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Thread: Spacestar / Mirage on LPG / GPL

  1. #1
    Senior Member zefke's Avatar
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    Spacestar / Mirage on LPG / GPL

    Did anybody already convert an engine for running on LPG / GPL (propane / buthane) gas?

    IF you look at the specs, they say the 1.0 and 1.2 MIVEC engines both can not run on LPG.

    Does anybody know what the reason for that is ?

    I know the Mazda 2 Bi-fuel can't actually run on LPG because of its exhaust valve design and the cheap direct linkage of the camshaft tot the valve stems with shims. Causing expensive maintenance issue's and finally a removal and adjustment of the cilinder head and exhaust valves.


    Last edited by zefke; 12-12-2013 at 11:57 AM.

        __________________________________________

        click to view fuel log View my fuel log 2013 Spacestar Invite 1.0 manual: 48.2 mpg (US) ... 20.5 km/L ... 4.9 L/100 km ... 57.8 mpg (Imp)


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    Carmageddon m4v3r1ck's Avatar
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    Mazda 2 is a 4 cyl engine. It might burden 3 cyl engine when run on LPG?

        __________________________________________

        click to view fuel log View my fuel log 2013 Mirage 1.0 manual: 47.5 mpg (US) ... 20.2 km/L ... 5.0 L/100 km ... 57.0 mpg (Imp)


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    Senior Member zefke's Avatar
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    Nope, I know the 3 cilinder 1.0 VW engine runs fine on LPG and I believe the 3 cilinder 1.0 PSA engine as well.

    So the 3 cilinders is not the issue

        __________________________________________

        click to view fuel log View my fuel log 2013 Spacestar Invite 1.0 manual: 48.2 mpg (US) ... 20.5 km/L ... 4.9 L/100 km ... 57.8 mpg (Imp)


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    Carmageddon m4v3r1ck's Avatar
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    I c .... in that case it should be doable right? I honestly don't have experience with LPG and am totally not interested. The cost to build LPG installation in the car can get me more than 500 litre of fuel, so I won't even bother. Before I really save cost from the LPG it should run for at least 500 litre further, not to mention the extra dutch tax will rise because the car is getting heavier. Oh and you may not go to underground parking spaces .... LPG's not too advantageous.

        __________________________________________

        click to view fuel log View my fuel log 2013 Mirage 1.0 manual: 47.5 mpg (US) ... 20.2 km/L ... 5.0 L/100 km ... 57.0 mpg (Imp)


  5. #5
    Senior Member zefke's Avatar
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    Quote Originally Posted by m4v3r1ck View Post
    The cost to build LPG installation in the car can get me more than 500 litre of fuel, so I won't even bother. Before I really save cost from the LPG it should run for at least 500 litre further, not to mention the extra dutch tax will rise because the car is getting heavier.
    Obviously you're not familiar with LPG. In case of the Spacestar, you wouldn't pay more taxes if you have a LPG G3 installation installed with a small tank keeping the total weight of the car below 851 kg, as taxes in the Netherlands for LPG G3 and Petrol are the same below 851kg. Max tank capacity would be around 42 liters (70% of 42 being 30kg is being added to the weight of the car, staying at 850kg. Leaving you with 80% (safety fill level) of 42 liters= app. 33liters fill capacity.

    If you want a bigger tank this would bring you into the next tax category (Paying 380,- instead of 248,- /year which is 132 euro more tax/year.

    Fuel consumption om LPG will increase app. 20% (volumetricly) coming down from 1:20 on petrol to 1:18 on LPG (liter/km). On petrol the cost would be app: 1,65:20=8,2 cent/km on LPG 0,75:18=4.1 cent/km Difference: 4,1 cent/km

    Having a G3 installation installed would cost you minimal 1600,- euro which is the price of around 970 liters Petrol .

    It will take you app 39000km to earn this back, if you only drive 10.000km a year this would be around 4 years if you drive 20.000km/year you could earn it back in 2 years . But if you drive 50.000km a year, you would earn this back the first year leaving you with 2050,- - 1600,- =450,- euro in your pocket the first year and 2050,- the years to follow. My wallet sure as hell wouldn't complain.

    You don't want to recalculate this when you have the option of tanking in Belgium with a price of 50 cent per liter LPG

    But then again this will only be true if the engine runs OK on LPG and you don't run into problems like with the Mazda 2 Bi-Fuel


    Last edited by zefke; 12-12-2013 at 11:58 AM.

        __________________________________________

        click to view fuel log View my fuel log 2013 Spacestar Invite 1.0 manual: 48.2 mpg (US) ... 20.5 km/L ... 4.9 L/100 km ... 57.8 mpg (Imp)


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