Big flex Idea

MATT4U · Post by **MATT4U** » Sun Aug 05, 2007 11:36 pm

Just doing some thinking the other day and had an idea to get some mean flex.

Using coil overs (BIG LONG ONES!!!!) have the point they attach to the axel (or at the top on the chassis) as an arm.

This is just a rough sketch to give an idea of what my thoughts are.

any comments on putting it into application

BIG_BOY · Post by **BIG_BOY** » Mon Aug 06, 2007 12:22 am

that would be very weak & easy to knock back & break off dew to the long distance from the mounting point to the wheel giveing the wheel alot of leaverage

& would need some sort of shockie between the arms & diff houseing other wise it would be like driveing with no shocks

MATT4U · Post by **MATT4U** » Mon Aug 06, 2007 12:26 am

BIG_BOY wrote:that would be very weak & easy to knock back & break off dew to the long distance from the mounting point to the wheel giveing the wheel alot of leaverage

& would need some sort of shockie between the arms & diff houseing other wise it would be like driveing with no shocks

on road you would have it pinned down.

and stregnth would all be in the mountings, this is just the basic idea

BIG_BOY · Post by **BIG_BOY** » Mon Aug 06, 2007 12:29 am

theres still alot of leveragee tho & with bit tyres evan if you mountings were bullet proof you wol probly just rip the houseing apart also i think you would need a truck with 2 alxes the same size as appose to an off set head witch counts me out the safaris are well off set

turoa · Post by **turoa** » Mon Aug 06, 2007 7:16 am

It looks very unstable to me. Remember, flex isnt everything.

PR · Post by PR » Mon Aug 06, 2007 8:03 am

BIG_BOY wrote:that would be very weak & easy to knock back & break off dew to the long distance from the mounting point to the wheel giveing the wheel alot of leaverage

& would need some sort of shockie between the arms & diff houseing other wise it would be like driveing with no shocks

If it breaks he could always rope it up again :lol:

MATT4U · Post by **MATT4U** » Mon Aug 06, 2007 8:03 am

turoa wrote:It looks very unstable to me. Remember, flex isnt everything.

Said who??? haha.

Just a thought, a few other reasons that it would never work have been mentioned. Good for ramp only.

MATT4U · Post by **MATT4U** » Mon Aug 06, 2007 8:05 am

PR wrote:
BIG_BOY wrote:that would be very weak & easy to knock back & break off dew to the long distance from the mounting point to the wheel giveing the wheel alot of leaverage

& would need some sort of shockie between the arms & diff houseing other wise it would be like driveing with no shocks

If it breaks he could always rope it up again

Best place for the rope is round ya neck aint it????

gomulletgo · Post by **gomulletgo** » Mon Aug 06, 2007 12:59 pm

Good on you for posting up a design idea :thumleft: , I don't think enough people do that.

As far as the design goes.......have you had a look at the drop outs on one of the north island trucks? I thought that looked like a pretty good idea ......can't remember the build off hand......jafa's build maybe.

mudzilla · Post by **mudzilla** » Mon Aug 06, 2007 1:08 pm

Similar idea to drop shackels on leaf springs...It would probly work if your link arms (blue bits) :?:

were kept a bit shorter. :?:

tpft · Post by **tpft** » Mon Aug 06, 2007 1:15 pm

based on that drawing u would be a lot stronger without the little cantilever
shock mounts, if shocks mounted directly too diff, travel would be same!

plus rear end would flail about every time it rebounded after medium speed bump

Smurf · Post by **Smurf** » Mon Aug 06, 2007 1:50 pm

I like the idea in principal, but once your coilovers have fully extended you have nothing to 'push' the diff down any more, so it may not help keep your wheel on the ground enough to give traction.
Similar in principal to a buggy leaf or 3/4 ellipticall set up used on rear leaf set up. though the buggy leaf still gives downwards pressure to the wheel. I had thought about trying a buggy leaf set up but I don't think it would pass a cert.

http://www.4x4wire.com/jeep/tech/susp/3_4ellip/

http://www.pirate4x4.com/tech/suspension/buggyleaf/index.html

Cutbak · Post by **Cutbak** » Fri Oct 05, 2007 8:19 pm

Smurf wrote:I like the idea in principal, but once your coilovers have fully extended you have nothing to 'push' the diff down any more, so it may not help keep your wheel on the ground enough to give traction.
Similar in principal to a buggy leaf or 3/4 ellipticall set up used on rear leaf set up. though the buggy leaf still gives downwards pressure to the wheel.

I suffer badly from 'gypsy garage' syndrome, whereby I haven't got one, meaning every time I finish anything I'm working on in my 'temporary workshop/driveway/ carport I have to pack everything up and make it look like I was never there... ie. not a lot of opportunity to 'flex' my design ideas.

BUT I do a lot of thinking about suspension, probably most of it wrong - from what I can work out, once the springs on one side are fully extended, you still get a hell of a lot of the "pushing down" from the highly loaded, compressed springs on the opposite side.

4WDbits · Post by **4WDbits** » Fri Oct 05, 2007 9:12 pm

Based on a couple of assumptions:
1. Its all engineered so it doesn't fall apart
2. This is an abstract idea in development
then the main down fall I can see is that the shock rebound settings are nuetralised because the end of the blue line with the shock can move away from the axle. Bascially this means that the axle can move around during rebound as much as it likes until the shock extends so the blue line lays flat along the axles. Maybe it needs something like a keeper shock/coil to control the blue arms movement, something like a keeper coil on dual coil shock overs. To be conventional you might suggest using coil overs with really long travel etc etc. If you were to be unconventional then ... (someone else to fill in the blanks). Should I mention Silverstones for traction here?

lockie · Post by **lockie** » Sat Oct 06, 2007 5:25 am

Check out this guys idea with the a frame crazy amount of flex and not a coil over in sight. could also go with the idea of mounting the coil overs to the trailing arms they would have to be very strongly built though.

http://www.orp.com.au/Gigantor/New%20Gigantor%20Photo_01/RIMG0066.JPG