Talked to someone at Off Road Evolution about the installation requirements necessary for adding air bump stops with a coilover suspension - adds another bracket apparently. They seemed disturbed that I was considering airbumps and instead suggested that I consider a Double ThrowDown System, stating that the bypass shock could be tuned to "behave/act" like an air bump stop.

I'm very confused now.

Why are folks running the EVO system with air bump stops rather than the Double ThrowDown if the latter is the recommended approach? I don't plan on doing Baja runs at 80mph - just moderate to heavy rock crawling, and trail riding. Plus, I'd like a nice ride while heading down the highway.

Below are a few pics I found of the RockStop Airbump Kit being installed with the EVO coilover system. I thought that's what I wanted in terms of the appropriateness for my intended purposes, but now am completely uncertain. Was ready to pull the trigger for both front and rear EVO system, but will not be purchasing anything until I can get this sorted out as, at least to me, this is a very expensive upgrade and I don't want to blow it by choosing the wrong product.

Is their another coilover system less complex, and more straightforward than the EVO system. I feel as though I'm back to square one. Would appreciate any help, counsel, or advice that can shed light on this technical matter. Thanks.

 

Found another pic of the EVO coilovers / air bump combo:

 

I would consider the double throw down system, if i was more of a desert or high speed driver with my jeep. But my jeep was meant to be a crawler. I looked at EVO's stuff a long time, and decided to go else where for a suspension system. Rock Krawler provided me with ridicules under body clearance, and solid steel construction.

Bump stops... OMG i went back and forth on this for a while. We first did the JKS Acos PRO rear system, and it didn't work out very well. There is a myriad of other solutions out there from neoprene extension plates, to neoprene bump stops. For the front, there is in coil bump stop systems, and bracket + can systems like the EVO. I wanted a Air/Nitro Bump, so i went with the EVO brackets (Seriously because of the EVO etching and out of the box weld on install), and custom KING air bumps in Black. The install price was just as much as the Bump Stops... but it's solid and i don't have to worry about it.

Front

Rear

Rear

 

Thanks for the input - most of the pics I am finding of installed coilovers often indicate the presence of air bumps too.

 

Air Bump.

 

I wish someone, maybe Mel, from Off Road Evolution would weigh in on this. This does not sound like a typical answer from them. I would really like to know their thoughts on this. Front coilovers are on my short list, and after reading this, i would like some clarification.

After i get the PSC steering, the OR Evolution front coilovers are next. I was planning on getting the bump stops also. Do i have to rethink?

 

if you can afford to get the double throwdown which is a triple bypass system, you can set it in such a way that the last bypass acts like an air bump. if you just get the standard coil over system, you will still need to have a bump stop or optimally, an air bump.

 

How much more expensive is the double throwdown? You say, "YOU can set it in such a way that the last bypass acts like an air bump." Is that something that i can do myelf, or is it something that i would have to specify when ordering so they can set it that way.

I know i can easily call and find this stuff out, but im not ready to place an order now, i dont want to bother those guys while they are working on stuff, and i figured others may find this info useful.

 

yes, it is something you can set yourself but, when ordering it, i would just have them set it accordingly.

 

I have a double throw down system front and rear. Nearly all of my driving is highway so when I had the system installed I did not have a rear bump, but after running fast off road it would really bottom out in the rear so I had EVO install the rear bumps, It is WAY better now.

WOL is right, I could have stiffened up the rebound of my bypass but then I would get a stiffer highway ride which would defeat the main purpose of why I got this system.

This EVO system is so well thought out and engineered that I firmly believe that nothing else out there comes even close. Yes, it is expensive but is worth every penny and I will do it again on my next Jeep.....

Just call the shop and talk with them about your requirements they are not pushy and really want to do what is right for YOU.

Don't worry about bothering them because you are not! This is their business and they welcome the opportunity to help.

Curtis