lpg conversion mpg
#1
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since i had my e34 540 touring converted to gas i have kept a little chart of my mileage,gas useage etc,a bit sad
really.
but it helps me to tell when i have a problem
since conversion i have done 342.8 miles
my miles per gallon are 17.57.for a fookin heavy auto tank with near on 300bhp it`s great
a litre of lpg around here is 42.9p,which works out at 3.86 miles per litre.
just like running a family sized car
bet my newer 540 does better though,will have to do the same for that
dave
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but it helps me to tell when i have a problem
since conversion i have done 342.8 miles
my miles per gallon are 17.57.for a fookin heavy auto tank with near on 300bhp it`s great
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a litre of lpg around here is 42.9p,which works out at 3.86 miles per litre.
just like running a family sized car
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bet my newer 540 does better though,will have to do the same for that
dave
#2
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If you are friendly with any farmers particualrly poultry ones, most use LPG to heat the sheds in winter, so you could be paying as little as 11p a litre!!, it is the same gas but without the stench agent(smelly perfume) that has to be in road gas.
Do you have a spark advance unit ?
tabetha
Do you have a spark advance unit ?
tabetha
#3
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If your using a multi point kit just make sure you have good filters in if your going to go using farmers lpg ![Wink](https://passionford.com/forum/images/smilies/icon_wink.gif)
Spark advance untis is still somethign I need to play with Tabetha, not that my Cavalier is going to gain much power
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Spark advance untis is still somethign I need to play with Tabetha, not that my Cavalier is going to gain much power
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#7
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It does what it says on the tin, it advances the ignition, fools the cars lpg ecu into thinking all is well and normal, but you can preset the advance amount over an dabove that normally offered by the lpg ecu/car ecu.
I ran a total of 58 degrees on my xr4i, the difference was night and day, in smoothness and power, suprisingly economy only bettered very slightly, but power was up big time.
On the rollers it made an extra 28lb ft at 1200rpm lower, but 22bhp extra at same rpm.
I used a WOLF 3N box of tricks, adjustable in 4 degree increments, you adjust it/advancing until it does not get any better then stop.
tabetha
I ran a total of 58 degrees on my xr4i, the difference was night and day, in smoothness and power, suprisingly economy only bettered very slightly, but power was up big time.
On the rollers it made an extra 28lb ft at 1200rpm lower, but 22bhp extra at same rpm.
I used a WOLF 3N box of tricks, adjustable in 4 degree increments, you adjust it/advancing until it does not get any better then stop.
tabetha
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#8
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Originally Posted by Fil
34p a littre near me on an industrial estate, for road use, shame my car aint lpg, would be handy at 17.1mpg avg
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so running a big v8 auto on gas is the same as most family run arounds
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#9
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so what kinda ratio of gas to petrol consumption do you see? Prices differ everywhere, but if you had a car which did 20mpg on petrol what might you expect to see on gas?
#10
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when i fill the gas tank up i also put a £10 of petrol in,fuel tank is 90 litre and i ain`t filled it yet
althought it`s getting there
from stone cold it turns to lpg after about 1.5 miles then runs solely on lpg.so i don`t use must petrol at all
when it`s warm it changes over almost straight away.
concerning your 20mpg on petrol,haven`t a clue mate,sorry
it`s all down to how you drive it,auto/manual,do you do town driving or motorway.
i have a mixed route really,town,dual cabbage ways and motorways.
it is only the really ideal way to run a big engined car
hope this helps
dave
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from stone cold it turns to lpg after about 1.5 miles then runs solely on lpg.so i don`t use must petrol at all
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when it`s warm it changes over almost straight away.
concerning your 20mpg on petrol,haven`t a clue mate,sorry
it`s all down to how you drive it,auto/manual,do you do town driving or motorway.
i have a mixed route really,town,dual cabbage ways and motorways.
it is only the really ideal way to run a big engined car
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hope this helps
dave
#11
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20mpg petrol will normally see around 17mpg lpg, but can be as high as 24/25 with advance.
LPG can be used from stone cold first start perfectly, even from -25C if set up right, some have the fuel tanks removed as well.
tabetha
LPG can be used from stone cold first start perfectly, even from -25C if set up right, some have the fuel tanks removed as well.
tabetha
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