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LPG conversion for V8??
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simon_arch1
 


Member Since: 10 Apr 2006
Location: Melbourne Australia
Posts: 502

Australia 2006 Discovery 3 TDV6 SE Auto Buckingham BlueDiscovery 3

"Not a good idea using the spare wheel well, this forms part of the rear crash protection system and I guess LPG tanks aren't good things to smash "

gents - dredging through old posts....

I had not heard this about the "crash-protection system" before - is this documented somewhere?

Us crazy Aussies Smile have several manufacturers of auxilliary fuel tanks that go in place of the spare too - to cover our distances, 85l is never enough. I'm very surprised that the spare placement would form part of a crash safety system - any more info greatly appreciated.

cheers,

Simon
 D3 - Buckingham Blue, SE, TDV6, 06 model; chipped; underbody armour; Mickey Thompson ATZ 275/65-18 AND MAXXIS Bighorn muddies; rear wheel carrier from 4x4intelligence.com; iPOD aux connection! GME 3200 UHF - aerial mounted on wheel carrier Smile; LR roof rails/cross bars; Autosafe cargo barrier, Safari Snorkel; Traxide - aux battery; ARB bull bar with Tigerz11 winch; Lightforce 240 XGT driving lights (mitchell bros tow hitch to come)  
Post #31070016th Jun 2008 12:40 am
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Clarabella
 


Member Since: 11 Oct 2007
Location: Nottingham
Posts: 130

United Kingdom 2005 Discovery 3 4.4 V8 HSE Auto Java BlackDiscovery 3

simon_arch1 wrote:
"Not a good idea using the spare wheel well, this forms part of the rear crash protection system and I guess LPG tanks aren't good things to smash "

gents - dredging through old posts....

I had not heard this about the "crash-protection system" before - is this documented somewhere?

Us crazy Aussies Smile have several manufacturers of auxilliary fuel tanks that go in place of the spare too - to cover our distances, 85l is never enough. I'm very surprised that the spare placement would form part of a crash safety system - any more info greatly appreciated.

cheers,

Simon


This is some info we found on the internet when we was searching for info on the safety of LPG.

Is it Safe?

"The LPG is stored in the vehicle in liquid form and contained in a substantial cylinder. An automatic, safety valve prevents overfilling of the tank. A number of other safety features are built into the tanks including a pressure release valve and a solenoid valve to shut off the flow when the engine stops. Crash tests have shown that gas-powered vehicles are extremely safe, as LPG is more difficult to ignite than any other fuels. Due to these properties and safety features, gas-powered vehicles are safer than petrol-powered vehicles.


Millbrook test facility had done extensive crash tests on LPG tanks and installations and have approved lots of dual fuel vehicles made by manufacturers such as Volvo, Vauxhall and Ford."

To say that having an LPG tank under or at the rear of your car is like carrying a bomb is just nonsense. Petrol and it's vapours are so much more dangerous. Plus the fuel tanks are alot weaker too.

If you want an LPG Discovery then go for it.
  
Post #31071316th Jun 2008 6:35 am
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DingMark
 


Member Since: 14 Sep 2007
Location: Perth Oz or Erbil, Iraq
Posts: 388

Iraq 2010 Discovery 4 3.0 TDV6 HSE Auto Ipanema SandDiscovery 4

Simon et.al.,
The rear end "crash zone" issue is less applicable to Oz. In the US (and probably UK) rear-end accidents are the most common serious ones. Ralph Nader's book "Unsafe At Any Speed" made this point (the car in question had sharp brackets which served as perfect fuel tank slicers and sparkers). This drove the US Congress to mandating that fuel tanks must be in front of the rear axle (very prescriptive solution which made sedan boots nearly unusable which in turn encouraged use of pickup trucks, in nett effect a safety spec caused people to purchase and use less stable and more dangerous vehicles).

Here in Oz (maybe even Melbourne) the most common form of serious accident is hitting something that hops, that munches on things (eg camels, cattle, goats) or something that can be munched on (ie, trees). Diesel in a rear tank is particularly safe as it is nearly impossible to ignite without being atomized. My V8 admittedly has more risk than does your diesel, but I'm hoping that this is offset somewhat by the excellent 4x4Intelligence spare tyre holder Thumbs Up and Mitchell hitch discouraging collision. Also the LPG tanks I've seen have "high flow shutoff" valves (just like most proper barbeque tanks have) which block off the flow if the fuel line is ruptured or torn off.
 Jim Dowell - D4 HSE TDi, 12,000 hydraulic winch & hidden winch mount, MTRs, TyreDog, Traxide 2 x aux battery system, fixed air compressor, Dolium roof rack, MitchHitch.
RIP 2005 D3 HSE V8 5 seater gold (stolen and torched) 
 
Post #31072316th Jun 2008 7:21 am
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duncancav
 


Member Since: 08 May 2008
Location: Melbourne, Victoria Australia
Posts: 5

Australia 2005 Discovery 3 4.4 V8 SE Auto Zambezi SilverDiscovery 3

Hi,
I am in Australia and was wondering if you had photos of the tank in the back (With the 7th seat removed).
Thanks



Monkeyhanger wrote:
Hello JP,
I've just taken delivery last Tuesday of a Discovery3 V8 which has been converted for LPG by AMR Autos at Stokesley North Yorks, tel 01642 711107. I used to have a TDV6 but this one blows it's socks off and all for 10p per mile ( about 42 mpg compared to the diesel ).

There is no loss in power and I can gaurantee both you and your wallet will have a smile on your face. Land Rover have indirectly stated that unless it can be shown that a defect is caused by the conversion, they will honour their warranty. On top of that, you can also get a warranty from the makers of the conversion kit.

I understand that as far as is known at present, mine is only the third in the country to be converted though that is open to challenge.

You can have a doughnut tank in the spare wheel compartment, but as that then causes a problem with where to put the spare wheel, I had the seventh seat removed ( never used them in 2 years) on the offside and installed 120 litre tank longitudinally. Andrew and his merry men at AMR Autos made such a neat job they actaully made the brackets to fit the bolt holes for the seat. That way if I decide to remove the kit, the seat will go back in and there are no unsightly holes. Also you still have 6 feet of luggage space down the nearside.

As far as cost, that was part of the deal for buying the new car from the dealers so you'll have to discuss that one with Andrew.

I've just got back from the weekend in the Scottish Highlands and the car which had 80 miles on last week, now has 2,000.

Several things to note about the V8. You will need a pilots licence cos it does take off from go ( actually got it airborn on one Scottish road), it's lots quieter than the TDV6 which makes the excellent radio even better. The gearbox is phenomenal and in sports mode revs to 6,000 revs which in second gear is about 60 mph. Between 2nd and 3rd, playing hard the car takes it's wax jacket and green wellies off, dons it's flame proof overalls and turns into a rally car. Dial the sat nav down to about 1/16th and you have your own pace notes. It's like having Nicky Grist sitting beside you as you turn into Colin Macrae. The car takes bends as if it was on rails and the suspension which at lower speeds is spongy and wallowy seems to stiffen up and grab the tarmac. In fact I've been into the dealers today asking about the adaptive suspension. Gimme!

If you want any further info I'm only too happy to oblige. The car's presently covered in Scottish mud and the wheels are a lovely graphite black colour but as soon as I clean it tomorrow I'll take some photos and let you see the tank etc.

Leo
  
Post #4756993rd Jun 2009 2:25 pm
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stickerbaron
 


Member Since: 09 Nov 2020
Location: germany
Posts: 10

Germany 2008 Discovery 3 4.4 V8 HSE Auto Chawton WhiteDiscovery 3

Hi, I'm new in the DISCO Business, I'm from Germany, I really like the DISCO V8.

I want to install a LPG Prins System. Does anybody has some experience with LPG on this 4.4L V8?
Is it stable?


This thread is quiet old, maybe I could not find the right one.
In Germany the V8 was not sold officially, that is why it is hard to find good experiences.

Hope to get an answer. Thank you in advance!
  
Post #21856489th Nov 2020 3:16 pm
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MintyHit
 


Member Since: 25 Jul 2017
Location: Bradford on Avon
Posts: 227

United Kingdom 2005 Discovery 3 4.4 V8 HSE Auto Java BlackDiscovery 3

Hi,

I converted one myself using a Prins reducer, injectors and valve care system but using a Optima ECU & wiring loom.

What do you need to know?

Mine is completely stable, no errors or issues and I can't tell the diffrence between running of either fuel aside from a touch more injector noise.

James
  
Post #21856569th Nov 2020 4:13 pm
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stickerbaron
 


Member Since: 09 Nov 2020
Location: germany
Posts: 10

Germany 2008 Discovery 3 4.4 V8 HSE Auto Chawton WhiteDiscovery 3

Thanks, that's what I wanted to hear.

I bought a complete Prins System with Keihin injectors.

I will have a look for a valve saving (cooling) system, like FlashLube. That is the most known company for this in Germany.
  
Post #21856649th Nov 2020 4:32 pm
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MintyHit
 


Member Since: 25 Jul 2017
Location: Bradford on Avon
Posts: 227

United Kingdom 2005 Discovery 3 4.4 V8 HSE Auto Java BlackDiscovery 3

Yes I wouldn't run it without any valve care fluid. I actually use the FlashLube fluid in a Prins ValveCare pump without any issues.
  
Post #21856709th Nov 2020 4:57 pm
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stickerbaron
 


Member Since: 09 Nov 2020
Location: germany
Posts: 10

Germany 2008 Discovery 3 4.4 V8 HSE Auto Chawton WhiteDiscovery 3

I have installed now a prins lpg system with a prins valve care system. How long does the fluid last? Can you tell in km? Just to compare the consumption.
  
Post #219359013th Dec 2020 11:48 am
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