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QLD - drop tank installation

Started by _BrettLH253_ , Aug 22 2006 10:38 AM

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6 replies to this topic

#1 _BrettLH253_

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Posted 22 August 2006 - 10:38 AM

Hey All,

Does anybody have, or know where I can get reasonably easily, the rules in regards to drop tank installation (i.e. fuel tank alteration). I just need to know the rules in regards to the line of sight etc and whether the exhaust or bumber is included in the measurement to the bottom of the back tyres.

Thanks, Brett

:spoton:

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#2 tinkers

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Name:Kerri
Location:Perth - Gold Coast - Brisbane
Car:LX Hatch & VX Clubsport & VS Ute
Joined: 04-February 07

Posted 24 August 2006 - 04:05 PM

Might be best to give one of the engineers a call.

I dont have the number at work but call the local DOT to get a list.

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#3 _Keithy's_UC_

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Posted 25 August 2006 - 08:29 AM

I was given an Australia wide definition of what is legal with drop tanks. Now this was explained to me by email and i know what it is, but it may be a bit off..

The drop tank may not sit lower than the point halfway between the central wheel axis (wheel hub location) and the lowest factory point on your rear guard (1/4 panel). In order to get away without being engineered you must retain every part of the original vehicle in tact (original pickups, no cutting holes in the floor, original location). It must have a departure angle which is best described by an engineer too as i am unfamiliar with it...

Hope this gives you a breif... Best speak to your local engineer for full QLD rules, but what i just described is australia wide...

Cheers
Keith

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#4 _BrettLH253_

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Posted 25 August 2006 - 08:36 AM

I rung QLD Transport modifications department and they advised the major rule, with being approved for modification ofcoarse, is that the tank must be more than 100mm off the ground, which it would/should be anyway. The tank must also not fall lower than the bottom bolt on the diff (9" that is) with a full load, that was from the engineer.

I had mine approved yesterday :spoton:

actually the whole car was approved (the tank, diff, brakes, seats and seatbelts) so im pretty happy. Just gotta get a RWC now and the car is on the road for the first time in 10 years.

Will post pics in the projects section soon.

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#5 _Keithy's_UC_

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Posted 26 August 2006 - 10:36 PM

Well done mate! Got some pics for us? Cos i dont see em yet.... No pressure of course!

Keith

Edited by Keithy's_UC, 26 August 2006 - 10:37 PM.

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#6 Statler

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Name:Col
Location:Mackay Qld. Whitsundays for all you back packers!
Joined: 20-May 06

Posted 01 September 2006 - 03:35 PM

Probably a bit off topic, but i rang d.o.t when i was putting the tank in ours.
I couldn't fit the tank if there were no identification numbers! That is: there had to be a stamp somewhere on the tank from the manufacturer.
I told them i was going to build my own droptank from scratch. I have the necessary fabrication skills to do the job, all documented.
Not good enough! I had to have a stamp on the tank or it wouldn't be approved.
I argued that i build fuel tanks regularly & failed to see what difference it made if i was building a tank for a customer, or for personal use!
They were adament that i couldn't do it.
In the end i bought a donor car with a drop tank in it. The fabricator was also the person who does the approvals! Needless to say the tank passed first time.
The sheet of alluminium is still leaning up against the wall with the tank dimensions on it.
Things change daily at the d.o.t.
These are the same clowns who wouldn't allow 15" wheels on a previous torry because it had a tyre placard for 13" rims!

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#7 _Keithy's_UC_

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Posted 02 September 2006 - 06:53 AM

Unbelieveable hey...

I researched the departure angle theory...

Angle of departure must be within an imaginary line between the central wheel axis and lowest rear point on body of the car (i.e 1/4 panel or exhaust - whichever sits lower). In my case they used the exhaust as the lowest point.

Cheers
Keith

Edited by Keithy's_UC, 02 September 2006 - 06:54 AM.