KPTV8
Member Since: 05 Feb 2012
Location: Itinerant !! (Scotland/Donegal)
Posts: 153
  
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| Need good LPG workshop for STAG-300 conversion on my V8 SE |
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Hi, had my V8 SE for a year now, mostly excellent.
LPG conversion is STAG-300, not many workshops seem to know the product.
My LPG consumption has averaged 14.5 mpg, mostly long runs, which is not as good as several other V8 LPG owners have reported.
I had injectors replaced with Prinz/Prins, fuel consumption is now 15.5, but still seems thirsty, esp. as I'm a very easy-going driver.
So, I'm looking for a STAG-savvy LPG engineer (UK) to review the settings.
LPG was installed by previous owners, I didn't spot FlashLube was wrongly wired and not working, so drove 10k miles with no lube. Fixed that now, and engine mostly sweet (slight valve ticking comes/goes) so just hoping not much exhaust valve damage was done (engine is 4.3L Jag V8, most agree it does need valve lube).
So, would anyone recommend a trusty STAG engineer please ?
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 23rd May 2013 9:18 pm |
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NJSS
Member Since: 06 May 2009
Location: Catherington, Hampshire.
Posts: 10606
 
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KPTV8
Welcome.
Have you searched the forum and read some of the relevant threads such as:-
http://www.disco3.co.uk/forum/topic83742.html
There are members out there with experience - I didn't know STAG was Polish!
NJAA Am I Gammon or Woke ? - I neither know nor care.
2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t.
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| 23rd May 2013 9:55 pm |
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Mike_Hammond
Member Since: 09 Mar 2013
Location: Shropshire
Posts: 148
 
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Having ran a couple of LPG cars, one of them a 4L Jeep I converted myself, I would say that 15mpg out of a V8 is on the money. What does it do on petrol with the same sort of driving, 18-19 if you're careful ? You'll always see a couple of mpg less with lpg so I think you are on a hiding to nothing searching for any more out of it to be honest 
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| 23rd May 2013 10:22 pm |
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hgrimmett
Member Since: 11 Oct 2009
Location: Bledlow
Posts: 901
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I don't have an LPG car anymore but when I did and I had problems the best garage out there seemed to be Autogas 2000 in Thirsk. john's a great bloke and will see you right, I travelled up to him one day from Herts and it was well worth the journey. -------------------------------------------------------------------
D4 '15 (64) Se Tech Indus Silver
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D3 '07 (56) XS TDV6 Buckingham Blue (gone)
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| 23rd May 2013 10:24 pm |
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KPTV8
Member Since: 05 Feb 2012
Location: Itinerant !! (Scotland/Donegal)
Posts: 153
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| Thanks for guidance :-)))) |
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Just want to say thanks kindly NJSS, Mike_Hammond, hgrimmett for very welcome advice / thoughts.
Maybe I'm hoping for too much on the fuel economy front .......... but I've never run my D3 on petrol for long enough to get decent data on consumption to help set a baseline.
Perhaps I'll sit tight short term until I've survived another upcoming expense - tyres. Hah, these D3s are fab. vehicles but you need to be able to absorb the running expenses.
Cheers & thanks,
Kevin
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| 28th May 2013 4:47 am |
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