Auto-LPG Conversion Thread

[ghosthunter]

anybody who has a complete list of NAIADSS refilling stations? am really interested in this!

This is the list provided by NAIADSS:

Petron:
C-5
Makati Ave
Marcos Hi-way
Fairview
Mindanao Avenue
Shaw Blvd
NAIA Road Pasay

Manila Autogas:
Visayas Ave
Araneta Ave
Taft Ave

NAIADSS:
Pioneer st corner Sheridan st.
Edsa Extension, Pasay (soon to open)

[ghosthunter]

Try revving the engine as you do the switchover or just before you do the switchover from LPG to gas.

I'm wondering it might be the ignition timing that is causing the bad idle if I do a "live" switchover from LPG to gasoline.

[orly_andico]

dumb question.

if the NAIDSS system is a "dumb carburetor" type of LPG system, why not use the existing EFI system?

e.g. from LPG tank, have an expansion valve of some sort to reduce the pressure to the typical levels used in EFI cars (40psi?) then just connect that directly to the normal EFI fuel rail.

that way, it's the EFI which ends up deciding how much "gas" (or in this case, LPG) to dispense via the duration it toggles the injectors.

or is that exactly how the NAIDSS works? because if so, why is there a need for a separate LPG carburetor?

[Auto_Xer]

I'm wondering it might be the ignition timing that is causing the bad idle if I do a "live" switchover from LPG to gasoline.

It may actually be more of the engine is getting flooded. If you recall that at idle it's overly rich. So switching over from LPG to gasoline may mean that for a brief instant that are simultaneously being injected.
Revving it before doing so will hopefully "empty" the engine of the LPG to make room for gas.
Just a guess tho' since we're not really that familiar with how the system work.

[chuaed]

Thanks for your input.

So in your case, for petrol:
57L x 8KPL = 456Km
2,604.90 Pesos / 456Km = 5.71 Pesos/Km

For LPG,
57L x 6PKL = 342Km
1,413.60 Pesos / 342Km = 4.13 Pesos/Km.

That was approximately 27.67% savings.

If I decided for the LPG conversion, my ROI will be 1.5 years assuming the prices doesn't change. Hmmmmm.......

thanks for the computation... bigat kasi ng paa ko sa pedal, palagi kasi nagmamadali, kaya matakaw konsumo sa gasolina/lpg...

[chuaed]

Auto_Xer and Fusion R iisa lang ba iyan?
located sa e. rodriguez, quezon city...:drive1: thanks...

[ghosthunter]

Auto_Xer and Fusion R iisa lang ba iyan?
located sa e. rodriguez, quezon city...:drive1: thanks...

auto_xer is the person.

fusion-r is the shop where he works.

[ghosthunter]

It may actually be more of the engine is getting flooded. If you recall that at idle it's overly rich. So switching over from LPG to gasoline may mean that for a brief instant that are simultaneously being injected.
Revving it before doing so will hopefully "empty" the engine of the LPG to make room for gas.
Just a guess tho' since we're not really that familiar with how the system work.

true... the engine also idles for a good while even with the LPG system turned off. I guess the problem is a flooded engine so reving it should let me do a straight switch over without shutting down first.

[ghosthunter]

dumb question.

if the NAIDSS system is a "dumb carburetor" type of LPG system, why not use the existing EFI system?

e.g. from LPG tank, have an expansion valve of some sort to reduce the pressure to the typical levels used in EFI cars (40psi?) then just connect that directly to the normal EFI fuel rail.

that way, it's the EFI which ends up deciding how much "gas" (or in this case, LPG) to dispense via the duration it toggles the injectors.

or is that exactly how the NAIDSS works? because if so, why is there a need for a separate LPG carburetor?

In an ideal world, the LPG system should use the existing injectors, etc.

Adapting the NAIADSS system to fit to use existing EFI system would require custom work in virtually every car. That will take lots of time and money per car.

The NAIADSS LPG kit system is basically a kit designed to fit most cars without any modification (except some cutting for the plumbing) to the car. It does the job as long as you don't ask too much from it. (and you remember to adjust the ignition timing).

[ghosthunter]

I just had a cover done to mask up the tank in the trunk. No pics since it was finished a bit late (6:30pm) and it was a bit dark for my celfone camera to take a good pic.

The trunk wall was done in three pieces. The left & right side panels are fixed and the middle part is removable with a circular "port" to fit around the LPG meter. Also fitted around the "port" is a speaker grill to hide the LPG meter.

I'll take a pic tomorrow.

[topgun]

ghosthunter saan ka nag pagawa ng cover?

i need to have my tank cover made too how much was the damage and where? please pm me the shop thanks


Ako im very happy with my present set up tipid ako sa gas hahhaha =)

chuaed i will post pictures of my engine within the week as soon as i have time so that makita mo yung ginawa nila sa civic ko

[chuaed]

auto_xer is the person.

fusion-r is the shop where he works.

oh... okay... magkano nagastos mo sa pag tune ng car mo kay auto_xer?

[ghosthunter]

oh... okay... magkano nagastos mo sa pag tune ng car mo kay auto_xer?

Favor lang yung tuning. He also was interesting in LPG and getting some info about it.

From what info I got, you can do the same at any gasoline station. All you'll need is some ignition timing adjustment. Add 10 degrees advance timing to your current timing. The a/f adjustments didn't get to anywhere, we went back to the original setting after a few trials.

I am not sure if I will get better fuel milage though.

[ghosthunter]

ghosthunter saan ka nag pagawa ng cover?

i need to have my tank cover made too how much was the damage and where? please pm me the shop thanks

I had it made at SUN-X located at Auto_Centro in Cubao. Ask for Eric if he's around. Costed me P1,500... It might sound a lot of money but it was a lot of work to make it look simple, neat and clean. It also took roughly 2.5 hours from start to finish.

[chuaed]

Favor lang yung tuning. He also was interesting in LPG and getting some info about it.

From what info I got, you can do the same at any gasoline station. All you'll need is some ignition timing adjustment.

nakapunta na ako sa shop niya, purchased a blue raizin volt stabilizer... and have them quote for installation/customization of cold air intake for my car...

but a friend of mind advice against installing cold air intake coz my car is automatic...

sayang pina tune ko na din sa kanya...

[chuaed]

I had it made at SUN-X located at Auto_Centro in Cubao. Ask for Eric if he's around. Costed me P1,500... It might sound a lot of money but it was a lot of work to make it look simple, neat and clean. It also took roughly 2.5 hours from start to finish.

grabe... napamahal ang napagawa sa akin ah... tsk tsk... kainis

[ghosthunter]

grabe... napamahal ang napagawa sa akin ah... tsk tsk... kainis

how much was your tank cover?

[chuaed]

how much was your tank cover?

2,500 sa akin... lugi ng 1000 pesos:mad2:

[carwise]

mga sir at sis,di lang volvo ang ini lpg dito sa europe kahit jag,merc,bimmer at mas mahal na tsikot naka lpg,di lang sila nag titipid concern din po sila sa environment yun mga lang medyo doble ang price ng conversion kit dito kaya lang equipt with all the environment certificate,at euro spect.kaya feel mo na safe.saka sir di na tu tune up yung new generation lpg,pag ininstall yun i co configurate na to the max.kasi you have the oxy sensor to tell you the proper mixture cant cheat the new system.they have another ecu na ina adapt dun sa actual orig na ecu.at nag chage ng mixture according to the actual oxy presnt.ok. but then kung yung old type baka ginagamitan pa ng mixer baka nga kaya lang yun set at that particular atmospheric pressure.pag medyo less dense ang air iba na naman mix kelangan. at your service po pag may kelangan kayo info sa lpg. ty po sa pag basa

[theveed]

carwise: Are you implying that you can source out this more modern LPG conversion system? Please elaborate.

(Side note: Please add some spaces in between your sentences, hirap po basahin dikit-dikit)