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Author Topic: LPG'ing the Jag!  (Read 2180 times)

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JamesV6CDX

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LPG'ing the Jag!
« on: 07 January 2013, 15:34:21 »

Well, when I feel better again, this is going to be inevitible. It's thirsty - much more so than a 3.2 Omega Auto. 17mpg locally, 26mpg on a run at best.

Cost of LPG kits is quite low at the moment.. so I may as well do it...

This is going to be a challenging/exciting project for me really - I've never gassed anything other than an Omega.

I will use Stag 300+ and KME gold dual output vap.

The engine is essentially a Duratec V6. Does this have weaker valves like the Zetec? if so - flashlube?

I don't have a clue where to start with wiring for switched feed, RPM, etc.. whereas the Omega I know where to look by eye..
that will be something I'll have to look into!

Also - there is a huge spare wheel recess for a tank - BUT the battery is located next to it. I need to check whether that would fall foul of the COP.

Won't be starting for a few weeks, when I feel better - but wish me luck ;D :y
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b4ndit

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Re: LPG'ing the Jag!
« Reply #1 on: 07 January 2013, 15:46:19 »

that should keep you busy for a while hope it all goes well for you :y
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Marks DTM Calib

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Re: LPG'ing the Jag!
« Reply #2 on: 07 January 2013, 16:04:27 »

Valves are a bit soft so you need a lube kit.

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Kevin Wood

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Re: LPG'ing the Jag!
« Reply #3 on: 07 January 2013, 16:20:14 »

I have a feeling this engine has a returnless fuel system with closed loop control of the fuel pressure so it could be quite an involved LPG install if that's the case.

Flashlube is indeed required, as said.
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Lazydocker

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Re: LPG'ing the Jag!
« Reply #4 on: 07 January 2013, 17:06:05 »

Must have Flashlube and, even so, expect to see VSR in fairly quick order (70k max), but that won't be an issue for you as you'll change car again long before reaching 70k in it :-X ::)

As KW says, the petrol fuel system will probably need fiddling with to keep the ECU happy. Possibly as detailed as fitting a "restricted flow" return to the tank :o
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Lazydocker

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Re: LPG'ing the Jag!
« Reply #5 on: 07 January 2013, 17:07:16 »

Oh, and as for the battery... Worst case scenario is you might need to fit some form of protection between the battery and the tank :y
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tunnie

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Re: LPG'ing the Jag!
« Reply #6 on: 07 January 2013, 18:42:12 »

Where are you sourcing the kit from & how much?
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Lazydocker

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Re: LPG'ing the Jag!
« Reply #7 on: 07 January 2013, 19:01:31 »

Where are you sourcing the kit from & how much?

Are you looking for a kit for the 3.2?
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tunnie

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Re: LPG'ing the Jag!
« Reply #8 on: 07 January 2013, 19:22:48 »

Where are you sourcing the kit from & how much?

Are you looking for a kit for the 3.2?

Think it has to be done, its not getting used due to fuel costs.
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Lazydocker

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Re: LPG'ing the Jag!
« Reply #9 on: 07 January 2013, 21:21:38 »

Where are you sourcing the kit from & how much?

Are you looking for a kit for the 3.2?

Think it has to be done, its not getting used due to fuel costs.

OK... I'm making a call tomorrow so I can now say that there are 2 wanted (potentially) ;)
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Manual Elite V6

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Re: LPG'ing the Jag!
« Reply #10 on: 07 January 2013, 21:23:45 »

Be prepared for an almost constant EML, most LPG'd Jags whether the V6 or the V8 almost always throw up lean running codes or misfire codes.
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tunnie

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Re: LPG'ing the Jag!
« Reply #11 on: 07 January 2013, 21:29:01 »

Where are you sourcing the kit from & how much?

Are you looking for a kit for the 3.2?

Think it has to be done, its not getting used due to fuel costs.

OK... I'm making a call tomorrow so I can now say that there are 2 wanted (potentially) ;)

Yup its potential, like to see how much for the kit + tank. Will go 80L this time, as that fits better than 90L.

Thanks  :y
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Lazydocker

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Re: LPG'ing the Jag!
« Reply #12 on: 07 January 2013, 21:29:45 »

Be prepared for an almost constant EML, most LPG'd Jags whether the V6 or the V8 almost always throw up lean running codes or misfire codes.

If done properly there is no need. The biggest issue is the fuel return ;)

Unfortunately you will mostly see the ones with a problem as a natural reaction to your job ;)
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Manual Elite V6

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Re: LPG'ing the Jag!
« Reply #13 on: 07 January 2013, 22:19:34 »

Most problems are caused by fitters who in reality don't have a clue what they are doing, they can fit the main components and thats about it, if looked into properly it can be done successfully, though the Jag ECU's do tend to be overly sensitive to little changes in any parameters it sees.
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05omegav6

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Re: LPG'ing the Jag!
« Reply #14 on: 08 January 2013, 14:17:56 »

Oh, and as for the battery... Worst case scenario is you might need to fit some form of protection between the battery and the tank :y

http://www.vetus-shop.com/vetus-battery-boxes-c-23_48_98.html :y

Bolted down with hollow bolts to allow natural venting outside the car :y
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