Auto-LPG Conversion Thread

[aejhayl17]

thanks sir GH and mile,

i was able to survey this thread and follow it through out posts but cant seem to find the major difference of SGI and venturi kits. most of them were comparisons by experience. anyways, i will just google it.

there are more complaints about the venturi than the SGI, especially those who have carbed engines.

or


there are more LPG-equipped carbed engines than LPG-EFI's

[ghosthunter]

thanks sir GH and mile,

i was able to survey this thread and follow it through out posts but cant seem to find the major difference of SGI and venturi kits. most of them were comparisons by experience. anyways, i will just google it.

there are more complaints about the venturi than the SGI, especially those who have carbed engines.

or

there are more LPG-equipped carbed engines than LPG-EFI's

Most taxi-cabs use venturi type kits, especially those older taxi cabs. The newer cabs might have SGI kits installed but that's not true with every cab company.

Venturi kits can be adjusted by the owner/driver of the car. Hence a taxi cab driver can screw-up the settings of the lpg kit by turning the adjustment screws the wrong way.

SGI kits have an electronic box which needs a computer to re-program. So a trained technicial is needed to make any adjustments. Less chance of making wrong adjustments.

Advantage of venturi kits is it is more basic. Less parts. Less stuff to go wrong. Disadvantage of venturi kits is it is also more basic, less compensation for changes like a dirty air filter or change in air pressure due to altitude. Oily LPG is not a problem with venturi type kits though.

[juanluna]

Recently, I have converted my Car to LPG from Econogas in Quezon City using there SGI Vogas Plus kit with dual core ECU (Motorola). My FC=8km./Li. and in my observation I have'nt notice any changes in power loss from the engine between LPG to gas or vice versa. Having torodial tank installed it cost me 50K.

[g26]

i'm having a problem on my lpg equipped '05 vios a/t.
after having used it smoothly for 1.5 yrs, nagkakaroon na sya ng intermittent lack of power on 2,500 rpm or higher. specially when driving uphill. (like julia vargas in pasig.) talagang nabibitin. but when i switch to gasoline, everything becomes normal. i've brought it back thrice to greenfuel pero problem keeps on coming back. wala na doon yun dating mechanics and wala na rin si big mike. and dahil off-warranty na, they keep charging me fees. ok lang sana kung nasosolve. kaso hindi.
can anyone help?

[dragonmate]

i've brought it back thrice to greenfuel pero problem keeps on coming back. wala na doon yun dating mechanics and wala na rin si big mike. and dahil off-warranty na, they keep charging me fees. ok lang sana kung nasosolve. kaso hindi.
can anyone help?

I have no problem now with my Greenfuel kit, but I do share the same concern over their ability now to provide after sales service. My last service there when my car was still under warranty was also disappointing.
Thus, I'm seriously considering converting to another kit brand. Mike of Vogas tells me that they might be able to retain some parts--gas tank, injectors, etc. I just haven't had the time to bring my car there for a proper assessment.

[n5110]

yung sa akin mag 2 2 years na this august and so far wala akong problema going uphill. ang talagang problema lang sa lpg yung idling minsan erratic. my last visit to greenfuel was nov last year, out of warranty na yun kit ko so i need to pay 500 bucks to overhaul the vaporizer after that until today no major problems.

ito lang ang problema sa greenfuel, yung after sales service nila nag slide na rin at wala na yung dating magagaling mag tune ng lpg. sana magkaroon na ng lpg shop dito sa south.

btw, mine is venturi kit.

[bigMIKE]

yung sa akin mag 2 2 years na this august and so far wala akong problema going uphill. ang talagang problema lang sa lpg yung idling minsan erratic. my last visit to greenfuel was nov last year, out of warranty na yun kit ko so i need to pay 500 bucks to overhaul the vaporizer after that until today no major problems.

ito lang ang problema sa greenfuel, yung after sales service nila nag slide na rin at wala na yung dating magagaling mag tune ng lpg. sana magkaroon na ng lpg shop dito sa south.

btw, mine is venturi kit.

Hi Sir Dragonmate and N5110, we had some problems with our mechanics at the start of the year but we were able to get back our old timer who was with us from the start and the our newer mechanic has just gone through the required training with Tesda. Rest assured as I mentioned earlier, we are committed to giving you the best after sales service possible. Should any of you have any concerns please do not hesitate to get in touch with me. Thanks! Warren.

[XOOMaster]

i'm having a problem on my lpg equipped '05 vios a/t.
after having used it smoothly for 1.5 yrs, nagkakaroon na sya ng intermittent lack of power on 2,500 rpm or higher. specially when driving uphill. (like julia vargas in pasig.) talagang nabibitin. but when i switch to gasoline, everything becomes normal. i've brought it back thrice to greenfuel pero problem keeps on coming back. wala na doon yun dating mechanics and wala na rin si big mike. and dahil off-warranty na, they keep charging me fees. ok lang sana kung nasosolve. kaso hindi.
can anyone help?

Hi guys,
I'd like to extend a helping hand with your calibration problems. my RSI kit has the same ECU. Lets take a look and access the problem, see where it goes from there.
Regards!

[niky]

Still have the same issue, but after fixing my solenoids, it's only apparent when the fuel level is already very low. Exact same symptoms... choking at 2500+ rpm. Starts at an exact rpm, which is the weird thing.

Finally took a long trip with the retuned kit. Got 320 kms out of my "full tank", about 39 liters (45 liter tank). That's with about 50 kilometers at ultra-low speeds and in crushing traffic, which usually gets me down to 5 km/l... so I'm getting around 9 km/l in fast highway driving... not too bad, wish it were better.

[bigMIKE]

i'm having a problem on my lpg equipped '05 vios a/t.
after having used it smoothly for 1.5 yrs, nagkakaroon na sya ng intermittent lack of power on 2,500 rpm or higher. specially when driving uphill. (like julia vargas in pasig.) talagang nabibitin. but when i switch to gasoline, everything becomes normal. i've brought it back thrice to greenfuel pero problem keeps on coming back. wala na doon yun dating mechanics and wala na rin si big mike. and dahil off-warranty na, they keep charging me fees. ok lang sana kung nasosolve. kaso hindi.
can anyone help?

Hi G26. It was good talking to you last night. Apologies if there was a lapse on our part regarding your vehicle. Our office staff was not able to determine that the problem has always been the same one so we will make sure to fix it without additional charges. We commit to give you the best service that we can so should there be any problem please ask for me directly.

Thank you for your continued support. Warren

[g26]

Hi G26. It was good talking to you last night. Apologies if there was a lapse on our part regarding your vehicle. Our office staff was not able to determine that the problem has always been the same one so we will make sure to fix it without additional charges. We commit to give you the best service that we can so should there be any problem please ask for me directly.

Thank you for your continued support. Warren

Thank you very much Warren for the fast response and the assurance to solve my lpg problem. That was a relief to hear. I was not able to bring my car the day you texted me. I'll be coming over as soon as i get back from my week-long out-of-town trip.
Thanks again!!

[rorymabangis]

Hi.

that would be ngk bp6es.

hi again. can i use ngk bp8es. kasi dati ginagamit ko is ngk bp5es. since somewhere in the forums they advice to use colder plugs , pwede kaya itong spark plug na ito? kindly advise. magpatune up na kasi ako next week.

thank you and more power to all

rory

[n5110]

Sir, wala pa po atang nakagamit ng 8 sang rating. karamihan 1 step colder from the plug stated sa manual ng kotse. gamit ko 6bps din. so far mas consistent ang respponse nito compared sa 5bps. try niyo muna ang 1 step colder.

[vinj]

With the NGK LPG/CNG plugs i'm using now. After 1,000kms its still running quite well; what i noticed was the car (Altis 07) now runs lighter on LPG (slightly easier revving at the top end) as against when i'm on gasoline. Before it was the opposite (car has a "lighter feel" when on gasoline mode). The plugs were installed with no adjustments made to the LPG system BTW.

On my FC, i'll know if it improved in the next few weeks as my FC usually drops then increases over time after i change spark plugs.

There's also an Iridium LPG plug although i have not checked; got this from the web: BKR6EIX-LPG and BPR6EIX-LPG.

[kikoteng]

Hi.

Normally, the advise i read in the forums is to go one step colder. So, BP6ES would be 'the one step colder plug' in your case.

Going for BP8ES would mean 3 steps colder. Malayo from BP5ES.

Well, from what I read from either NGK or BOSCH website (cant remember which), using a spark plug of the right temp would mean better combustion.

If you are using too hot a plug, the spark plug tips, after a while, get deformed due to excessive temp.

If you are using too cold a plug, you would have carbon fouling ... so mangingitim yung mga spark plug tips after some time. The reason is that lower than ideal engine temp would result in incomplete combustion. Therefore, it will stick to your sparks. Your FC might get worse as well.

Again, based on their advise.. if you are unsure, it is better to err on the side of using a colder plug. If your sparks dont have carbon fouling after a while, then its ok. OTOH, using too hot a plug (resulting in higher than ideal engine temp) might damage your engine in the long run.

If it were me, I'd go for bp6es first. But of course if you're itching to see what happens on using bp8es, I dont see any harm in trying it. But I'd have a spare set of BP6ES plugs with all the necessary tools to change those sparks in the car all the time. Just in case....

BTW, sir Vinj did mention NGK LPG plugs, I think they should be worth trying. Even Bosch has LPG plugs.


Kiko

hi again. can i use ngk bp8es. kasi dati ginagamit ko is ngk bp5es. since somewhere in the forums they advice to use colder plugs , pwede kaya itong spark plug na ito? kindly advise. magpatune up na kasi ako next week.

thank you and more power to all

rory

[mariolouis]

sparkplugs does not make your engine run colder or hotter. the terms hot and cold refer to the temperature of the tip of the sparkplug.

[speed unlimited]

Napuna ko lang pag Lpg sasakyan mo halos puti ang sunog nito at hindi masyado dumudumi.

[kenz17]

Hi everyone!

I'm new to the forum and new to this site too. Just wanna ask if what's the best kit for converting my Ford expedition 2000 model to LPG. Is there a kit that will last for alot of years? I dont have any idea in auto-lpg kits but I want to learn and be part of the thread!I hope you experts can help me out.=) thank you!

[XOOMaster]

Bro,
In general all conversion kits perform the same. The most important thing is that you find a shop who is licensed by DTI as well as good in workmanship. a Kit could have good reviews abroad but if an installer here does not do a good job installing it, it won't perform well.

[niky]

Most kits are similar. The biggest factors in longevity is type of use (traffic or not... traffic heat is bad for the electronics), proper tuning and quality of LPG supply (avoid stations with contaminated LPG).