Discovery V8 (3.9) LPG conversion...info needed..

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Hi all,

I've been looking at a 96' 3.9 V8 LPG Discovery with single point
injection to replace my 95 300tdi ES. As I know nothing about the
different type's of LPG conversion, could someone here on the group
inform me of the difference's between multi point/single point and any
first hand experience of said vehicle with LPG..

Performance difference?
MPG ?
Should it idle nice and evenly on either...this one a 'lumpy' on
Petrol.

Thanks in advance.

 

Mine was lumpy on petrol compared to LPG but my Jag is the same!!

just seems to run smoother on LPG!!

Single point = cheaper conversion and less to go wrong ( Injectors)

Multipoint more expensive to fit more to go wrong but better MPG

MPG will be down about 5 - 10 % on multipoint bout 15 -20 % on singlepoint

Someone will be along in a bit to disprove in a mo no doubt :)
There are peeps on here that REALLY know the LPG game :)
If you can live with the short range with underslung tanks (bout 130 - 150
miles) then the V8 is really the way to go - I'm missing mine already!! only
gone since a month !!


<[email protected]> wrote in message
news:[email protected]...
> Hi all,
>
> I've been looking at a 96' 3.9 V8 LPG Discovery with single point
> injection to replace my 95 300tdi ES. As I know nothing about the
> different type's of LPG conversion, could someone here on the group
> inform me of the difference's between multi point/single point and any
> first hand experience of said vehicle with LPG..
>
> Performance difference?
> MPG ?
> Should it idle nice and evenly on either...this one a 'lumpy' on
> Petrol.
>
> Thanks in advance.
>


 
On Tue, 2 Aug 2005 15:25:12 +0100, "StaffBull"
<[email protected]> wrote:

>
> Mine was lumpy on petrol compared to LPG but my Jag is the same!!
>
> just seems to run smoother on LPG!!
>
> Single point = cheaper conversion and less to go wrong ( Injectors)
>
> Multipoint more expensive to fit more to go wrong but better MPG
>
> MPG will be down about 5 - 10 % on multipoint bout 15 -20 % on singlepoint
>
> Someone will be along in a bit to disprove in a mo no doubt :)
> There are peeps on here that REALLY know the LPG game :)
> If you can live with the short range with underslung tanks (bout 130 - 150
>miles) then the V8 is really the way to go - I'm missing mine already!! only
>gone since a month !!
>
>

yeah, me too. Martyn, you don't want to give it back do you?

Doesn't have to be lumpy on petrol, but it's always a compromise (you
can't have the timing perfect for each). Unless you buy a clever
ignition amp with different timing for the two fuels, which was going
to be my next move...

If you are using the vehicle a lot, don't underestimate how much of a
pita it is to refuel almost every day, or twice some days (it takes
longer than filling with petrol too).


--

Tim Hobbs

'58 Series 2 88" aka "Stig"
'77 101FC Ambulance aka "Burrt"
'03 Volvo V70
 


Wow - only 130 - 150 miles... That's not much at all. What size LPG
tank was that? The one I looked at had four tanks - 2 under the rear
floor and 1 either side of the side steps. My guess is they were 20
litres each, given 80 in total - does that sound possible?

My commute is 100 miles a day (3 days a week) so that filling up nearly
every day would be a real pain, and mainly motorway as well. In fact
I've noted I only pass one LPG station on the journey...42p a litre as
well... :-/

Looks like a TD5 ES with a visit to Allisport of JJ Fearn could be the
answer.

cheers.

 
On Tue, 02 Aug 2005 15:38:11 +0100, Tim Hobbs
<[email protected]> wrote:

>yeah, me too. Martyn, you don't want to give it back do you?

"Give it back"...? You'd have to go do battle with her who has the
boltcroppers matey...

 
Twin 35 L under the sills - gave a fill of around 50 - 55L
Main reason for getting rid was the filling up - closest LPG for us is 8
miles away and most of the time not in the right direction!!

I sold my 300Tdi for the V8 as I needed more power but sold the V8 because
of range, now got a year 2000 Volvo V70 for the "family" cart and I've just
bought the Jag to get to and from work - 60 odd miles a day but giving
around 44Mpg equivalent(LPG) so like running a Fiesta!! but a bit more
comfortable.

I have found myself eyeing up some TD5's lately !!! They now seem a good
idea, especially as the alpine roofs and back doors don't seem to rot - the
curse of the 300 style !!! and you can get a decent one for around the 10
grand mark.

It just don't seem right not having a Landy on the drive :-(


<[email protected]> wrote in message
news:[email protected]...
>
>
> Wow - only 130 - 150 miles... That's not much at all. What size LPG
> tank was that? The one I looked at had four tanks - 2 under the rear
> floor and 1 either side of the side steps. My guess is they were 20
> litres each, given 80 in total - does that sound possible?
>
> My commute is 100 miles a day (3 days a week) so that filling up nearly
> every day would be a real pain, and mainly motorway as well. In fact
> I've noted I only pass one LPG station on the journey...42p a litre as
> well... :-/
>
> Looks like a TD5 ES with a visit to Allisport of JJ Fearn could be the
> answer.
>
> cheers.
>


 
in article [email protected], StaffBull at
[email protected] wrote on 2/8/05 3:25 pm:

>
> Mine was lumpy on petrol compared to LPG but my Jag is the same!!
>
> just seems to run smoother on LPG!!
>
> Single point = cheaper conversion and less to go wrong ( Injectors)
>
> Multipoint more expensive to fit more to go wrong but better MPG
>
> MPG will be down about 5 - 10 % on multipoint bout 15 -20 % on singlepoint
>
> Someone will be along in a bit to disprove in a mo no doubt :)
> There are peeps on here that REALLY know the LPG game :)
> If you can live with the short range with underslung tanks (bout 130 - 150
> miles) then the V8 is really the way to go - I'm missing mine already!! only
> gone since a month !!
>
>
> <[email protected]> wrote in message
> news:[email protected]...
>> Hi all,
>>
>> I've been looking at a 96' 3.9 V8 LPG Discovery with single point
>> injection to replace my 95 300tdi ES. As I know nothing about the
>> different type's of LPG conversion, could someone here on the group
>> inform me of the difference's between multi point/single point and any
>> first hand experience of said vehicle with LPG..
>>
>> Performance difference?
>> MPG ?
>> Should it idle nice and evenly on either...this one a 'lumpy' on
>> Petrol.
>>
>> Thanks in advance.
>>
>
>
try the LPG newsgroup

uk.rec.fuel.lpg

Nikki

 
, you don't want to give it back do you?
>
> Doesn't have to be lumpy on petrol, but it's always a compromise (you
> can't have the timing perfect for each). Unless you buy a clever
> ignition amp with different timing for the two fuels, which was going
> to be my next move...
>

a friend of mine with a mid 90s v8 disco recently converted it to run on LPG
only. he always had it properly serviced and kept it in good nick, but
reckons when he switched to gas it ran much smoother than it ever had on
petrol. reckons it was always a little lumpy at idle. my experience with LPG
has been the same. to do with a very even distribution and mixing of the gas
into the air (gas mixing with gas) rather than a liquid vaporising and
mixing with air (liquid mixing with gas).

Cheers.

Sam.


 
On or around Wed, 03 Aug 2005 03:53:37 GMT, Nikki
<[email protected]> enlightened us thusly:

>>
>try the LPG newsgroup
>
> uk.rec.fuel.lpg
>
There's a "cars" to go in there... in between rec. and fuel.



--
Austin Shackles. www.ddol-las.net my opinions are just that
Appearances: You don't really need make-up. Celebrate your authentic
face by frightening people in the street.
from the Little Book of Complete B***ocks by Alistair Beaton.
 
Thanks all,

This was it if anyone was interested -

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=29748&item=4564941324&rd=1&ssPageName=WDVW

Quite tidy. The usual bit's of corrosion where the rear doors met the
rear wheel arch on one side and had been repaired on the other. Rear
wiper did'nt sweep and the drivers window juddered but other than that
not bad. All the electrics worked...could'nt vouch for the cruise
because I did'nt take it out.

I think £4k is top's now - escpecially with no Service History and I
can't find the LPG installer who did it.

The hunt for a TD5 goes on.....

 
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