Thread: X eng deflex kit

Originally Posted by isuzurover

I too think it was strange this has been moved to marketplace alerts... It is certainly a tech thread now. Maybe move it to the modified zone or whatever it is called if it needs moving...

Anyway, back to physics.

I am not 100% sure what he is getting at - is he trying to say the airbag can shock load the arm???

He might be talking about the increase in spring rate when the bellows get to the bottom of the piston (where it flares out). The spring rate increases quite quickly there.

So if you are driving at speed with a full load on and hit a bump that fully compresses one side, you will get a bigger increase in spring rate at the end than you would with coils...

However since landies come with OEM airbags... maybe Simon tried to make them too lightweight...

I seem to recall his model simulated more roll effect for some reason? As to say a coil is a wound up torsion bar etc.


I need access to the emails we exchanged a wile back for discussion

I'll email Simon again on this part, we may as well all understand what the cause may be. If it indeed is the air suspension?
In my case the arm bent instantly on the first corner wile the truck was 60% loaded.

Simon has described it as the only possible mode of failure due to the curve put in that arm to accommodate the factory exhaust.

Cheers T

I better send Simon another email, he never replied to the last

Might gusset the same as yours today Tony, missing not having it, very rolly

Originally Posted by Rangier Rover

Why after all this time move this to market place alerts now

Matt or I may start a new thread in a more appropriate place and merge the relevant posts as this will be ongoing till sorted Or just bury it in our build threads so no one can find it any more.

Well, this never got moved back somewhere relevant so I wont bother with any up date as none will find it anyway.

When I find time, I'll update my 120" thread rather than start another.

Must PM Matt soon and see what he had done to date.

I have just had an x eng swaybar fitted to my 87 Rangie That i got from hy line in Taralgon. What an amazing difference it has made. So much flatter around corners and alot more stable at speed on the freeway. One of the best mods I have done to date, I would highly recommend it to anyone.

Hey Matt, any news on your set up? Have done the gusset or gone the laminate?

Originally Posted by Rangier Rover

Hey Matt, any news on your set up? Have done the gusset or gone the laminate?

Never got a reply, just a gusset the same as yours, works well, to be honest I think the bind issue maybe the extra 30mm in place for the swaybar to clear the bags

Originally Posted by rovercare

Just about to shoot Simon an email, hopefully he'll send 2 arms and sandwich them together

One thing, you certainly notice its not in there

And another random bending seeing as I'm loadingpics

Just for the exercise, let's 'Workshop' the design of the vertical link.
If you study the design of the link more closely,there is no way that you could expect the lever arm not to permanently bend and twist unless it was much more substantial or made of spring steel. The vertical forces applied from the link to the lever arm are offcentre which imparts a twisting force to the arm. The arms need to be spaced further apart at the torsion bar, equal to the distance between the centre of the balls of the ball joints on the axle.Bending the arms laterally to increase the spacing wont work IMO.And a clevis yoke should be fitted to the top of the link in place of the outrigger bolt to minimise offcentre forces.
Of course there will still be some lesser lateral bending forces applied to the lever arm when the axlegets out of parrallell with the torsion bar with articulation or body roll.
Wagoo.

Originally Posted by Rangier Rover

At last.... some pics of the gusset added to the curved arm.







Have done about 800k's so far and not bent it again.

I'm not happy with yet as tends to work its way to one side a bit. The arm my have a slight twist in it? When I get time I'll pull it off and investigate.

Still drives like a dime with the load on. Much safer now at higher speeds.


Cheers T

Well, some time has passed since doing this. I haven't worried Simon anymore as the gusset works fine. Has been in heavy everyday use with no issues what so ever. Great bit of kit.


T