Omega Owners Forum

Chat Area => General Discussion Area => Topic started by: tunnie on 07 May 2011, 17:41:47

Title: Range Rover LPG
Post by: tunnie on 07 May 2011, 17:41:47
What would be involved in LPG'ing one?

It would be a 2002 (newer shape) with the 4.4 BMW V8 lump, I assume tank(s) would be underslug at the back? With a smaller petrol tank installed?

What size would fit, is there room for 2x 80L?  :-/

Also no idea how easy it would be to drill the inlet manifold on the BMW lump, easy/hard?  :-/

Can you get away with a single varporiser or would two definetly be required?
Title: Re: Range Rover LPG
Post by: Lazydocker on 07 May 2011, 17:51:21
The same as converting any car ;) ;)

Fairly sure there are vaporisers capable of supplying the fuel to run with a single unit.

Tank wise, think it's generally a 80/95L toroidal and small petrol tank... May be able to get a couple of cylinders in but doubt it'd be bigger than 60L each.

Manifold... Anything's possible ;) Take it off and it's fine I'm sure ;)

Google RPi Engineering... They know RR V8's :y

Oh... And budget about 4-5 times what you spent doing your 4 pot :o :o
Title: Re: Range Rover LPG
Post by: tunnie on 07 May 2011, 17:56:52
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The same as converting any car ;) ;)

Fairly sure there are vaporisers capable of supplying the fuel to run with a single unit.

Tank wise, think it's generally a 80/95L toroidal and small petrol tank... May be able to get a couple of cylinders in but doubt it'd be bigger than 60L each.

Manifold... Anything's possible ;) Take it off and it's fine I'm sure ;)

Google RPi Engineering... They know RR V8's :y

Oh... And budget about 4-5 times what you spent doing your 4 pot :o :o

£2k even DIY?  :o :o

Hummm thats more than I was expecting  :(
Title: Re: Range Rover LPG
Post by: tigers_gonads on 07 May 2011, 18:14:42
Give Teilo a ring   :y
Title: Re: Range Rover LPG
Post by: Lazydocker on 07 May 2011, 18:23:13
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The same as converting any car ;) ;)

Fairly sure there are vaporisers capable of supplying the fuel to run with a single unit.

Tank wise, think it's generally a 80/95L toroidal and small petrol tank... May be able to get a couple of cylinders in but doubt it'd be bigger than 60L each.

Manifold... Anything's possible ;) Take it off and it's fine I'm sure ;)

Google RPi Engineering... They know RR V8's :y

Oh... And budget about 4-5 times what you spent doing your 4 pot :o :o

£2k even DIY?  :o :o

Hummm thats more than I was expecting  :(

At least, particularly if you want to go down the custom petrol tank route ;) ;)

If you just fitted a toroidal in the wheel well and kept the standard tank it's considerably cheaper ;) ;)

But whatever you do, make sure you research the kit properly as those BMW V8's can give variable results when LPG'd, sometimes being more expensive to run than on petrol :o :o It can be done very well, but research is the key :y :y

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Give Teilo a ring

Yeah, why not. I'm sure the Stag 300 Premium is up to the job, as long as he can get hold of the other required bits. But make sure there's someone, somewhere who has managed to get one running right on it first :y :y
Title: Re: Range Rover LPG
Post by: Gaffers on 07 May 2011, 18:24:39
I'm considering tackling an XJR (straight six) later on this year once I have learnt from getting as many parts fo my install done by others fitting it myself so a RR install would be interesting reading for me  :y
Title: Re: Range Rover LPG
Post by: tunnie on 07 May 2011, 18:26:51
Cheers Chaps  :y

Its only a consideration at the moment, thats if we even get one.

If we went donut tank in the wheel well and a "standard" install, would we be talking sub £1k?

Not sure how many people have run stag on 4.4 V8  :(  :-/
Title: Re: Range Rover LPG
Post by: Kevin Wood on 07 May 2011, 18:33:40
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Cheers Chaps  :y

Its only a consideration at the moment, thats if we even get one.

If we went donut tank in the wheel well and a "standard" install, would we be talking sub £1k?

Not sure how many people have run stag on 4.4 V8  :(  :-/

Well, given that a bog standard V6 install is about 700 once you've covered all the sundries, adding a doughnut tank (a 4 hole one. No point in messing about with a multivalve), an extra pair of injectors, uprated vapouriser and a V8 ecu kit with the extra loom connections, etc. I'd say that would take you over 1k before you go much further.

Kevin
Title: Re: Range Rover LPG
Post by: tunnie on 07 May 2011, 18:35:46
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Cheers Chaps  :y

Its only a consideration at the moment, thats if we even get one.

If we went donut tank in the wheel well and a "standard" install, would we be talking sub £1k?

Not sure how many people have run stag on 4.4 V8  :(  :-/

Well, given that a bog standard V6 install is about 700 once you've covered all the sundries, adding a doughnut tank (a 4 hole one. No point in messing about with a multivalve), an extra pair of injectors, uprated vapouriser and a V8 ecu kit with the extra loom connections, etc. I'd say that would take you over 1k before you go much further.

Kevin

Cheers, guess given they at best get 15-20mpg the £££ saving would be fairly high, so repayment not a real issue.

Title: Re: Range Rover LPG
Post by: Lazydocker on 07 May 2011, 18:39:25
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Cheers Chaps  :y

Its only a consideration at the moment, thats if we even get one.

If we went donut tank in the wheel well and a "standard" install, would we be talking sub £1k?

Not sure how many people have run stag on 4.4 V8  :(  :-/

Well, given that a bog standard V6 install is about 700 once you've covered all the sundries, adding a doughnut tank (a 4 hole one. No point in messing about with a multivalve), an extra pair of injectors, uprated vapouriser and a V8 ecu kit with the extra loom connections, etc. I'd say that would take you over 1k before you go much further.

Kevin

Cheers, guess given they at best get 15-20mpg the £££ saving would be fairly high, so repayment not a real issue.


I doubt it would be sub £1k (but probably sub £1.5k) and I would budget at a saving of 10ppmile like the V6's ;)

Of course, if it's going to be used around town all the time then it's not going to be as good (lots of cold running etc)
Title: Re: Range Rover LPG
Post by: tunnie on 07 May 2011, 18:42:54
if we kept it, 95% motorway runs  :y
Title: Re: Range Rover LPG
Post by: Lazydocker on 07 May 2011, 18:49:13
Have a read through this site ;) ;)

http://www.v8dualfuel.com/lpg_kits/range_rover_L322_super.html
Title: Re: Range Rover LPG
Post by: Steve Brookman on 07 May 2011, 18:51:01
Try these

Good write up on full fat range rover forum

http://www.professautogas.co.uk/index.html
Title: Re: Range Rover LPG
Post by: tunnie on 07 May 2011, 18:57:17
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Have a read through this site ;) ;)

http://www.v8dualfuel.com/lpg_kits/range_rover_L322_super.html

Looks tidy, but 2002 year is not the Jag Supercharged 4.2, but standard 4.4 BMW lump  :y
Title: Re: Range Rover LPG
Post by: tunnie on 07 May 2011, 18:59:00
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Try these

Good write up on full fat range rover forum

http://www.professautogas.co.uk/index.html

Those prices are quite competitve, especially for 8 pots  :)
Title: Re: Range Rover LPG
Post by: Steve Brookman on 07 May 2011, 19:02:01
Someone on

 http://www.fullfatrr.com/forum/

had his 4.4 done and has nothing but praise for the conversion.
Title: Re: Range Rover LPG
Post by: Lazydocker on 07 May 2011, 19:02:35
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Try these

Good write up on full fat range rover forum

http://www.professautogas.co.uk/index.html

Apart from the fact they drill the manifold in situ (IIRC) I've heard good things about them... I still find it frightening that they can do a conversion in a day, even with 3 people on it. I fear there must be some corners cut somewhere, or not to the standard I expect :-/ :-/

But then... The have had a lot of very good reviews :y :y
Title: Re: Range Rover LPG
Post by: Gaffers on 07 May 2011, 19:02:44
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Quote
Try these

Good write up on full fat range rover forum

http://www.professautogas.co.uk/index.html

Those prices are quite competitve, especially for 8 pots  :)

Inlet manifold drilling in-situ   :o :o :o
Title: Re: Range Rover LPG
Post by: Steve Brookman on 07 May 2011, 19:03:38
This is the thread

http://www.fullfatrr.com/forum/topic3659.html
Title: Re: Range Rover LPG
Post by: Lazydocker on 07 May 2011, 19:05:16
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Have a read through this site ;) ;)

http://www.v8dualfuel.com/lpg_kits/range_rover_L322_super.html

Looks tidy, but 2002 year is not the Jag Supercharged 4.2, but standard 4.4 BMW lump  :y

Yeah, I know that... It was to give you an idea ;) ;)
Title: Re: Range Rover LPG
Post by: Lazydocker on 07 May 2011, 19:06:25
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Quote
Try these

Good write up on full fat range rover forum

http://www.professautogas.co.uk/index.html

Those prices are quite competitve, especially for 8 pots  :)

I may have over estimated of course, but you'll only know if you enquire :y :y
Title: Re: Range Rover LPG
Post by: tunnie on 07 May 2011, 19:06:50
10 hours  :o

Review here:

http://www.fullfatrr.com/forum/topic3659.html

Drilling it in situ is a bit scary!  :o  :-/
Title: Re: Range Rover LPG
Post by: aaronjb on 07 May 2011, 19:14:53
Is the inlet manifold metal (like older cars) or plastic (like a lot of new cars)? If it's plastic I'd imagine it's much less risky to drill it in situ..
Title: Re: Range Rover LPG
Post by: Lazydocker on 07 May 2011, 19:22:19
Trouble is, on an Omega you couldn't get the injector nozzles as close to the petrol ones as we do without taking the manifold off ;)

Must admit though, I'll be pricing it all up from Teilo before rushing in as that price seems bloody good ::) ::)

Mind you... I'm too fussy to let them do it as I'd be stood over them making sure it was all done to my satisfaction ;D ;D
Title: Re: Range Rover LPG
Post by: aaronjb on 07 May 2011, 19:25:01
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Trouble is, on an Omega you couldn't get the injector nozzles as close to the petrol ones as we do without taking the manifold off ;)

I was talking about the manhood extension Range Rover ;)
Title: Re: Range Rover LPG
Post by: Lazydocker on 07 May 2011, 19:52:07
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Trouble is, on an Omega you couldn't get the injector nozzles as close to the petrol ones as we do without taking the manifold off ;)

I was talking about the manhood extension Range Rover ;)

Yep... Realised that. I would assume it's plastic now :-? :-?
Title: Re: Range Rover LPG
Post by: Darth Loo-knee on 07 May 2011, 20:34:47
Don't forget if the Range Rover has Air Bags the car will lift up and down, in which case under slung tanks if I remember should not be used. :y
Title: Re: Range Rover LPG
Post by: Lazydocker on 07 May 2011, 20:42:36
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Don't forget if the Range Rover has Air Bags the car will lift up and down, in which case under slung tanks if I remember should not be used. :y

I think you can fit them if you remove the spare wheel well... Essentially you cut the bottom out of the wheel well and drop it in there, then seal the top with a plate... But it's a lot of extra work for perhaps an extra 30 miles of range ::) ::)
Title: Re: Range Rover LPG
Post by: Darth Loo-knee on 07 May 2011, 20:46:08
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Don't forget if the Range Rover has Air Bags the car will lift up and down, in which case under slung tanks if I remember should not be used. :y

I think you can fit them if you remove the spare wheel well... Essentially you cut the bottom out of the wheel well and drop it in there, then seal the top with a plate... But it's a lot of extra work for perhaps an extra 30 miles of range ::) ::)


So why not just put the tanks into the spare wheel well?
Title: Re: Range Rover LPG
Post by: Lazydocker on 07 May 2011, 20:47:34
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Quote
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Don't forget if the Range Rover has Air Bags the car will lift up and down, in which case under slung tanks if I remember should not be used. :y

I think you can fit them if you remove the spare wheel well... Essentially you cut the bottom out of the wheel well and drop it in there, then seal the top with a plate... But it's a lot of extra work for perhaps an extra 30 miles of range ::) ::)


So why not just put the tanks into the spare wheel well?

Tank, single ;) ;)

Like I said... A lot of extra work for a few extra miles of range. Not worth it IMO ;)
Title: Re: Range Rover LPG
Post by: Darth Loo-knee on 07 May 2011, 20:49:40
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Quote
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Quote
Don't forget if the Range Rover has Air Bags the car will lift up and down, in which case under slung tanks if I remember should not be used. :y

I think you can fit them if you remove the spare wheel well... Essentially you cut the bottom out of the wheel well and drop it in there, then seal the top with a plate... But it's a lot of extra work for perhaps an extra 30 miles of range ::) ::)


So why not just put the tanks into the spare wheel well?

Tank, single ;) ;)

I know singular from plural.
I had a Range Rover which had twin torpedo tanks (plural) in the spare wheel well
. :P

Like I said... A lot of extra work for a few extra miles of range. Not worth it IMO ;)
Title: Re: Range Rover LPG
Post by: Lazydocker on 07 May 2011, 20:53:37
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Quote
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Don't forget if the Range Rover has Air Bags the car will lift up and down, in which case under slung tanks if I remember should not be used. :y

I think you can fit them if you remove the spare wheel well... Essentially you cut the bottom out of the wheel well and drop it in there, then seal the top with a plate... But it's a lot of extra work for perhaps an extra 30 miles of range ::) ::)


So why not just put the tanks into the spare wheel well?

Tank, single ;) ;)

I know singular from plural.
I had a Range Rover which had twin torpedo tanks (plural) in the spare wheel well
. :P

Like I said... A lot of extra work for a few extra miles of range. Not worth it IMO ;)

Yeah... But toroidal tanks are now more readily available... IIRC there's a 95L one to drop in now :y
Title: Re: Range Rover LPG
Post by: Debs. on 07 May 2011, 20:59:41
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Quote
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Don't forget if the Range Rover has Air Bags the car will lift up and down, in which case under slung tanks if I remember should not be used. :y

I think you can fit them if you remove the spare wheel well... Essentially you cut the bottom out of the wheel well and drop it in there, then seal the top with a plate... But it's a lot of extra work for perhaps an extra 30 miles of range ::) ::)


So why not just put the tanks into the spare wheel well?

Tank, single ;) ;)

I know singular from plural.
I had a Range Rover which had twin torpedo tanks (plural) in the spare wheel well
. :P

Like I said... A lot of extra work for a few extra miles of range. Not worth it IMO ;)

Yeah... But toroidal tanks are now more readily available... IIRC there's a 95L one to drop in now :y

"Jones" (The Butcher) had his van converted to town-gas with a bag on the roof; `seemed to work ok.....at least until someone poked a bayonet through it!;D
Title: Re: Range Rover LPG
Post by: Dishevelled Den on 07 May 2011, 21:08:28
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Quote
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Don't forget if the Range Rover has Air Bags the car will lift up and down, in which case under slung tanks if I remember should not be used. :y

I think you can fit them if you remove the spare wheel well... Essentially you cut the bottom out of the wheel well and drop it in there, then seal the top with a plate... But it's a lot of extra work for perhaps an extra 30 miles of range ::) ::)


So why not just put the tanks into the spare wheel well?

Tank, single ;) ;)

I know singular from plural.
I had a Range Rover which had twin torpedo tanks (plural) in the spare wheel well
. :P

Like I said... A lot of extra work for a few extra miles of range. Not worth it IMO ;)

Yeah... But toroidal tanks are now more readily available... IIRC there's a 95L one to drop in now :y

"Jones" (The Butcher) had his van converted to town-gas with a bag on the roof; `seemed to work ok.....at least until someone poked a bayonet through it!;D

Who do you think you are kidding Missus Deb?
Title: Re: Range Rover LPG
Post by: Debs. on 07 May 2011, 21:14:35
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Who do you think you are kidding Missus Deb?

 ;) Jawohl......

......shall vee examine zee liszt!
;D
Title: Re: Range Rover LPG
Post by: Taxi_Driver on 07 May 2011, 21:28:40
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if we kept it, 95% motorway runs  :y

If it not going to off roaded, how about wheel arch tanks, 4 of them  :-/
Title: Re: Range Rover LPG
Post by: Dishevelled Den on 07 May 2011, 21:32:55
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Quote
Who do you think you are kidding Missus Deb?

 ;) Jawohl......

......shall vee examine zee liszt!
;D


Add a wee bit of Brahms to that and I'm in. [smiley=beer.gif] ;D ;D
Title: Re: Range Rover LPG
Post by: omegadan67 on 08 May 2011, 10:23:29
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if we kept it, 95% motorway runs  :y

If it not going to off roaded, how about wheel arch tanks, 4 of them  :-/
if you never venture off road torpedo tanks of 50l each side of the vehicle can be done,i personally dont have a lpg rr or land rover but i know plenty of friends that do,the bwm engine is the weakest one to lpg cos of the nickelsi cylinder liners.

the previous gen p38 4.0 l are pretty good for lpg and the jag 4.2 is ok

a friend has a l322 lpg with underslung tanks and gets 12 to the gall on gas and 16 on petrol