You run across a field drinking from an open cup.
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