Of particular concern is page 49 - NCOP11 Section LS Suspension and steering.
From my understanding, if you put on a 50mm suspension lift, then you can't run 265/75R16 tyres.
W
xavie,
from what i read these are the points of note
1.1 MODIFICATIONS NOT REQUIRING CERTIFICATION
• Lowering and raising suspensions (by not more than one third of the original suspension travel provided the original vehicle height is not increased or decreased by more than 50mm) *May require certification in NSW.
• Shock absorber substitution
• Spring and sway bar substitution
1.2 MODIFICATIONS REQUIRING CERTIFICATION UNDER LS APPROVAL CODES
• Raising the vehicle beyond 50mm but not more than 150mm
1.3 EXCLUSIONS
The following modifications are not covered by this NCOP.
• Vehicle lifts that exceed 150mm: Raising vehicles beyond 150mm is not permitted under this Code of Practice.
Not sure what you would do for +150mm lifts for road registered vehicle???
cheers
yorkie
Of particular concern is page 49 - NCOP11 Section LS Suspension and steering.
From my understanding, if you put on a 50mm suspension lift, then you can't run 265/75R16 tyres.
W
This is what I sent on 21 Mar 2009. I emailed it to jsdwork@iinet.net.au so I hope that was the correct place!
Thank you for the opportunity to comment on the proposed revisions to VSB14. My comments relate to the LS section on Suspension and Tyres.
LS79
Pg7 Re Installation of variable air suspension systems may preclude the use of pneumatic helper springs fitted to the insides of coil springs and air adjustable shock absorbers if fitted with an in-cab settings adjustment. This will also preclude the aftermarket installation of air springs to 4WD’s etc which include stranded and off-road modes such as those currently provided as OE by manufacturers such as Land Rover
Pg9 Re Suspension travel is a positive move to accommodate the fitting of stiffer springs which are typically used in touring, commercial and towing vehicles which are modified to carry additional weight.
Pg15 Re ESP is logical. If the VSB14 LS does not provide enough scope for consideration of modifications to ESP equipped vehicles, perhaps an engineering signatory will be able to approve or reject any modifications based on individual studies especially as there is an increasing incidence of fitment.
Pg19 Re Max tyre size - tyres must not be larger in diameter than 50mm than the largest fitted by the manufacturer. This is later reinforced in the 50-150mm High-lifted section Pg71 where the max lift which can be provided by an increase in tyre size is 25mm (ie no tyres more than 50mm larger than OE). Should be assessed individually by an engineering signatory as vehicles will vary on their tyre size suitability and nonOE products which are able to increase the capacity of related components. The ability to design vehicle modifications that allow greater tyre sizes within other related guidelines will assist in providing the attainment of 4WD modification goals of increased ground clearance and traction with sympathy to the DOTARS goals of vehicular stability, performance and community perceptions.
Pg69+ Re High lift section, there is control now on the composition of lifts up to 150mm. This includes a 50mmOD increase limit for tyres on pg69, Suspension to be lifted no more than 75mm on Pg71, body lifts no more than 50mm on Pg71. If you lift beyond 50mm then you must undertake a lane change test Pg72 which will determine your max ride height up to a max of 150mm over standard. This section is blanket rather than vehicle specific and perhaps the lift composition is better determined on an individual basis by the engineering signatory. Some suspension designs are more than capable of accommodating suspension lifts beyond 50mm and 75mm while performing to acceptable standards. Likewise the accommodation of various tyre sizes can be constrained by bodywork and so the lift composition between tyre size increases, suspension alterations and body lifting may vary with each vehicle. Some vehicles are also not reasonably capable of achieving all of these lifting processes, but are able to otherwise be modified within these guidelines to run at 150mm lift with acceptable stability and will benefit from a relaxation of this lift composition stipulation. Such vehicles may include those fitted with SRS and those with bodies constructed onto a chassis directly or with unitary construction.
Cheers
Slunnie
~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~
As opposed to all the scaremongering going on, this stuff has existed for many years and is just being bought into line on a national level. In Qld the existing system is the Code of Practice for light vehicle modifications. Example would be an aftermarket long range fuel tank. This currently requires a mod plate in Qld and has for years. Suspension travel must remain at two thirds manufacturers spec, aftermarket seats mod plated etc. etc.
The NCOP is just the states trying to get on the same page and have the same system to suit end users. Example is in N.S.W it is legal to have an airbag suspension system in a 'lowlux' while in Qld it is specifically precluded by Qld transport. Under the NCOP airbags would be legal if engineer approved. You will be able to do the same mods you do now, except for monster truck lifts.
There are common elements from the states in the original NCOP, but the NCOP version 2 which was released a couple of months ago (ie this one) has had some significant modifications done to it which have significant implications to those that don't want to drive a bog standard Camry.
Cheers
Slunnie
~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~
Amusingly, South Australian department of Road Transport has informed myself and several others that they will NOT be adopting the NCOPs
Thats the other side of the coin, they've been arguing about this for at least 5 years. I cant see them reaching an accord anytime soon. More likely that some states will pack up their bat and ball and go home. I cant see snorkels and drawer systems being considered modifications (factory options). And a lift of three inches overall should be good for most vehicles. From what i've read it is just an attempt to have what is legal in Qld, legal in WA for example ie. using standardised systems on what requires a mod plate and how it is subsequently tested. No more roll tests in WA etc.
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