*1997
kelan daw matatapos ang LPG conversion ng sentra mo sabi ni mike (tagle)?
*1997
kelan daw matatapos ang LPG conversion ng sentra mo sabi ni mike (tagle)?
sorry double post
OT: bakit ganito tsikot, lagi nagdo double post?
Last edited by ezem; July 10th, 2008 at 08:34 PM. Reason: double post
Read the whole thread and learned a lot but I'm not sure if this has been asked before.
What's the expected lifespan of an LPG system?
hi guys,
i just had my honda city type Z converted last week sa Denso. C/o of mike tagle. Problem is di ko maramdaman ang savings. ang laki ng binaba ng mileage ko per liter of LPG. From 13 km/L of petrol naging 7.5 km/L sa LPG![]()
Para tuloy nagsisi ako nagpaconvert. Nasa tuning nga lang kaya to. I'm planning to bring it back to them tomorrow. NEed your advice. Anything else that i need to check?
i think it would be better if the Auto Lpg installer could also provide a Wideband Air-fuel Ratio Meter/Gauge that is attached to the lambda sensor, specially to those who opted for the antiquated Open and Closed looped system.
Air-fuel Ratio Meter will help the driver determin if the LPG being fed to the vehicle's engine is in the proper stoichometric ratio. By the way, what is the proper stoichmoetric ratio for LPG? (for gasoline its 14.7:1)
with this the autolpg technician could made proper adjustment to the vaporizer/venturi mixer which in turn will maximize engine power and improves fuel economy decrease CO emission without damaging the engine. (backfire or detonation)
I agree with you 100% chuaed. Consumers should be aware that a gas injection system is totally different from an emulator system. Even if some installers claim they put a small "computer" box into the system it does not mean there system is an injection system As a wrong system in the vehicle can actually do more harm than good.
bilis humaba ng thread... i tried reading from page 1 onward and from page 102 backward... hoping when i get through the middle i can make sense of what i read
got interested and started contacting some lpg installers via email.
1 installer suggested an emulator/venturi system for my '94 corolla 1.6L EFI. I asked if they have an SGI, he said that they have 1 but they don't recommend it for my car since an O2 sensor has to installed.
Can I insist the lpg installer (or any installer for that matter) to have the SGI kit installed for my car model (with the O2 installation of course)?
though i read in a local lpg installer website that SGI is applicable generally to 1999 and up vehicle models...
i believe there's just a 10-15K difference between SGI and the closed/open loop systems...
I'm willing to shell out a bit more cash upfront to retain my current car's performance. anyway, i'll recoup it eventually through "savings".
Thanks.
just had my camry converted to lpg by greenfuel...thanks alot mike, warren and jay!
minor glitches...loose plug on the meter...causing light to go on and off...
performance so far ok..cant feel any diff..powerloss very minor...un noticeable...
cant feel switch from gas to lpg and vise versa also..seemless so far...
will give you guys update on the FC as soon as i fill up second tank
At least someone does still give the effort to read the thread.
It's possible but for you to benefit fully from a SGI kit, you will need to have an oxygen sensor fitted. Then the LPG installer can link the sensor with their SGI system.1 installer suggested an emulator/venturi system for my '94 corolla 1.6L EFI. I asked if they have an SGI, he said that they have 1 but they don't recommend it for my car since an O2 sensor has to installed.
Can I insist the lpg installer (or any installer for that matter) to have the SGI kit installed for my car model (with the O2 installation of course)?
only major reason is 1999 and up cars have factory O2 sensors.though i read in a local lpg installer website that SGI is applicable generally to 1999 and up vehicle models...
[SIZE=3]2. The Smell of Stenching agent
can remain on your hands after filling for a very long time, even if you washed them once or twice. Also note that the smell of any released gas can 'hang' for days on any item it has contacted, if not washed away. A good example of this is a faulty vaporiser that we removed from a car but did not throw away. 6 months later it still Smelled of gas. This persistent smell can also result in unwarranted concern. [/SIZE]
[SIZE=3]LPG 'Leakdown'.[/SIZE]
[SIZE=3]Vehicles with single point mixer systems -[/SIZE]
[SIZE=3]When the vehicle's engine is switched off from gas operation, some gas will naturally be present in the induction system and remain unused. The gas is heavier than air and will tend to 'sink' to the lowest level possible. If the pipe from the inlet manifold (where the gas mixer is often sited) is sloping downward the remaining gas will seep down into the air filter and may well escape to atmosphere, resulting in the smell. [/SIZE]
[SIZE=3]This effect is called 'Gas leakdown'. It is not a dangerous condition as the gas is in low concentration, further reducing as it mixes with the surrounding air. The next time the engine is started, no gas will leak down as it is drawn into the engine, but the next time it is stopped identical condtions will arise and the smell may reappear. It would not be unreasonable for a driver to imagine that the smell is present when the car is running, giving the impression that the system is leaking all of the time. [/SIZE]
[SIZE=3]Leakdown may be further complicated. I have seen at least one car (Ford Granada Mk 3) where the sinking gas was able to find its way into the intake of the fresh air system. The car's ventilator fan had been left on to demist the screen, but then turned off with the ignition. The next time the engine was started (on gas or petrol) the fan came into operation and the gas effectively stored in the fresh air duct was blown into the car. (The cure for this would be to resite the fan's air intake away from leakdown.)[/SIZE]
[SIZE=3]Curing leakdown......[/SIZE]
[SIZE=3]There is a cure for leakdown, but sadly most customers press for the cheapest conversion possible and it is not included in their system.[/SIZE]
[SIZE=3]A timer device is available which wires into the car's ignition system and the gas solenoids. When the ignition is turned off, the gas is turned off by cutting power to the solenoids, but the engine will continue to run until all the gas present in the induction system is used up. No smell of gas can then occur as no leakdown is possible. Simple, effective, but almost universally ignored.[/SIZE]
[SIZE=3]There is a cheap alternative cure which is to always switch back to Petrol and allow the engine to idle for a minute or so before stopping it. No gas can then be left in the induction system and leakdown is zero.[/SIZE]
[SIZE=3]Multi Point Gas Injection Systems[/SIZE]
[SIZE=3]These can also display leakdown, but to a much lesser extent. There is far less gas in a shorter length of the induction system. As a result, the potential for leakdown is greatly reduced and often goes unnnoticed altogether.[/SIZE]
[SIZE=3]Conclusions [/SIZE]
[SIZE=3]1. Most reported'Smells of Gas' are not dangerous, and do not indicate that there is a problem with the gas system or its installation.[/SIZE]
[SIZE=3]Other factors can be to blame......[/SIZE]
[SIZE=3]An owner of a car converted elswhere complained that his car smelled of gas every time he filled the tank up. A long investigation was carried out but no leak or cause was found. Only when the customer later mentioned that he could smell gas when he filled his other vehicle up with Diesel did the penny drop....[/SIZE]
[SIZE=3]This Customer used the same gloves to fill his first vehicle with LPG and the second with Diesel.
The smell of gas was on the gloves.....[/SIZE]
[SIZE=3]2. In the case of leakdown the effect can be cured by asking the installer to fit timed shutdown equipment or the driver simply making sure than the engine is always run down on Petrol for at least one minute before stopping it.[/SIZE]
[SIZE=3]Some other facts [/SIZE]
[SIZE=3]People running Petrol cars have become accustomed to a slight smell of Petrol being present if the bonnet is opened. Likewise, those running Diesels are not the slightest bit surprised if they smell Diesel when they open the bonnet. Both are most likely to be the effect of fuel 'leakdown' from the induction system but are ignored as being normal.[/SIZE]
[SIZE=3]However, if the vehicle is converted to run on LPG, a new smell of gas (actually the 'Stenching Agent') can cause great alarm, but indicate no increase in risk. [/SIZE]
[SIZE=3]And finally...... Don't be TOO comforted by this explanation and ignore ALL 'Smells of Gas'! [/SIZE]
[SIZE=3] If you think you may have a leak, DO go and get it checked out (we'll do it for free) and make sure no serious condition exists. [/SIZE]
[SIZE=3]Just be a slightly more ready to accept that sometimes a whiff or two of gas smell does not indicate that your gas system has been badly fitted by your installer, nor that it is in a dangerous condition now. [/SIZE]
[SIZE=3]
lifted it from here
http://www.go-lpg.co.uk/
Mga BMW, Saab, Volvo, Mercedes, etc nagpapa LPG din pala.
[/SIZE]