Auto-LPG Conversion Thread

[ghosthunter]

Guys,

I'm planning to convert our VVT-i Innova to Auto-LPG...
Any recommend shops and around how much kaya?

Thanks

XOOM and GREENFUEL would be recommended. Their contact info is listed in this thread, just go back a page or two to see it.

As for the price, best to inquire with the installers because they can offer you options (and prices) regarding the installations, mainly in the type/size of LPG tank and where you place it.

[shibby75]

Im going to lpgenized my innova soon, i've read from the past post that there is one innova owner that used a split fuel system. What would be the pros.and cons of this system compared to the dual fuel system?


although im satisfied with my greenfuel convertion so far. . . Im a bit skeptical on their chosen ecu packaging. The ecu is encased on a plastic generic box that came from raon. Which i think really is the original packaging of ultragas ecu. I dont know if it would stand the test of time.

[ghosthunter]

Im going to lpgenized my innova soon, i've read from the past post that there is one innova owner that used a split fuel system. What would be the pros.and cons of this system compared to the dual fuel system?

although im satisfied with my greenfuel convertion so far. . . Im a bit skeptical on their chosen ecu packaging. The ecu is encased on a plastic generic box that came from raon. Which i think really is the original packaging of ultragas ecu. I dont know if it would stand the test of time.

Why not inquire with XOOM Auto-LPG?

[sirkosero]

i find lpg conversion interesting. i do have questions though:

what are the downside? a few months back, i got to talk to a mechanic while waiting or my parts in an autosupply. he was overhauling a vios. he said parang ginamitan daw ng acetelyne yung valvr sa damage. he blamed lpg on the cause.

also, when i ride an lpg powered taxi, there is a different smell. dont know how to describe it but when a taxi passes, i can smell that scent from the exhaust.

makati daw sa lalamunan, may shortness of breath and frrquent headachea daw pag exposed ka...

are any of these true? What caused this? im thinking of having an lpg conversion on my vios.

[Mile2]

*sirkosero,

Taxi ba yung nakita mong ino-overhauled? usually taxi's are abused and even neglected in terms of maintenance and then they blame everything on LPG. Taxi's don't even use correct coolant mixture for their radiators that is why you see Vios with pop up hoods around.

Properly installed LPG kit does not emit that unburned LPG on the exhaust and inside the cabin fume. Usually those taxi's that has the smelly cabin are taxi's that has a removed tank valve/pressure gauge cover. Usually taxi driver removed the cover when filling to see the gauge meter better and simply forgot to put it back or it is already broken and not locking anymore.

[ghosthunter]

i find lpg conversion interesting. i do have questions though:

what are the downside? a few months back, i got to talk to a mechanic while waiting or my parts in an autosupply. he was overhauling a vios. he said parang ginamitan daw ng acetelyne yung valvr sa damage. he blamed lpg on the cause.

taxi unit ba? ... if yes, taxi drivers tend to adjust the LPG mix to extreme lean. That can result in the damage you observed.

also, when i ride an lpg powered taxi, there is a different smell. dont know how to describe it but when a taxi passes, i can smell that scent from the exhaust.

And how well was the taxi's cabin sealed? Older taxi cabs are known to be abused so it's not uncommon for exhaust fumes to get into the cabin.

makati daw sa lalamunan, may shortness of breath and frrquent headachea daw pag exposed ka...

are any of these true? What caused this? im thinking of having an lpg conversion on my vios.

All those supposed symptoms have been answered (again and again) in this thread. Short answer is they are not true. If you want a more detailed answer, back-read the thread or use the search function.

[sirkosero]

thanks mile2 and GH.

yes, its a taxi. maybe its just running too lean kaya nasira. tama ba na even gasoline powered cars would exihibit the symptom kapag lean?

about the medical question, ive been back reading and searching various thread in differrent forum. usually ai gh sumasagot (incluing top gear)hehe

anyway, back to more question, in conversion, will they change the existing fuel rail or bubutasan lang nila? Di naman siguro sila gagawa ng bagong intake manifold diba?

whats the difference between and sgi and efi kit? I read sa website (greenfuel ata) na efi for those with metal intake manifold while sgi for thise with plastic manifold. whats the difference? Performance ba? pareho naman sila may ecm diba?

iba ba talaga amoy ng exhaust ng lpg compared sa regular gas? Or yung mabaho lang eh mga hindi properly tuned?

sorry dami tanong. very interesting topic we have here eh. :-)

[ghosthunter]

thanks mile2 and GH.

yes, its a taxi. maybe its just running too lean kaya nasira. tama ba na even gasoline powered cars would exihibit the symptom kapag lean?

Yes, gasoline or LPG, if you run the air-fuel mix too lean, it would have the same effects on the engine. With LPG kits, it is sometimes too easy to tamper with the LPG flow regulator to make it run leaner. Taxi drivers do that to save on LPG. Later they blame LPG use in damaging their engines.

I have been driving my Auto-LPG fed corolla for years, I have yet to experience any similar problems they have mentioned.

anyway, back to more question, in conversion, will they change the existing fuel rail or bubutasan lang nila? Di naman siguro sila gagawa ng bagong intake manifold diba?

They will disable the stock fuel injectorsl and install a new LPG fuel injectors into the intake manifold (if you are getting the SGI-LPG kit). The process will require to have a small hole to be drilled in each of the intake runners of the intake manifold. If you later have the Auto-LPG kit removed, a screw plug will cork the holes.

whats the difference between and sgi and efi kit? I read sa website (greenfuel ata) na efi for those with metal intake manifold while sgi for thise with plastic manifold. whats the difference? Performance ba? pareho naman sila may ecm diba?

I think you are asking about venturi and SGI kits.

SGI-LPG kits is similar to your modern gasoline fuel injection system. One injector per cylinder. Accurate fuel mixture. Power similar to stock.

Venturi LPG kits are similar to carburators or early single point fuel injection systems. LPG is mixed with the intake air as it enters the intake manifold. Amount of LPG flowed is regulated by vacuum pressure and regulator settings. The kit is cheaper and results in a small loss of engine power when compared to gasoline operation. Sensitive to air-filter condition and altitude changes. (example if you drive up to baguio, the engine will run rough/rich because of the lower air pressure).

iba ba talaga amoy ng exhaust ng lpg compared sa regular gas? Or yung mabaho lang eh mga hindi properly tuned?

If you run rich on LPG, more bad smell will come out. Running ok, the bad smell should be mild only.

[sirkosero]

thanks again GH.

id like to clarify that they will disable the stock injectors. If this is the case how will it run on unleaded? Will the lpg injectors work for both lpg and unleaded?

also, i read at greenfuel that they have a conversion shop in jprizal makati. i passed there but there seems to be no garage. will all brances be able to do conversion? Im.planning to visit some shops to do further research eh.

please pardon my questions as i am just on page 56 of the original thread though ive read a number of pages in this current thread.

[ghosthunter]

id like to clarify that they will disable the stock injectors. If this is the case how will it run on unleaded? Will the lpg injectors work for both lpg and unleaded?

When you are running on LPG, the stock gasoline fuel injectors are disabled. But if you are running on gasoline, its enabled. The fuel injectors are wired to an electronic box which selects which set of injectors to use.

When I said disabled, I meant electronically disabled. Not permanently disabled.

also, i read at greenfuel that they have a conversion shop in jprizal makati. i passed there but there seems to be no garage. will all brances be able to do conversion? Im.planning to visit some shops to do further research eh.

Not sure if they have a shop in makati. I guess warren hasn't told me of that development.