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i had a engineer inspection 2day


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#1 _ass308_

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Posted 05 June 2009 - 07:51 PM

as the title suggests.i had my engineer inspection 2day.

everything is fine with the car exept the drop tank

the engineer has no problem,with the mounting,or the quality of the tank.

he does not like the depature angle.everything below the tube shouldnt be there

Posted Image

does anyone in NSW, have this 120 litre brown davis droptank certifed by an engineer in thier car ?

#2 Heath

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Posted 05 June 2009 - 08:01 PM

I've read some of the official documentation for LPG installations and they have the same rule as you've encountered. Can't help you with a solution though. Although I don't think I would have got it engineered haha

#3 ls2lxhatch

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Posted 05 June 2009 - 08:09 PM

I have been worried about this since I read page 5 of the Fuel Systems NCOP, I think you will find that the factory tank does not fit within the departure angle specifications either.

If I was pulled up on the tank then I was going to try to argue that the drop tank fits within the departure angle created by the factory tank. Maybe get the engineer to talk to Brown Davis.

#4 GML-31

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Posted 05 June 2009 - 08:29 PM

my understanding is the Brown Davis one is engineered so ask for a copy of their report for your bloke.

#5 _darkone040_

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Posted 06 June 2009 - 01:02 AM

ouch.. thats a fair bit thats missed the cutoff point..
id email brown davis with that picture and ask for their reasoning to why it should be allowed..

just a question im thinking of getting one for my torrie..
how long ago did you buy it and how much was it..

#6 _ass308_

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Posted 06 June 2009 - 07:46 AM

ls2lxhatch,i will be getting my engineer and david brown together for a phone call next week.does not look good

GML-31,i spoke yesterday to david brown at length.theres nothing he can do,and no certificate.u are on your own

darkone040,bought last year,$1400

the thing that shits me most about this,is the fact it goes up on a tilt tray no problem.

im willing to bet no ones tank makes it inside that angle.

#7 Statler

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Posted 06 June 2009 - 08:05 AM

Hmmmm.......i've seen this rule enforced before in Qld.
I've also seen some very rough hatchet jobs on tanks to make them comply.
I was also of the impression that the Davis Brown tanks were certified, i remember reading it in their literature somewhere.
I think it comes down to the individual engineer.....& their interpretation of the rules.
Let's face it....these tanks have been fitted to registered cars in every state of Oz....& certified!

Posted Image

This was passed in Qld [strictest state for compliance] a few weeks ago.
Good luck m8!

#8 _cruiza_

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Posted 06 June 2009 - 08:05 AM

Thinking outside the square

alter the departure angle by fitting a towbar! :tease:

PS love the car looks alsome and the way you have built it should be a real fun drive

cruiza

#9 76lxhatch

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Posted 06 June 2009 - 09:23 AM

alter the departure angle by fitting a towbar! :tease:

And fit some higher springs to the rear end so the wheels are lower in relation to the tank

#10 Toranavista

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Posted 06 June 2009 - 09:58 AM

Here is some additional info from NSW code of practice 2004. May not be up to date but at least is made in reference to Australian Design Rule (ADR43.4.4)
I think Brown Davis have certification for the fabrication not the instalation.
From the info I think you need to be able to demonstrate that the exhaust is used in the interpretation of the lowest and rearmost extremity of the OEM permanent body work.
As other's have said it will come down to the interpretation of your engineer regarding his willingness to certify the modifications.
http://www.oldgmh.or...4BAE85FE0C731FC

#11 ls2lxhatch

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Posted 06 June 2009 - 11:47 AM

Adding a tow bar will make no difference to the departure angle as it is not permanent body work.

Original Equipment Manufacturer's (OEM) permanent body work



It would be helpful if someone with a single system and standard tank could post a picture showing if the standard tank does or does not fit within the departure angle.

If the standard tank does not fit within the departure angle then you may be able to use the angle created by the standard tank for the drop tank.

Edited by ls2lxhatch, 06 June 2009 - 11:49 AM.


#12 Ruts

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Posted 06 June 2009 - 11:55 AM

If you need a report for the car with the tank fitted there is a engineer in Berrima (southern highlands) that should pass it. That is unless you want the car to be COMPLETELY legal.

#13 _cruiza_

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Posted 06 June 2009 - 01:10 PM

The standard tank fits easily within the departure angle, I have many old grainy photos but this one gives you some idea
Attached File  standard_tank.jpg   57K   105 downloads

#14 _mowie_

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Posted 06 June 2009 - 01:32 PM

Judging from the angle difference of the tank and the bar i dare say they designed it to fit to a torana that sits higher in the rear than yours. I would have thought the fuel tank would be considered a permanant part of the car. If you take yours off to go to the shops then your doing better than me....

#15 Bart

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Posted 06 June 2009 - 01:42 PM

I think the previous post is the simplest, ie higher springs. Saves modifying the tank. Or get a different engineer.

#16 _mowie_

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Posted 06 June 2009 - 02:03 PM

Hi mate,

Just done some simple and very rough calcs. As it is, its only about 7 degrees out but it would need to be raised by 3.4 inches. Only drama is that as the car goes higher so does the rear bodywork.
Diagram;
Posted Image

Tom

#17 _mowie_

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Posted 06 June 2009 - 02:07 PM

If you could jack the rear of the car up by 4 inches and let the rear suspention go into droop then post another pic of the angle. I dont think its a simple case of putting higher springs in.... Sorry

#18 ls2lxhatch

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Posted 06 June 2009 - 02:09 PM

Judging from the angle difference of the tank and the bar i dare say they designed it to fit to a torana that sits higher in the rear than yours. I would have thought the fuel tank would be considered a permanent part of the car. If you take yours off to go to the shops then your doing better than me....

A fuel tank is not "permanent body work".

I think the previous post is the simplest, ie higher springs.


Even if it was a monster truck the tank near the beaver panel would not be inside the angle. It is this point on the orginal tank tank I am not sure fits within the angle.

#19 _Bomber Watson_

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Posted 06 June 2009 - 03:00 PM

Are these picks usefull???

Posted Image

Posted Image

Standard rear springs, standard tank.

Cheers.

#20 wot179

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Posted 06 June 2009 - 03:09 PM

Were A9Xs or any Torana fitted with similar drop tanks from the factory?If they were,I dont see the problem.
Otherwise I think the solution is a more understanding engineer.
They all have the same rulebook,but some read it differently to others.

#21 lxsstorana

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Posted 06 June 2009 - 03:18 PM

I think a number of GHM-Torana members have raised valid points in relation to engineering.

It is a very subjective matter and relies upon the interpretation of the regulations by the engineer (abit like lawyers).

Some engineers will pass a drop tank and some will not.

The rebuild of this hatchback is of the highest quality and I personally know the owner and have inspected the car.

No shortcuts have been taken and cost has never been a factor.

In my opinion this car is 100% legal and hopefully things will work out.

Mick.

#22 mitchg

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Posted 06 June 2009 - 03:26 PM

who is your engineer chris? I used one out at penrith who was a little lenient. When mine had but springs, it sat really low, and the lowest part was 90mm from the ground. He did pass it though, and since then it has been raised in the rear.

#23 axistr

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Posted 06 June 2009 - 03:27 PM

Attached File  torana_1083.JPG   343.07K   79 downloads

Engineer said nothing about my tank departure angle, but we didn't mesure the angle either.

#24 ls2lxhatch

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Posted 06 June 2009 - 03:40 PM

Bomber, thanks for posting the picture. Unfortunately is shows that the standard tank is within the departure angle.

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I will talk to my engineer tomorrow however as far as I can see there is no wiggle room in the NCOP which is used in WA.

The engineer is required to answer each item on checklist LM1. Question 1.7 on page 10 asks if the tank is within the departure angle.

#25 _HRV74_

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Posted 06 June 2009 - 03:57 PM

I'm not surprised at this.
A few years ago (before i owned it) my car scored a new custom made fuel tank for this very reason. It's 100 litres, custom made by Performance Metalcraft.
The engineer would not pass the old tank. The current one is said to fall within the departure angle, and is certified in NSW.

Cheers
H

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