Thread: SHOW US YOUR FLEX !!!

Some serious flex on a Sierra that I built for a customer 10 years ago........

[ame="http://www.youtube.com/watch?v=W29HHXaHL90"]Flx11e 1 - YouTube[/ame]

[ame="http://www.youtube.com/watch?v=0jY7BpHgUNA"]Flx11e 2 - YouTube[/ame]

[ame="http://www.youtube.com/watch?v=S-SC9HqFqd4"]Flx11e 4 - YouTube[/ame]

[ame="http://www.youtube.com/watch?v=GP7BP8i22yA"]Flx11e 5 - YouTube[/ame]

[ame="http://www.youtube.com/watch?v=P334fVUCzH8"]Flx11e 8 - YouTube[/ame]



Cookey

1988 RR Classic
X-Arm
X-Spring
Terrafirma pin/pin +5 shocks
custom raised TerraFirma top mounts
Rear springs LRA White
Front springs LRA Red

I'll try a ramp next time club has it out.

Cookey, was that Porter's Road in Kenthurst?

[quote=modman;1962390]

Originally Posted by GoldCloverLeaf

Mmmmmm flexi-ness


This WILL open a can if worms and ill put my pirate hat on
Nothing personnel and I do like this 110 ( a lot) but all that rear flex and no front flex makes an unstable rig
The rear looks almost maxed out and the front hasn't even started to articulate
In the Vic high country steep downhill one tyre over a washout or erosion control berm and the rear will unload way before the front articulates to keep the rig balanced
That is a rollover compared to a balanced rig where both axles articulate together
It's a small rant
Btw I am still getting the GL rear mounts, I just intend to use a rear sway bar to encourage the front to flex
Dc

I don't disagree with anything you have said, we all know it's not easy to get great articulation out of the front without some serious mods but the front flex's reasonably well in real-world driving. It has new superpro bushes which seem to be bedding in... if that makes sense! This was taken the other weekend...

Originally Posted by isuzutoo-eh

Cookey, was that Porter's Road in Kenthurst?

Heathcote Rd when lots of it was open.

Cookey

[quote=GoldCloverLeaf;1963113]

Originally Posted by modman

I don't disagree with anything you have said, we all know it's not easy to get great articulation out of the front without some serious mods but the front flex's reasonably well in real-world driving. It has new superpro bushes which seem to be bedding in... if that makes sense! This was taken the other weekend...

Front radius arms have an inherent roll stiffness 'built in' which makes it harder to balance front and rear roll stiffness, but not impossible.

The bush position and spacing creates this and is the reason holey or slotted bushes work so well, and the reason why you don't want Disco or RRC triple shell bushes in the front either.

Having said that, I was surprised when I went from slotted radius arm bushes to the Super Pro ones years ago as it seemed I gave away little flex for a more positive on road driving experience.

There's thread on here somewhere with me doing a very rough before/after flex test.

Originally Posted by modman

...

Nothing personnel and I do like this 110 ( a lot) but all that rear flex and no front flex makes an unstable rig
The rear looks almost maxed out and the front hasn't even started to articulate
In the Vic high country steep downhill one tyre over a washout or erosion control berm and the rear will unload way before the front articulates to keep the rig balanced
That is a rollover compared to a balanced rig where both axles articulate together
It's a small rant
Btw I am still getting the GL rear mounts, I just intend to use a rear sway bar to encourage the front to flex
Dc

You are correct, but the wording at the end, infers (I'm sure unintended) that the GL rear mount is a cause of the imbalance, which is not the case.

Just me being pedantic, so newbies, or not so newbies, don't get the wrong idea about shockie mounts. BTW I have no interest in mounts from GL or elsewhere.

As others have alluded, balanced articulation is difficult with radius arms. A rear sway bar is one thing that does help, but basically everything has to be considered for its affect on balanced articulation. It is easy to get flex from the rear, but often the methods used to achieve that result in loss of front flex, and the problems you described.

Well if Superior come to the party soon with their superflex arms we'll wait and see

An Italian company make these arms... but at 900 euros plus shipping i'll happily wait for a local (engineer approved) product.