Development Test Document - Superior Engineering

Development Test Document
Superior Engineering SuperFlex Radius Arms - suit Toyota LandCruiser
Test criteria: Stock 80 series w/ HD 3" lift open diffs, sway bars and OME shocks.
Test regime: Performed on a 30deree ramp with front shocks removed to allow comparative
measurements across the front shock mounting surfaces.
Tests performed:
1- Swaybars attached F&R, STD radius arm configuration
2- Front swaybar disconnected, rear swaybar connected, STD radius arm configuration
3- Front swaybar disconnected, rear swaybar connected, STD radius arm configuration with front
bolt removed on Passenger side (to simulate 3link/X-link max flex)
4- Front swaybar disconnected, rear swaybar connected, New SuperiorEngeering Superflex radius
arm installed.
5- RTI calculation – (configuration as per #4) 30 degree ramp driven forward and reverse directions.
COMPRESSED EXTENDED
TRAVEL
DIFFERENTIAL
NOTES
TEST 1 543 640 97 3" STD + SWAYBARS F&R
TEST 2 505 660 155 3" STD + SWAYBAR REAR
TEST 3 475 770 295
3" BOLT REMOVED + SWAYBAR
REAR
TEST 4 490 725 235 3" SUPERFLEX + SWAYBAR REAR
Note: OME shocks to suit specified lift = 710mm ext, 480mm comp, 230mm travel.
TEST 5 – RTI as calculated, 2850mm wheelbase. (config #4) Superflex arm fitted, rear swaybar
connected.
Distance travelled FORWARD - 1795mm = 909 RTI @ 20degree (622 RTI @ 30degree)
Distance travelled REVERSE - 1690mm
Supplementary Testing:
A further set of tests were performed in which to acquire data for the optimisation &/or replacement of
shocks and springs to create ‘a full package’. The testing involved removing front and rear shocks so as
not to pollute the data and allow access to measure the available travel of both front and rear suspensions,
this also allows us to measure the useful travel of the vehicle setup as a whole.
Results:
TRAVEL
COMPRESSED EXTENDED DIFFERENTIAL
NOTES
TEST – FRONT
3" SUPERFLEX w/ SWAYBARS
TRAVEL 485 730 245
TEST - REAR
TRAVEL 440 740 300
RTI – (distance as measured on 30 degree ramp)
Forward – 1830mm = 940 RTI @ 20degree (642 RTI @ 30degree)
Reverse – 2065mm
REMOVED FRONT & REAR
3" SUPERFLEX w/ SWAYBARS
REMOVED FRONT & REAR
Conclusions:
Overall flex direct comparisons (test#2 – test#4) show a huge improvement in front end flex, with useable
travel increasing from 155mm to 235mm+ as measured at the shock position. This amount of flex
(230mm+) is equal to or greater than the maximum shock travel as offered by most OE manufacturers.
Test #5 was performed as an indicator of overall component integration, and the maximum constraints of
standard suspension components. Continued testing and development is recommended to attain the better
commercially available shock and spring alternatives. So for the first time a good bolt-in solution is
offered that can finally use ALL of the available shock travel in most ‘long-travel’ lift kits!

Test Vehicle: Toyota LandCruiser 80 series, current suspension – H/Duty Dobinson 3” coil spring set,
OME 3” shocks, factory swaybars w/ SuperiorEngineering drop brackets. OE alloy bulbar and sidesteps.
33” tires.
Test #1 – flex measurements in std form
Test #3 – max OE flex, front Radius Arm bolt removed, no front shocks.

Technology in DESIGN!
Superior Engineering
SUPERFLEX Radius Arms to suit Toyota Landcruiser

NEW – Superior Engineering Landcruiser SUPERFLEX Radius Arms fitted.
As you can see the results are AMAZING!