Auto-LPG Conversion Thread

[paolorenzo]

I wonder if the P27,000 closed loop EFI kit is applicable to cars like Mazda3 and Honda City/Jazz.

Can you post the contact info (if you have it).

I guess puwede. I PM'd Vince (his Tsikot handle is zeagle). You can go to Coolmate, which is the Denso Service Center along Pasong Tamo.

Here is Denso Coolmate's Contact Page.

I think mura na ito, since it's almost the same price as NAIDSS, pero closed loop na siya. I chanced upon this, kasi when I was having my radiator serviced early last year, meron mga Korean na nag-i-install nung LPG kit. Vince told me that they were attempting to install a closed loop system, which was a better system compared to the usual kits being installed nowadays. Only when I read through this entire thread, did I understand what it was about.

Mas ok yata na alternative ito than SGI kits, kasi sakit sa bulsa nun eh. :ouch:

[tebs]

how about those with variable valve timing? would the SGI kits be able to still utilize the variable feature of the engine?

balak ko sana palagyan yung fortuner. hehehe lakas sa gas!

the next problem would be where to put the tank. in the place of the reserve tire (make a mount), or inside the cabin (in between the 2nd and 3rd row-nobody really seats at the back usually. bahala na sila maghanap ng upuan. hehehe )

[ghosthunter]

how about those with variable valve timing? would the SGI kits be able to still utilize the variable feature of the engine?

Yes because even the gasoline injectors are still positioned before the actual valves.

balak ko sana palagyan yung fortuner. hehehe lakas sa gas!

the next problem would be where to put the tank. in the place of the reserve tire (make a mount), or inside the cabin (in between the 2nd and 3rd row-nobody really seats at the back usually. bahala na sila maghanap ng upuan. hehehe )

[/quote]

I might suggest in the back area and positioned to one side so you can still access the entire length of the back of the fortuner.

[tebs]

hmm.. so parallel with the length of the vehicle? pwde rin. para at least yung isang side na seat, pwede pa rin magamit. ang takot ko lang is baka hindi pumantay yung weight sa side na yun.

come to think of it, sa isang side rin lang naka-position ang gas tank ata. if i remember it correctly.

thanks thanks! been reading this for a while na. sana magkaron ako ng go signal and ng budget. hehe

[hitomi]

saw a mazda 6 equipped with LPG at the Fort Strip last night, wow
hope LPG refuelling stations reach areas outside of Metro Manila so this'll be a viable option for more people.

[ghosthunter]

saw a mazda 6 equipped with LPG at the Fort Strip last night, wow
hope LPG refuelling stations reach areas outside of Metro Manila so this'll be a viable option for more people.

For the meantime, the lack of LPG refueling stations outside metro manila isn't that much of a hindrance (if you plan to travel long distances) since LPG converted vehicles can still run on gasoline if the need arises.

[eyshmechanic]

di ba pwede ordinary cooking lpg and tank? para sna sa wala pang stations

[ghosthunter]

di ba pwede ordinary cooking lpg and tank? para sna sa wala pang stations

Actually the LPG fuel for cooking and auto-LPG is the samething. The main difference is the refilling system since cooking LPG is sold by weight (net weight of the LPG tank) while auto-LPG is sold by the liter (as measured by the dispenser/pump).

[dencio1976]

I think you'll need to have the LPG kit re-tuned. My kit also performed poorly on it's first day with slow acceleration due to lean fuel settings.

You might also want to check/replace your air filter if it's getting quite dirty.

brandnew yung car para gawing taxi in a few weeks. ganun lang siya sa observation ko habang na sa garahe lang siya. pagbiglang baon sa pedal hesitant siya pero on normal driving, sarap niya dalahin. parang masmay power siya.

iba rin nga ang carb type kit na masmay hatak siya as tuning is easier. sa SGI kit ng macro kasi walang tuning ang recommended sa kanya as the ECU controls the mix via O2 sensor input feedback lang. just like an EFI ecu talaga, on small throttle opening, sa O2 sensor ang primary niya as ive read somewhere.

parang masmahina siya sa lower end pero na sa mid to high ang potential niya. or parang ganun. basta pag mataas na yung rpm kayang kaya pa niya. masmasarap siya dalahin kesa nung gas pa siya. true dahil masmura ang LPG kesa gas. hehe! tapos nun lang nakatikim ng 6.5k rpm yung car kasi pansin ko pag sa gas parang mahina bigay e. or baka iniisip ko lang talaga na mura ang LPG. hehe!

pero as tested sa kalsada. thats manila to cabuyao and back, sarap dalahin ng car. naenjoy ko talaga.

sgi kit rin po ba yung sa inyo sir GH?

[dencio1976]

parang ang sarap tuloy magbuo ng 2nd car with an SGI kit. from manila to cabuyao and back parang walang 200pesos nagamit ko e. may kasama nang upak yun. sarap ibyahe talaga. pag sa gas kasi 300pesos pag walang traffic. pero pag natraffic ako abot ng 400 mla-cab sa 105+ kms.

pero sarap nga kung magagawa na nilang may tap din sa air metering ang LPG ecu atleast. kasi delayed talaga ng mga millisecond to less than 1 second e kung sa O2 sensor lang ang feedback.

[chuaed]

sgi kit rin po ba yung sa inyo sir GH?

pareho setup namin ni Ghost... Naiadss carb type...

kakaingit kayo naka SGI Kit, bumisita ako dati kay Sharon sa Ortigas HomeDepot, at tinignan ng mechanic, tapos nakausap ko siya 50 thousand gagastosin ko dahil lahat papalitan...

[dencio1976]

pareho setup namin ni Ghost... Naiadss carb type...

kakaingit kayo naka SGI Kit, bumisita ako dati kay Sharon sa Ortigas HomeDepot, at tinignan ng mechanic, tapos nakausap ko siya 50 thousand gagastosin ko dahil lahat papalitan...

ok din naman carb type lalo na kung mahilig ka mag tono on a per need basis. yung sgi malinis talaga tingnan sa engine bay. d mo mahalata na LPG na siya. may tech specs ka ba ng kila sharon regarding their sgi kit?

talagang nakakaramdam ako ng potential sa LPG kahit pa magmahal ang per liter nito in terms of power. sulit talaga.

pag meron na ko second car papatanggal ko yung gas tank tapos paretrofit ko na lang ang LPG tank in it's place. sarap!! dati kasi puro tono lang ako ng LPG ng mga taxi namin. pero last week ko lang nasubukan talaga on a long drive/drive.

d ko lang alam kung malayo nga siya sa carb type in terms of performance. d pa ko nakasubok ng carb type pa sa long drive. pero im sure maganda nga rin.

[ghosthunter]

pag meron na ko second car papatanggal ko yung gas tank tapos paretrofit ko na lang ang LPG tank in it's place. sarap!! dati kasi puro tono lang ako ng LPG ng mga taxi namin. pero last week ko lang nasubukan talaga on a long drive/drive.

d ko lang alam kung malayo nga siya sa carb type in terms of performance. d pa ko nakasubok ng carb type pa sa long drive. pero im sure maganda nga rin.

From my experience, a LPG carb kit would provide roughly the same performance of the original EFI setup from low to mid range RPM. Performance tapers off when you are reaching the higher RPM range, probably due to the limits of the LPG carb kit design.

[tebs]

another question: same lang ba yung sinasabi nyong SGI and the closed-loop type kit?

[dencio1976]

another question: same lang ba yung sinasabi nyong SGI and the closed-loop type kit?

yung O2 sensors will make the difference e. meron kasi ako nakitang SGI equipped na walang O2 sensors. so hindi siya closed loop.

[boydapa]

mga bossing! nasubukan at napatunayan ko na totoo yun 10 degrees or something na advance sa timing na sinasabi nyo! talagang walang hatak pag LPG me! pero kng naka gas sya malakas.

tpos pag inadvance ko na sya dun ko na mararamdaman na may hatak sya!
question is assuming naka zero zero me at nilagyan ko marking sa distributor at sa katapat nyang metal as in ginuhitan. gano ba kalaki yan 10 degrees na yan o yun offset ng dalawang markings? sa tantya nyo ilan millimeters just by looking at itsa engine bay? offset in mm just by looking at the markings na ginawa ko? mahirap ksi mag degrees adjust ako di ko matantya.

also, assuming naiset ko na tamang 10degrees timing pag wala pa rin hatak iadjust ko lng ba yun lpg screw ng lpg kit hangang sa magkahatak sya? ganun lng ba yun? 2 adjustment 2 screws lng naman yun diba idle at gas? thnx!



update pa kayo

[ghosthunter]

Don't guess. Get a timing gun and use it to guide you in adjusting your engine's ignition timing. If you don't have one (or don't know how to use one) have your car adjusted at your friendly gasoline service station and mark the place where it runs well under LPG.

Note: what makes your car run well under LPG will make it run poorly under gasoline.

I used to have my car optimized to run on LPG but I have re-adjusted the timing to a compromise setting for both LPG & gasoline.

[boydapa]

ghosthunter:

Note: what makes your car run well under LPG will make it run poorly under gasoline.

I used to have my car optimized to run on LPG but I have re-adjusted the timing to a compromise setting for both LPG & gasoline.
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korek! ganun nga napansin ko parang econimics "you can not do more of one thing without sacrificing the other" . if you are trying to reach the optimum or peak setting of the other lalayo ka naman masyado dun sa peak/optimum setting ng gas. kaya ako ginitna ko na.

napatiming ko na ito kila speedyfix pa using gas tapos nilagyan ko ng mark ginuhitan ko para kahit anong ikot ko sa distributor alam ko ibalik sa dati. ang hindi ko naitanong is kng yun saetting at minarkahan ko is yun ang zero zero degrees well im assuming. kaya from there dun ako nagaadvance na using that reference mark.

maganda ksi performance ko sa gas ang lakas pa ng hatak ngyon pag naglpg ke walang hatak at ayaw umakyat ng rpm hangang 3k or 4k lng todo piga na yun. ang alam ko is gaya ng sabi nyo iadvance ko lng ng mga 10degrees tpos assuming na 10 degrees ko na sya or better yet mga 7deg ksi 12deg ata diba yun tama para median sa performance ako. so pag na 7deg ko na sya iadjust ko lng yun LPG screw hangang sa magkapower sya tama ba?

salamas

[ghosthunter]

For my car, the stock timing is 10 degrees BTDC. Optimum for LPG would be a 20 degree setting. It was set to 15 degrees as a compromise.

As for your car not going beyond 3K or 4K rpm under LPG, you might need to adjust the LPG flow regulator to give more flow. Adjust the flow rate screw half a turn and test. Even with the timing set to stock, your engine should be able to rev normally under LPG or gasoline.

[boydapa]

ay oo nga pala dead center degree pla yun wrong term pala yun zero zero. tinignan pla nun mekanik ni speedy yun specs under the hood hehe.

noon talaga takot ako kalikutin etong lpg buti tinuruan me nun lagi ko pinapatonohan and of course tsikot peeps---tulong tulong tyo sa pagkalikot hehe. tnx ghost dun sa half a turn technique mo di naituro sakin yun ah ksi lagi 1/4 ikot ko nyek halos walang epek yun pala half turn ng screw. pero kng maamoy yun lpg dun pa rin ba adjustan nun bawas lng hangang hindi na umamoy gaano tama ba?

sayang hindi ko inabutan yun close loop carb kit ng naiaaddss meron na pala ok yun ah napaaga ksi ako ng isang taon magpalagay eh. sayang.

also, para mapatunayan na safe ang lpg kit natin meron akong nabalitaang taxi na biglang nasunog yun hood dahil sa faulty electrical ata at sa kasawiang palad yun LPG ay......




hindi pumotok hehe!

dumating nlng yun mga pamatay sunog after a while---at alam nyo naman kng gano katagal dumating mga yan ayun atsaka lng napatay yun sunog o diba!