Active Suspension for Rockcrawling - Is it allowed? - 4Wheel & Off-Road Forums at 4Wheel & Off-Road Magazine 4-Wheel & Off-Road

Active Suspension for Rockcrawling - Is it allowed?

  
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Active Suspension for Rockcrawling - Is it allowed?

 
Dooleybro Dooleybro
New User | Posts: 4 | Joined: 05/09
Posted: 05/27/09
10:27 PM

I just finished making an active suspension system for my Jeep GC.  It is working pretty darn well offroad and I'm thinking of putting it on a tube buggy to compete.  It has a bunch of advantages over just axle winches / hydraulic bump stops. Are there any rules against using something like this?  Here are a couple clips:

Ever see a Jeep Dance?
Jeep Leaning up Hill
A look at the suspension hydraulic cylinders
A bit of offroading
Decent Slalom
What the Hell!!! Slalom  

 
turbosniper1 turbosniper1
User | Posts: 136 | Joined: 07/08
Posted: 05/27/09
11:48 PM

There are no rules that I know of that say you cannot run it.  You would have to check with the sanctioning body of the group you are looking to compete with, for example WEROC, or XRRA to be completely sure.  They have completely different rule systems for different classes of vehicle, but for a custom built tube buggy you are pretty much free to build as you please for any of them as long as you stay under a particular tire size.  Even that can be negotiable such as in XRRA where the only regulation for tires is that they must be factory built and not agricultural.  They state in their rules on page 18 that "manual suspension controls (i.e. forced hydraulics) are approved." http://www.xrra.com/Event%20Entry%20Forms/2008%20XRRA%20Rules%20and%20Regulations.pdf
So I say if you want to compete... check out the rules where you plan to compete, and GO FOR IT!!!  Good luck!  Also some words of advise... you might want to start in a lesser class than the unlimited buggies.  Those classes are full of the best rigs with the best drivers, it would be like jumping right into NASCAR after only driving go-carts at your local fun park.  Not trying to say your skills are not top notch... I don't even know you or your equipment.... I just know the current level of competition.  Hope my information helps you out a little.  If I can be of more assistance to you, feel free to hit me up on my e-mail at turbosniper1@yahoo.com
Good luck!
Matt  

 
Dooleybro Dooleybro
New User | Posts: 4 | Joined: 05/09
Posted: 05/28/09
06:08 AM

Thanks for the advice Matt.  I'll start with looking at the rules for the different groups that compete near me.  The biggest thing will be to build as much articulation as possible into the vehicle for the suspension system to take advantage of.  I've been 4X4ing my whole life but rock crawling looks like a whole new set of skills will be needed.

Seth
seth@dooleyauto.com  

 
4WOR Web Editor 4WOR Web Editor
Administrator | Posts: 2341 | Joined: 12/06
Posted: 06/03/09
04:31 PM

Very interesting...  
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Dooleybro Dooleybro
New User | Posts: 4 | Joined: 05/09
Posted: 06/03/09
07:33 PM

Thanks.  The system automatically adjusts the pressure on each wheel to be equal.  Even on uneven ground, the wheel that is in the wheel well will have the same pressure on it as the one nearly fully extended.  
Even better you can manually adjust different wheels to have different pressures.  For example:  If your right-front wheel was climbing up a rock you could force most of the weight to the left-front and right-rear wheels making the right-front wheel walk right up the rock.  You can adjust this side-to-side percentage with an in cab knob.
And of course you can lean into hills and up climbs.
Thoughts??  

 

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