Similar vain, was how according to the compliance papers or whatever they are in NSW (Name escapes me, but was in a thread talking about what wheel sizes are technically compliant from a certification perspective) the VF SV6 was only certified with 18 inch and 20 inch wheels. I remember having a browse around there and the only V6 19 inch wheel certification was for Calais and its different suspension tune etc.
That didnt take into account the fact the Employee only Reserve Edition SV6 came with non staggered 19 inch redline wheels, and didnt seem to have an amended compliance certificate (Or whatever it was)
What does that mean in the real world? Probably two fifths of F all, but hey, that's why I love these Forums
The Road Vehicle Descriptor is one such compliance document that lists what is standard and optional for each
variant sold in our market. It includes stuff like engine and transmission, wheels and tyres, brakes, ride height, brakes, tow bar, etc. But there are a lost of other documents that sit behind this high level doc that go into more detail.
However, that doesn't mean modifying your vehicle is impossible. Wheels and tyres are a well travel path for car guys and it isn5 complex and doesn’t require certification. Other things like brakes require modification certification, even if taking something from HSV and putting it on a Holden, which is frustrating. Why is it like this is because certification is based on model variant and as such a SS variant is different to Redline variant which is different to ClubSport.
Fortunately registration authorities haven’t got all their ducks in a row which gives us some headroom with mods (as they've ignored variant based manufacturer certification).
Having said that, one must remember the problem 4x4 lifted vehicles and 4x4 GVM mods were causing problems for people that made what they thought were good mods in the state but got pulled off the road when holidaying in WA or QLD
That’s hardly two fifths of fcuk all if such happened to you
Supposedly it’s all a problem because of how mods may impact ABS/ESC which never was a concern before this tech comes into play
In my mind, logically there isn’t any appreciable difference on public roads, for example between the dynamics of an SS, Redline or Limited edition V8’s even though they don’t all have staggered 20” wheels. Maybe there are some differences at highly illegal speeds one sees on track (though I’m a little sceptical it’d be a big difference). Even though, for example, it’s illegal to replace the standard staggered wheel arrangement my car comes with to that of a symmetrical wheel arrangement of a lesser car.… I can’t legally do it and that’s with wheels which are supposedly an easy car mod. But as the rules say you can’t go skinnier than standard = I’m stuck with staggered arrangement and Holden agrees as they begrudgingly sent to me a letter stating I can’t go symmetrical 19” wheels on my car though they said I can go staggered 19”
Brakes mods do require certification but many do it without such… guess they trust their insurance company more than I do
