Last Saturdays's article in Sydney Morning Herald reasds that the only cars that can be converted to run on LPG are Falcon, Commodore, Camry, Corolla, Forrester and Ford Territory. The article goes on to say the Ford factory system is old technology and the Commodore system is better (multipoint and liquid). I was of the opinion that some Magnas were factory fitted to run on dual fuel. What about Veradas?? Converters I have spoken to say that if the car doesn't have the special valves and valve guides, a special oil injection system can be fitted. I don't want that. Converters also say the Owners manual will say whether the engine is suitable for LPG. Does anyone know if there are different systems available for fitment to Magnas/Veradas. Other than single point versus multipoint and Liquid versus (gas?) what else should one look for? Does anyone have a list of the Magna/ Veradas that were factory fitted and a list of which are suitable for conversion without stuffing around with extra oil being used to protect the valves and seats.

My dads TJ 2 Magna has factory dedicated LPG (not dual fuel)

Most non performance cars can I think, just depends how much you want to modify them

The extra oil they refer to is most proabably the flash lube stuff. Check your performance shop or super cheap or whoever to see what it is. Nothing complex about it. Keeps the valves and seats moist. Bit like a womans ..........

Regards

The extra oil they refer to is most proabably the flash lube stuff. Check your performance shop or super cheap or whoever to see what it is. Nothing complex about it. Keeps the valves and seats moist. Bit like a womans ..........

Regards

nose??? elbow??? leg?? im confused lol

That flash lube stuff (im a noob here), is that the little display autobarn/supercheap where you can turn the little cogs and see how the oil sticks better with the extra products? if so can that stuff be used on our petrol engines and will it make better? Or is it no good

nose??? elbow??? leg?? im confused lol

That flash lube stuff (im a noob here), is that the little display autobarn/supercheap where you can turn the little cogs and see how the oil sticks better with the extra products? if so can that stuff be used on our petrol engines and will it make better? Or is it no good


Nah its a little bottle that you mount in the engine bay that you connect to a vacuum line in the intake.
Its got a little tap on it that you adjust to drip once every 10 secs roughly.
Every 6 or 7 tanks of petrol you just top up the bottle.
Its really easy to fit:D

My dads TJ 2 Magna has factory dedicated LPG (not dual fuel)

Most non performance cars can I think, just depends how much you want to modify them
OK. LPG is much better than petrol in a performance car as it has a much higher RON and MON. Meaning that compression can be much higher before detonation will occur. LPG is better in cars that have a long stroke due to it being a slightly slower burning fuel. LPG also, unlike petrol, doesn't wash the oil from the cylinder walls, so less cylinder/piston wear results.

As far as I know, no factory car in the world has come out with liquid injection, mainly due to problems with start up as the pressures to keep autogas a liquid at the temperatures present in the engine bay can be as high as 27 bar (400psig). Liquid injection systems have been made but I'm fairly certain that they are still all aftermarket. Almost all of the systems out there at the moment inject the LPG into the air just after the throttle body, in a gaseous state. A sequential liquid injection system would definately be the best you could get as it would not only inject a metred amount of fuel at a certain time but would also cool the air down significantly during the liquid->gas phase change.

The LPG system in the Ford e-gas models would probably **** over any other non-dedicated system as the ECU has been tuned to run on LPG only. So timing would be different over the entire rpm/load map and compression would probably also have been raised.

From what I have been able to gather, some Magnas/Veradas came out with LPG heads, which probably only consist of having harder valve seats. The best way to determine if you have an 'LPG head' is to contact a local dealer with you VIN no. and get them to check it up. My personal opinion though is that you could easily run any modern head on LPG without changing to harder valve seats for easily 100 000k's plus without any trouble.

you can run lpg in any car
it was the older cars that had problems because of the valve seats

if worried about valves burning out run fuel and gas

most new systems will start on fuel then change to lpg anyways

That flash lube stuff (im a noob here), is that the little display autobarn/supercheap where you can turn the little cogs and see how the oil sticks better with the extra products? if so can that stuff be used on our petrol engines and will it make better? Or is it no good

Thats Lucas' Oil Stabiliser. Good stuff for old engines but has not a lot to do with Flash Lube unfortunately. :)

Fords factory fitted since the e series EF for example have a seperate computer, they start on petrol always to ensure an easy start in all conditions, then switch to gas... they are the best cars for gas as the power loss is minimal and they run well.... the dedicated gas versions dont have fuel injectors etc... so it not easy to convert it to run on petrol...


LPG will never make more power than ULP! regardless of octane rating, you need super high compression, different ign and cam timing plugs etc...to make the most of it and then it wouldnt work well on petrol, LPG is less dense and produces less energey than Petrol....

the EF for example had a 157kw petrol or a 150kw factory dual fuel option, so the power drop isnt much, yes you use 1/3rd more gas than petrol, but considering the price it works out well...

the biggest benefit from gas is the cleaner emissions and no carbon build up, i fitted a new exhaust and always ran it on gas and after 2000km the exhaust was stil clean inside!! no black stuff!!

you need hardend valve seats, just like going from Super to Unleaded.... but if your converting an OLDER car XD for example thats done several hundred 000km it's not worth doing as by the time you need to replace the valve seats etc... the motor will be finnished anyway, similar story for most well used vehicles...

My personal opinion though is that you could easily run any modern head on LPG without changing to harder valve seats for easily 100 000k's plus without any trouble.

Holden is having problems with their new Rodeo (new motor) during LPG testing, they noticed valve seat recession as early as 30-50,000 km. They are rectifying the problem with LPG compatible heads, but how many other cars are on the market without hardened valve seats?

all new cars that run on ULP have hardened valve seats!

i was told by the dealer (when i brought my rodeo) that the problems that they had been having with the rodeo were heads cracking, not valve seats.

all new cars that run on ULP have hardened valve seats!

i was told by the dealer (when i brought my rodeo) that the problems that they had been having with the rodeo were heads cracking, not valve seats.

I read an article stating what I said in my earlier post.:P

ahhhhh you said the NEW MOTOR which is the alloytech, the one i had was the isuzu quad cam... not sure on the probs with the new one, but holdens have never been as good to convet to gas as fords....

maybe holdens problem is the cheap chinese parts they use to build them.... look out we'll start seeing holdens on ebay from china soon lol rember the pocketbike craze same thing ;)