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Bit of a dilemma... regarding MPFI comversion 

 

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 Post subject: Bit of a dilemma... regarding MPFI comversion
Posted: Wed Oct 24, 2007 1:15 pm 
Getting Side Ways
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Howdy guys.

as you know, i have a s**t CPI motor in my EA, and its also on LPG.

now, i would love to do a MPFI conversion. A mate has a MPFI motor sittin which i can get all the parts off. Problem is, the Gas Convertor sits right where the airbox should be.

So, would i have to get LPG taken off/re-routed if i was to do the MPFI conversion?

as you can tell im not very LPG-mechanically minded.

cheers guys.


P.S. i tried a search to no avail.

 

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Posted: Wed Oct 24, 2007 7:49 pm 
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anyone?

 

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Posted: Wed Oct 24, 2007 7:52 pm 
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nope, use a pod behind the front bar and get some flexi tube. the TB is all ready nice and low for it
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Posted: Wed Oct 24, 2007 7:53 pm 
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unless you move the airintake to somewhere else.

 

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Posted: Wed Oct 24, 2007 10:21 pm 
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cheers fellas for that.

i just thought of something though.... dosent LPG have its own set of injectors? and they too have CPI and MPFI versions? :?

 

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Posted: Wed Oct 24, 2007 11:59 pm 
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does anyone know this? ^

 

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Posted: Thu Oct 25, 2007 12:11 am 
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i am only guess aren't they intergrated into the fuel line or something once u switch from petrol to gas it turns the petrol one off and starts the gas one using a fuel adjacent to the petrol fue line

 

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Posted: Thu Oct 25, 2007 12:17 am 
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hmmm this kinda sux a bit because i want to MPFI my car but i also want to leave it on LPG.... it seems like i can only do one thing...

 

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Posted: Thu Oct 25, 2007 5:59 pm 
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It depends what setup you're using - I converted my XH from a log manifold to BBM - the converter and mixer were positioned on the passenger side, and needed to be relocated across from the exhaust. I did most of the relocation myself using the same converter/mixer(making intake ducting/making brackets) - if the LPG line is unbroken (i.e. no joins other than the connectors) from the tank to the converter, you are allowed one join AFAIK - I fitted a flex line with joiner to run the LPG line over to the otherside.

You need to find out whether your converter and mixer can still be used with MPFI, and you'll need an LPG installer to inspect your work.

 

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Posted: Thu Oct 25, 2007 10:38 pm 
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i converted my CFI to MFI. it was on gas.

my car had a ring mixer which sat under the CFI throttle body. i got a simple ring mixer as all mpfi setups have and put it between the TB and the elbow as per another mpfi car.

the convertor will need to be moved. mine fit on a bracket on the passenger side shock mount, mounter vertically between the manifold and the shock tower. i just bent the existing tubing CAREFULLY around something large (sauce bottle, longneck, etc).

look around for photos of mpfi lpg cars. its pretty simple s**t.

good luck.
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Posted: Fri Oct 26, 2007 2:30 pm 
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lol can someone post up a pic of a MPFI LPG engine so i can get an idea of how to do this? i tried finding pics but to no avail.

 

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Posted: Fri Oct 26, 2007 3:15 pm 
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EA with an EF motor, Log manifold and LPG.l

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Posted: Fri Oct 26, 2007 4:45 pm 
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whats the matter with you?? For $2000 you can get an EB 4L with fuel injection.

Sell that old taxi your driving and upgrade to a EB.

some people have absolute coconuts for brains

 

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Posted: Fri Oct 26, 2007 5:43 pm 
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man thats one FILTHY engine bay...

 

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Posted: Sat Oct 27, 2007 11:40 am 
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EB MAN wrote:
whats the matter with you?? For $2000 you can get an EB 4L with fuel injection.

Sell that old taxi your driving and upgrade to a EB.

some people have absolute coconuts for brains


that better f**k not be aimed at me :evil:

for your information, its not a f**k taxi, i love my EA, i have spent hours and hours modifying, fixing, washing it, and if you have nothing to say thats going to help me in here then i suggest you shut it :evil:

 

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