Nissan radius arm FLEX design

Post by **Josh n Kat** » Wed Sep 19, 2007 8:07 pm

i've gotta say its a very interesting setup you have. I'm currently trying to decide what to do with my front end with my 4 inch lift thats to go in soon.

i was a little sceptical at first but it does really seem like a very effective design if you say it wont effect on road stability like other setups. are there any adjustments that can be done for castor?

Post by **Suspension Stuff** » Wed Sep 19, 2007 8:24 pm

Josh n Kat wrote:i've gotta say its a very interesting setup you have. I'm currently trying to decide what to do with my front end with my 4 inch lift thats to go in soon.

i was a little sceptical at first but it does really seem like a very effective design if you say it wont effect on road stability like other setups. are there any adjustments that can be done for castor?

The arms come with the castor already corrected. So you get different arms for a 4-5" lift compared to the arms you get for a 6-7" lift. 3", 2" and standard to come when the guys at Superior Engineering get around to it.

It will effect road stability just not much.

Shane

Post by **SIM79** » Thu Sep 20, 2007 6:52 pm

Will this these new arms need engineering approval for road use.

Post by **Willy Hilux** » Thu Sep 20, 2007 7:10 pm

SIM79 wrote:Will this these new arms need engineering approval for road use.

I'm sure these would be sold as off road only. It's very hard to even get stronger or adjustable trailing arms approved.

Post by **1MadEngineer** » Fri Sep 21, 2007 9:44 am

bit of an update: At the moment my test set of arms are currently fitted to a winch comp truck and are headed to the XI for a week of outright punishment!!

to clear a few design issues up - the bottom bush is a std. nissan rear trailing arm bush, we used these because of a few reasons. They are seriously tuff and just about never die compared to the front ones, and the extra width makes them stronger again in this application, and is the exact width to match the adapter plates. Because they are stronger they are able to easily cope with the reduced torque center distance (as the torque input is proportional to the distance of the mount from the rotational center of the front driveshaft, in relation to the contact patch).

ATM i have just become a new dad, so once i can get some sleep and have 2 minute to scratch myself, i can continue with the "on-road brake tests". We started this the other weekend, but although similar to everyone other manufacturers test they are purely subjective, and have no real technical data. Basically we did highspeed full load braking from different speeds between 60 -100kph, then replicated the tests with std arms and normal 4" drop arms. The new arms showed no discernable difference to the normal 4" drop arms. As soon as i get a chance after XRCC, i will install a pair of 'linear-transducers' to the front arms and repeat all the testing, at least then i will have some REAL DATA and i can then compare all the info properly (if time permits and the other subjects are available we will try and get data on some other manufacturers setups to compare - this will really show the "onroad driveablilty"). With a graph plotting L&R arm differential position and feedback from a VSS it will show cornering, braking and roll stiffness in respect to speed around a set course. Hopefully i can get it done in the next month or so, but i am really busy ATM.

Post by **BowTieGQ** » Fri Sep 21, 2007 10:00 am

Bugger the arms, congrats mate!

Post by **badger** » Fri Sep 21, 2007 2:35 pm

ho is racing with them this weekend i wanna keep an eye on them

Post by **love ke70** » Fri Sep 21, 2007 5:13 pm

swaybar or not with this setup?
i daily drive without mine, any feelings on how it would go with this design?

cheers, andrew

Post by **turbodave** » Mon Sep 24, 2007 6:59 pm

badger wrote:ho is racing with them this weekend i wanna keep an eye on them

Robbie Marshall. Says he's very happy with them so far.

Post by **badger** » Mon Sep 24, 2007 8:11 pm

yeah i saw his truck out there................ worked nice. at speed or hitting stuff hard didnt appear any different to the other trucks. didnt get to see him going thru the slow flexy bits tho as we werent alowed close enough

Post by **Madmac** » Mon Sep 24, 2007 9:30 pm

im running drop boxes, can i just buy one arm and retain one standard arm?????

Post by **demon dude** » Sun Sep 30, 2007 9:31 am

Robbie and stouty got a second place in the 8 day winch challenge, they were trialing the new radius arms , GO AVA Race team

Post by **badger** » Sun Sep 30, 2007 7:43 pm

awesome. especially against some of the other big dollar teams out there.

rumour has it they bent a front arm last weekend tho??
that said the stage they allegedly bent it on i recon a factory arm woulda snapped

Post by **demon dude** » Sun Sep 30, 2007 8:47 pm

Just got of the phone to rob, it was Ash's GQ that bent a tie rod. Nothing got bent or broken on robs. He is extremely happy with the new Superior Radius Arms. 2 weeks till the next winch challenge and he is going to keep using the radius arms.

Post by **1MadEngineer** » Mon Oct 01, 2007 9:08 am

Madmac wrote:im running drop boxes, can i just buy one arm and retain one standard arm?????

yeah we had a look the other day and sketched up the arms at different lifts ready for laser cutting, i think he was getting some std lift ones done soon. I am sorry i am not really up on what he is making to sell, better off talking to Mick himself. But the 'std' lift arm is great cus' it only requires the one side, so it suits the guys running drop boxes.

PS: Congrats to Robbie for a 2nd at the XI, he drives awesome!! not bad for his first season!!

The new arms worked sweet, high speed / off camber / wicked climbs - no swaybars either!!

pretty good for only running single shocks as well. So it was a great test for there durability in most driving scenarios!!!

Post by **RoldIT** » Mon Oct 01, 2007 6:23 pm

You sort of mentioned it before but do you know if Superior will be manufacturing these arms with mounting holes for factory swaybar installation?

Post by **demon dude** » Sun Oct 14, 2007 6:43 pm

See their is new pics of the radius arms on Superior's site

Dont know how to put a pic on the page if any one can it would be great.
Mick placed 1st in Carnage Canyon today running the new arms.
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Post by **JemmyBubbles** » Mon Oct 15, 2007 8:24 am

http://www.superiorengineering.com.au/ wrote:
Expected Gains are approx 260mm More wheel travel over any other radius arm in production , shocks, brake lines must be extended .
The arms are manufactured in 4-5 inch lift and 6-7 inch lift, further down the track we will look at doing the standard - 2inch lift and a 3 inch .
When ordering you will be supplied one "Drop radius Arm ' for the Drivers side (Torque Side) and on the passenger a Super High Flex Arm with a spacer block , bolt assembly and 2 Locating plates.
their is no modifications to be done to fit these 'Super Flex Radius Arms' as they are a bolt on kit.
These arms are the next progression in Suspension!!

NOW AVAILABLE
4-5 inch LIFT
6-7 inch LIFT
ONLY $1300 set

ShortyIQ Awesome Design mate. Good to see more aussie invented bolt on fourbee bits.

Post by **Suspension Stuff** » Mon Oct 15, 2007 10:00 am

RoldIT wrote:You sort of mentioned it before but do you know if Superior will be manufacturing these arms with mounting holes for factory swaybar installation?

No not at this stage anyway. Mick says he cannot see any difference to normal arms on road so at this stage it is no sway bar up front.

For extra control for on road purposes you could use Tough Dog or EFS Extreme shocks if you are concerned about it.

Congrats to the designers. It is good to see some actual Engineering going into the design.

Shane.

Post by **ats4x4dotcom** » Mon Oct 15, 2007 3:14 pm

man some of these threads become hilarious with some of the agenda's of people pushing thier own barrows

Post by **1MadEngineer** » Mon Oct 15, 2007 6:58 pm

ats4x4dotcom wrote:man some of these threads become hilarious with some of the agenda's of people pushing thier own barrows

what agenda??? i just love designing stuff !!!!!!!!!!!!!!!!!!!!!! and if someone is buying the beer then ALL info is free

Post by **Freakazoid** » Tue Oct 16, 2007 7:07 am

Stupid question, but what are those arms made of? Some alloy or steel?

Post by **demon dude** » Fri Oct 19, 2007 11:09 pm

Spoke to mick today and he said the arms are manufactured from steel not alloy .
Also he said any one using drop boxes can just by the passenger arm for $650 this will give an awesome flexing and driving combination, as most would know if the control arm is back in its original relationship as far as being low behind the diff it will support the diff properly unlike all drop radius arms/ x-links/caster plates.
Probly the best compromise between flex and onroad handling, certainly be more smoother and stable than other setups.

Post by **Freakazoid** » Sat Oct 20, 2007 5:16 pm

Thanks. I just moved up to 37's and need to do something about the suspension. The idea was to do drop boxes, but now I think I will do arms as well. First I just want to do a set of longer radius arms without any of the interesting stuff. Being in South Africa I it is a bit difficult getting a set of arms shipped over. They are probably seriously heavy.

I'd like to move the chassis mount of the arms all the way back to the cross memeber or even further back. Any issues with this?

Post by **1MadEngineer** » Tue Oct 23, 2007 6:32 pm

Bit of an update on how the trials have been going:
So far GQ's fitted with them have scored a 2nd place overall in Tough Tracks Rd3, 2nd overall in the XI 8 day winch event, 1st Place - Class C (outlaw) in Carnage Canyon event and a 2nd Overall at last weekends Xtreme Winch Challenge. Pretty good results and most are deemed 'highspeed' events.

Post by **azzad** » Wed Oct 24, 2007 8:25 am

I already have a set of other brand drop arms, do the superior arms shift the diff forward as well or are they setup with just the mounting bolts for the diff end lower to suit what ever lift.

Hope that makes sense.

Dazza

Post by **SIM79** » Thu Oct 25, 2007 6:03 am

demon dude wrote: Probly the best compromise between flex and onroad handling, certainly be more smoother and stable than other setups.

I was told that these arm for offroad use so they won't be street legal!!
All the other set ups are legal and can be engineered.

Willy Hilux wrote:
SIM79 wrote:Will this these new arms need engineering approval for road use.
I'm sure these would be sold as off road only. It's very hard to even get stronger or adjustable trailing arms approved.

Post by **demon dude** » Thu Oct 25, 2007 1:03 pm

SIM79 wrote:
demon dude wrote: Probly the best compromise between flex and onroad handling, certainly be more smoother and stable than other setups.
I was told that these arm for offroad use so they won't be street legal!!
All the other set ups are legal and can be engineered.
Willy Hilux wrote:
SIM79 wrote:Will this these new arms need engineering approval for road use.
I'm sure these would be sold as off road only. It's very hard to even get stronger or adjustable trailing arms approved.

In queensland x-links and drop radius arms are both illegal. Any one can obtain a engineeres report for the high flex arms, x-link, 5 link , or dropped radius arms but they are still illegall in queensland >with or without a report. get pulled over by transport officer who has a bad day and you will soon find yourself over the pits.

Post by **love ke70** » Thu Oct 25, 2007 6:15 pm

if its blue plated you cant be defected for it. whether or not you can get these blue plated is another matter...

Post by **demon dude** » Thu Oct 25, 2007 6:54 pm

love ke70 wrote:if its blue plated you cant be defected for it. whether or not you can get these blue plated is another matter...

Not out to start an argument here but stateing the hard facts and that is their is no code for suspension in QLD so that makes it impossible to have a legitamate blue plate for any parts relating to suspension.
Tie rods , drag links, panhards have been engineered (NOT BLUE PLATED) by some guys as they are classed as steering not suspension and body cuts, mods to engines, diffs ect come under body and driveline mods.
Queensland Transport officers can give you the right information on this not police and "some" blue platers are not up on the current ruling so be careful what you are told . QLD DOT has the final say in Qld especially if it goes to court.

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Nissan radius arm FLEX design

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