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Those running Evo 4.5 or 6.5" coil springs: HD or Plush. Your experience?

Chief_jeep

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I am going to throw my opinion in the mix from an off-road perspective with thoughts of a gladiator.

Coilovers in the front are a good idea- the weight stays consistent, therefore when tuning the springs and valving the weight changes are minimal in the front and allow for the suspension to stay in optimal.
The rear- the same thought can apply if you don’t ever change the rear weight. Otherwise I think it’s going to be a matter of change for daily, change for off road (spring weight/compression- not valving).-find a spring height and rating you like with the rear, and get the adjustable shocks tuned for the weight you run the most often. Then as you change weight you can dial up or down as needed when off road.

Adding hydro bumps is a win win upgrade. Can help right now with your current setup and have no negative effect with changing the front to Coilovers and whatever you choose in the
this is where I’m headed. My weight fluctuates but it’s only a few hundred pound. Not ideal for coilovers but with the adjustable coil I’m hoping I can stiffen it up enough. If I occasionally blow through the travel the air bump will save it.
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Yeah coilovers, long arms, tons, hydro would solve all the problems, but I'm working within parameters here.

Interesting. Washboard is basically non existent in my JT. What psi do you run off-road?
I was running 37 and now that you mention it, that may have contributed. I had chalked it up to the Falcon's digressive valving. I haven't had them on the 40s yet.
 

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Yeah coilovers, long arms, tons, hydro would solve all the problems, but I'm working within parameters here.


I was running 37 and now that you mention it, that may have contributed. I had chalked it up to the Falcon's digressive valving. I haven't had them on the 40s yet.
The final piece to that puzzle for me is coilovers. Just need to make a decision on what I want to do.

I run 28psi cold in my 40s for daily driving. On washboard and higher speed off-roading I run about 16-20psi and for rock crawling I like to run 9psi. I think you will have a much better experience if you significantly drop your psi. It'll be a night and day difference.
 
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I run 28psi cold in my 40s for daily driving. On washboard and higher speed off-roading I run about 16-20psi and for rock crawling I like to run 9psi. I think you will have a much better experience if you significantly drop your psi. It'll be a night and day difference.
Initially I had 37 all the way around with the 40" Pats. The ride was decent but occasionally you would feel the lugs. Went to 40 up front and 38 in the back. Completely smoothed out the ride and brought the tread pattern closer to the lines.

Recently made an octopus and used it twice on the trail so far between 15-20 but... not the place with chronic washboard syndrome, and not with my Falcon shocks. The RCs are pretty tame on washboards and that with street pressure.
 

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Initially I had 37 all the way around with the 40" Pats. The ride was decent but occasionally you would feel the lugs. Went to 40 up front and 38 in the back. Completely smoothed out the ride and brought the tread pattern closer to the lines.

Recently made an octopus and used it twice on the trail so far between 15-20 but... not the place with chronic washboard syndrome, and not with my Falcon shocks. The RCs are pretty tame on washboards and that with street pressure.
I know the Patagonias are designed to ride on the crest of the tire and don't sit flat but that still seems like a lot of tire pressure. But if it's working for you, then no need to change it.

I'm surprised the falcons don't handle washboard better.
 

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I'm surprised the falcons don't handle washboard better.
My experience is that they are made to be worked and don't respond well to small inputs. Also the rebound on the lowest(er) setting is obnoxious.
 
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Teraflex makes as spring retention kit.


How is this going?



I'm happy with my shocks (except for washboards.) It's really a spring issue right now, and coilovers are not in the equation ($$$) though I'm sure they'd fix the problem.
Spring retention kits are no good because that means the spring is not sized correctly so you end up with 0 preload, and that only allows for more impact force which leads to more damage.
 

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Spring retention kits are no good because that means the spring is not sized correctly so you end up with 0 preload, and that only allows for more impact force which leads to more damage.
I'll add a asterisk to this, spring or shock can be sized wrong. If your setup is using the shock as limit strap and the shock is to long then short springs can fall out, hence the spring clips, a better solution would be to use a limit strap to keep a little tension on the spring at full extension while also now moving the full extension force from the shock shaft to the strap, aka less shock abuse.

Those Dual rate and triple rate springs are designed with maintaining some spring pressure through out the travel range and prevent spring ejections.

This conversation just highlights how important it is to have all the parts and pieces working together.

Piro, i have been following your efforts you have quiet the setup, noticed you don't run straps (at least in the back), is that because you have the last rebound range of the bypass dialed in stiff and your spring still loaded at full extension? Are you worried about using the shock shaft as the limit strap?
 

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I'll add a asterisk to this, spring or shock can be sized wrong. If your setup is using the shock as limit strap and the shock is to long then short springs can fall out, hence the spring clips, a better solution would be to use a limit strap to keep a little tension on the spring at full extension while also now moving the full extension force from the shock shaft to the strap, aka less shock abuse.

Those Dual rate and triple rate springs are designed with maintaining some spring pressure through out the travel range and prevent spring ejections.

This conversation just highlights how important it is to have all the parts and pieces working together.

Piro, i have been following your efforts you have quiet the setup, noticed you don't run straps (at least in the back), is that because you have the last rebound range of the bypass dialed in stiff and your spring still loaded at full extension? Are you worried about using the shock shaft as the limit strap?
I DO run limit straps in the rear, as soon as I installed the pro-x upgrade I added limit straps.
 

rharr

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I DO run limit straps in the rear, as soon as I installed the pro-x upgrade I added limit straps.
Cool now that i look harder at your max travel post i see the black strap on the inside. I though all the cool kids run Red straps ;)
 
 







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