Auto-LPG Conversion Thread

[PareKoy]

GREENFUEL can convert your car to SGI-LPG for P42K with cylinder tank. P45K if with donut tank.

SGI kits give better over-all performance but costs more and you can't tinker with the settings.

Venturi kits are cheaper and simpler but more modern engines aren't compatible with these. Tuned well, these can perform nearly like SGI systems up to around 4000rpm. But keep the air filter clean.

Sir ghosthunter,

Kamusta ung pinaconvert nyo na Mazda3 1.6L? If given the chance, would you do it again? Sir, how bout yung fuel consumption and effect sa power? Nagkaroon ba ng problems sir?

I'm thinking of getting my Mazda3 converted.

Thanks

[n5110]

I'm at Thermoline right now having my ride converted. wish me luck! will post feedback here for the benefit of the community.

goodluck sir. balitaan niyo kami.

[ghosthunter]

Kamusta ung pinaconvert nyo na Mazda3 1.6L? If given the chance, would you do it again? Sir, how bout yung fuel consumption and effect sa power? Nagkaroon ba ng problems sir?

I'm thinking of getting my Mazda3 converted.

Thanks

So far it's been a month since the last hiccup of the CEL light. FC is about a little less than gasoline and power is roughly the same, at least in the category of accelerating the car from 0-60mph using my G-Tech performance meter (1/2 second less in LPG).

Do it again?... with the same oil price situation, yes.

[glennjv]

I had my Mazda 3 converted and picked up last friday.
So far so good. The power seems to be the same.

I opted for the 60L cylindrical tank since I didn't mind loosing about 1/3 of my trunk space to the tank.
GreenFuel lifted the tank a bit so I can still remove the plastic cover and spare tire as seen on the picture.



I also didn't mind putting a hole in the bumper for the refueling plug


I then had the switch/gauge placed on the left most part so I can see it and the steering wheel doesn't block the view.


The Injectors are placed on the same spot as GH's M3.



The Vaporizer was placed in the different spot from GHs M3 according to Mike. Its deeper.

[noname]

sige sir noname. I look forward to reading your feedback on your thermoline LPG conversion in this thread.

my ride - 2.0 liter engine, twin tip spark plugs, 5 star high ten, nology amplifier, simota air intake.
fuel economy using petron xcs - 8km/liter
using lpg - 9km/liter

[paolorenzo]

my ride - 2.0 liter engine, twin tip spark plugs, 5 star high ten, nology amplifier, simota air intake.
fuel economy using petron xcs - 8km/liter
using lpg - 9km/liter

Wow. Congratulations sir! One of the few with even better FC on LPG. Please let us know if there are some symptoms of "irregular" engine behaviour, like rough idling or delayed acceleration, etc.

Pictures naman ng conversion sir, if any. Also, you can post Thermoline's complete details (address, numbers, contact person), para ma-post ni GH sa LPG conversion providers list natin.

[noc_manila]

mga expert ask ko lang kase i observed pag naka park ako sa garage parang iba ang amoy ng exhaust ng car ko prang amoy lpg is it normal ? btw my car is toyota big body 93model newly overhaul so im sure indi blow by.

[noc_manila]

mga expert ask ko lang kase i observed pag naka park ako sa garage parang iba ang amoy ng exhaust ng car ko prang amoy lpg is it normal ? btw my car is toyota big body 93model carburator type newly overhaul so im sure indi blow by.

[Mile2]

mga expert ask ko lang kase i observed pag naka park ako sa garage parang iba ang amoy ng exhaust ng car ko prang amoy lpg is it normal ? btw my car is toyota big body 93model carburator type newly overhaul so im sure indi blow by.

I'm not an expert, but I have read in some auto LPG websites that it is called exhaust leak down.

To remedy this, run your car on petrol before turning off the engine.

[XOOMaster]

I'm not an expert, but I have read in some auto LPG websites that it is called exhaust leak down.

To remedy this, run your car on petrol before turning off the engine.

to add to Mile2.. I think this is just normal. Since your car is burning the LPG and it comes off your exhaust you can still smell it. If its very strong like some cabs your mixture must be very rich but if its just a light smell then nothing to worry about.

[bigMIKE]

Noticed that some refilling stations' lpg are cleaner than others. Check if your station have periodic cleaning schedule. We have noticed clogging (oil residue) injectors specially from stations with underground tanks.

If the injectors are clogged most installers would recommend a change of injectors and these are at least Php5K upwards depending on the brand. Valtek Italy has given us the authority to clean and recalibrate the injectors and this would be part of our warranty service.

Also just concluded conversion on a fleet of trucks to run on Recycled Vegetable Oil if anyone is interested

[XOOMaster]

Noticed that some refilling stations' lpg are cleaner than others. Check if your station have periodic cleaning schedule. We have noticed clogging (oil residue) injectors specially from stations with underground tanks.

If the injectors are clogged most installers would recommend a change of injectors and these are at least Php5K upwards depending on the brand. Valtek Italy has given us the authority to clean and recalibrate the injectors and this would be part of our warranty service.

Also just concluded conversion on a fleet of trucks to run on Recycled Vegetable Oil if anyone is interested

Hi bigMike how are you? I agree periodic check-ups have to be done to make sure that LPG filled in your car is clear of residue. We do that maintenance here at our station.
On residue going to your Valtek rail, installing a filter before going to the vaporizer plus another filter from vaporizer to your rail should solve some problems from these impurities.
Cheers!

[ghosthunter]

It seems there is a "small" problem with SGI-LPG systems being sensitive to the cleanliness of the LPG supply. Some Auto-LPG refueling stations seems to pump "contaminated" LPG. The contamination is oil.

Since LPG injectors were designed to flow gaseous LPG so oil (in liquid form) can clog up the injector from flowing properly.

Venturi LPG systems seems to be unaffected by this problem.

LPG stations who regularly clean their tanks are better because this will minimize the oil contamination. Along Shaw, the better stations seems to be CLEANFUEL and TOTAL. Worst offender along Shaw is Petron Shaw.

[Mile2]

So does it mean that the LPG fuel filter is not capable of filtering this kind of contaminant? as such particulate matter only?

[abetg]

is this also normal? amoy lpg sa engine bay lalo na sa side na kung nasaan ang vaporizer. noticeable din ang amoy. mas malakas amoy after a long drive.

on lpg, my tachometer reading is about 800rpm at idle (aircon off) and about 1000rpm with aircon on. ok din lang po ba ito?

[bigMIKE]

Hi bigMike how are you? I agree periodic check-ups have to be done to make sure that LPG filled in your car is clear of residue. We do that maintenance here at our station.
On residue going to your Valtek rail, installing a filter before going to the vaporizer plus another filter from vaporizer to your rail should solve some problems from these impurities.
Cheers!

We do put two filters but there are still residues that gets into the injectors. Anyway we do recommend certain stations to our clients to avoid this problem.

[n5110]

is this also normal? amoy lpg sa engine bay lalo na sa side na kung nasaan ang vaporizer. noticeable din ang amoy. mas malakas amoy after a long drive.

on lpg, my tachometer reading is about 800rpm at idle (aircon off) and about 1000rpm with aircon on. ok din lang po ba ito?

parang hinde normal ito, baka may leak better have it check boss. yung sa akin i can see white residue sa vaporizer pero walang amoy, not sure if this is leak. minomonitor ko pa.

about the tachometer reading parang hinde naka adjust ng tama yan, yung sa akin naka set sa 700-800 idle without AC pag naka AC naman di nalalayo, minsan nag ffluctuate yung idle, nag ddrop at 400 pero madali naman bumabalik sa 700 with or without AC. baka airfilter niyo madumi na.

[ghosthunter]

So does it mean that the LPG fuel filter is not capable of filtering this kind of contaminant? as such particulate matter only?

I think the LPG filter isn't design to separate liquids from the LPG itself.

Cars equipped with venturi LPG systems aren't affected. SGI systems with their injectors are the ones that will have problems if the oil contamination is severe enough.

[ghosthunter]

is this also normal? amoy lpg sa engine bay lalo na sa side na kung nasaan ang vaporizer. noticeable din ang amoy. mas malakas amoy after a long drive.

The smell would be normal since venturi lpg systems do have some "leak-down" from the intake manifold.

[ghosthunter]

I wonder if this has something to do with sparkplugs wearing out sooner on some Auto-LPG equipped cars?

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Side note:
http://www.bosch.com.au/content/language1/html/5673.htm

Check the "Suitable for LPG" note on these set of sparkplugs... do they know something we don't?



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