Quote Originally Posted by Alien DNA View Post
I'll be able to confirm all the specifics next week as im taking a break for a week off work, and getting back in touch with the engineer when i get back. Spoke today briefly to him and VicRoads have implimented another rule that goes by vehicle weight to measure max cubic inches. Power becomes irrelavant now, which has always been a sticking point for engineers.
eg- previously laws satated that the max cubes for a HQ was 400ci.....new rule formula says 427 is possible. One engineer i spoke to said he could pass 454ci if i did a bunch of chassis and suspension mods. this rang alarm bells for me because if i went for a 396ci BBC, because off the smaller cubes, i wouldnt need chassis and suspenion mods,....but the engine weight would be virtually the same. There are way too many grey areas between engineers.....but until i can get the law in black and white, i dont believe what i hear or see.
If you get a copy of VSB14 it sets out the NCOPs which are what Vicroads have signed off on, you will see that there has always been a weight to cubic capacity formula which uses the unladen weight of the heaviest sedan version of the model in question to calculate the cubic capacity in ccs. This in an HQ worked out to be 451 cubic inches, so yes the 427 is the largest allowed in an HQ. If your engineer has only just "discovered" this I think you need to look for someone with a better understanding of the regulations.
https://infrastructure.gov.au/roads/.../vsb_ncop.aspx

Here is the link to the Dept of Transport site and has all the NCOPs in the form of VSB14 which has about 20 parts. I have been studying these and the 2nd and 3rd generation ADRs since starting the build of my ICV motorbike in 2007