Vehicle Engineers reports, 4WD Modification rules, whats allowed, what not...

[the evil twin]

snip....
[/I]Where the original GVM of the vehicle is no longer applicable due to the modifications
performed, a new GVM must be determined.[/I]
So I assume this is what they will be doing with mine as its had the motor changed which has resulted in an increase in weight. Something I will ask them for sure.

Nope... your GVM will still be the same.
Your Tare and Kerb Weight may increase and your Payload decrease accordingly but your 'original' GVM will only change if the Modification affects the GVM so the 'original' is 'no longer applicable' such as an engineered GVM upgrade

Think of it like a 20 litre bucket and for the example assume the bucket alone weighs SFA (tare).
The manuf says this bucket will only carry 20 litres of water equal to 20 Kg as any more and the handle will break (original GVM is 20 Kilos)
Sooo...

Ex factory it carries up to 20 litres (payload) and weighs up to 20 kilos (original GVM) = handle is good

Put in a 5 kilo brick (say an engine modification) this increases tare 5 Kg, bucket can now only carry 15 litres of water (payload) but brick plus water still weighs 20 kilos (mod doesn't affect GVM) and pick up bucket = handle is good (even tho there is still capacity in the bucket for more water)

Now, top the bucket up with some more water so bucket weighs, say, 24 Kg (GVM) and attempt to pick it up (get pulled over by scaleys) = handle will break (Scaleys give you a bluey for being 4 kilos over GVM)

Buy a stronger handle (a mod that does affect GVM ) rated to break at 25KG with a certificate for bucket. Now with brick and water it weighs 24 KG (1 Kg under the new 25 Kg GVM) and pick it up = Handle doesn't break (all is good and scaleys give you a hug)

P.S. where do I send my Consultancy Invoice?

[the evil twin]

There would be a lot of lawyers and public servants out of work if that was the case Mudski

Yeah, keep the good ideas to yourself Mudski

Hands off the public service till after I retire please!!!

[mudski]

I get what your saying ET. So because of the Conversion, the motor is heavier that what was in there, the GVM on a factory fitted GU exactly as mine is 40kegs heavier. I would have thought because they are doing the engineering they would give the car a new GVM to that of factory spec. My original bucket and the new bucket with the brick are physically the same in every aspect, apart from the motor, I would have thought. The springs are the only thing I can think of that might be different out of the box. But having aftermarket springs in would make this null....

I am going to leave it and then see what the engineers are going to do. My head hurts.

[threedogs]

I get what your saying ET. So because of the Conversion, the motor is heavier that what was in there, the GVM on a factory fitted GU exactly as mine is 40kegs heavier. I would have thought because they are doing the engineering they would give the car a new GVM to that of factory spec. My original bucket and the new bucket with the brick are physically the same in every aspect, apart from the motor, I would have thought. The springs are the only thing I can think of that might be different out of the box. But having aftermarket springs in would make this null....

I am going to leave it and then see what the engineers are going to do. My head hurts.

You may have a new tow rating

[General]

Cheers man this was helpful

[the evil twin]

Cheers man this was helpful

Glad we could help get ya to the big Two Five

[Touses]

Glad we could help get ya to the big Two Five

Is that a literal comment or does it contain the merest hint of sarcasm?

[gubigfish]

Is that a literal comment or does it contain the merest hint of sarcasm?

I'm gonna go out on a limb here and say it was loaded with sarcasm

[Touses]

I'm gonna go out on a limb here and say it was loaded with sarcasm

Nah couldn't be, rules are 5k posts to qualify for sarcasm! 413 to go, keep your head down then!

[the evil twin]

Nah couldn't be, rules are 5k posts to qualify for sarcasm! 413 to go, keep your head down then!

412 now...