Hey everyone, has anyone successfully done liquid lpg conversion on a 3rd gen? I'm just a bit confused that some installers tell me that "we don't have a kit for magna". Isnt the same thing as vapor injection & can be adopted to any vehicle? Or is it a lot more complex in terms of ECU management & a specific kit must be made to suit a given car?

The reason im so eager to get it are the benefits of such system

About 10% more power then petrol
Can be dedicated LPG system
Perfect for forced induction (well i guess VSI systems are also)
Not to mention awesome cooling effect of liquid LPG when injected

Yes its a lot more complex as it is liquid LPG still under high pressure injected direcly into each combustion chamber and power gains are due to large drop in temperature of induction charge as liquid turns to gas. No one has heard of a Magna set up and there probably never will be now as the cars are too old to justify making one.

Vapour injection is gas injection into the individual inlets to each cylinder and is available for Magnas and is much more efficient than earlier vapour ring systems being very close to petrol power output with only a slight loss of fuel economy. Its at least 50% dearer to install than old style vapour ring where a gas diffuser ring is placed before the throttle body which caused a fairly big power loss and reduced fuel efficiency but as the fuel is much cheaper costs are still lower.

May be good to direct this question to our Gas sponsor

Hey everyone, has anyone successfully done liquid lpg conversion on a 3rd gen? I'm just a bit confused that some installers tell me that "we don't have a kit for magna". Isnt the same thing as vapor injection & can be adopted to any vehicle? Or is it a lot more complex in terms of ECU management & a specific kit must be made to suit a given car?

The reason im so eager to get it are the benefits of such system

About 10% more power then petrol
Can be dedicated LPG system
Perfect for forced induction (well i guess VSI systems are also)
Not to mention awesome cooling effect of liquid LPG when injected

It's a very different set-up than the SVI conversion. Nothing about the kits are the same at all, even the tanks are different. There's no separate ECU required for liquid LPG either. But as you say, if it's been done for any 6cyl, you'd think it could be adapted to another 6cyl.

It can be done but as you may be the first, it'll probaly take a bit longer than a 'normal' conversion. Give these guys (http://www.australianlpgwarehouse.com.au/) a call & they'll put you in the right direction. They quoted me $4,500 a year ago, when I was enquiring about it.

You'll probably find it'll be cheaper to go the SVI route, but if you're keen........Good Luck!!

Yep will do, i dont really mind if it takes longer to do, i got list of installers around my area, will make few phone calls today..

Well basically like you said, it most definitely can be done, car will have to be in a workshop for 1-2 weeks, from what ive been told JTG systems are lot harder to re tune due to absence of dedicated ECU. Basically waiting on a quote now......

Hey Al.
They are the guys i got my SVI system through and your've seen how well/neat that job is.
They supply Eurogas systems which are one of the if not the best systems on the market.

May be good to direct this question to our Gas sponsorWho are quite vocally against liquid injection, they've answered this before.

Hey Al.
They are the guys i got my SVI system through and your've seen how well/neat that job is.
They supply Eurogas systems which are one of the if not the best systems on the market.

True, but they're all brilliant as long as they don't cease to function correctly. Many places have told me that my system isn't that great, but I've had it on 2 cars now, with well over 100,000kms on it & the only thing that failed was a map sensor. Other than that it's been flawless - the install is a bit sloppy, but only Mal cares about that...lol lol

To the OP: If that's the system you want, then pursue it. You may be doing us all here a favour by being the first & being nvolved in the development of a system that gives more power whilst reducing the fuel bill!!

Who are quite vocally against liquid injection, they've answered this before.

hahah i remember that lol

I called up n got $4900 - told me diffence isnt much in comparison to petrol - with "these magna engines" he said about 5% as gud a petrol... didnt think thats gud seeing the $4900 price tag! i mean beta off just going SVI - has anyone here gone from mixer style to SVI - would the economy be much diff there? im currently on mixer style wana go svi.

See i rekon a lot of them talk out of their ass, how can they possible know what "these magna engines" can deliver if they never done liquid injection on one? $4900 is not actually not too bad considering its a whole new setup including the tank. I got a quote $2500 to upgrade to VSI (i got mixer setup atm), which is damn waste considering it cost me $2900 (minus $2000 rebate) to get a mixer setup. Its a shame that you can not reuse the tank for liquid injection.

Just make sure that you see some other installs as well, I have seen some real rubbish of late, one where the installer cut into the freaking fire wall to install the gas line, the car will never pass a RWC and if the owner goes to sell it will most likely sell it to a wrecker now.

Al knows what i think of Gas but if you are going to get it, get it done somewhere they are neat, have a good rep and will guarentee the install

See i rekon a lot of them talk out of their ass, how can they possible know what "these magna engines" can deliver if they never done liquid injection on one? $4900 is not actually not too bad considering its a whole new setup including the tank. I got a quote $2500 to upgrade to VSI (i got mixer setup atm), which is damn waste considering it cost me $2900 (minus $2000 rebate) to get a mixer setup. Its a shame that you can not reuse the tank for liquid injection.

How long ago did you get the mixer set-up installed? Have you considered selling your tank, or even the entire set-up afterwards?

I'm not sure, but the way I see it, if you de-register the LPG from the car, then in a year or so re-gas it, you'd probably still be able to claim - citing difficulties with the previous install as the reason for discarding the LPG.


How about going into see an install they've done on a faclon or similar & see how much stuff is going to be put into the engine bay? From what I can gather, there won't be much - leaves less room for an untidy job, IMHO.

It just seems so pointless for me to rip up my old tank, i mean how much would i be able to sell it for, considering government still offers rebates, who the hell would want a second hand mixer equipment? I spoke with Les (our sponsor), i will most likely get VSI kit from him with solo injectors (instead of rails).

how much would that cost?

OH yea i been looking into upgrading my mixer system to an svi also ! i got quotes of $2500-$3500

At one stage i was looking at the kit on fleabay for $500 but i dono man - like there no info on brand or anythin like that so i cant do any research on it. Stil waiting for a reply from the guy.

aparently the "under hood" acc costs onli $1100 - the rest is labor!

now im all confused whether to do it or not - i mean i wudlnt spend 2500 on it - i think thats too much - if ur doing it for economy lol it wuld take so long to pay that off.. for power lol then i understand

:)

Yea it would take forever SVI system to pay for itself considering you are upgrading from gas to gas. Perfomance wise, i dunno at best you ll just match petrol. Everytime i want to show my taillights to falconore i just swith to petrol. So whats exactly the point then, slighly better economy? Im upgrading to turbo within next few weeks althrough mixer can run turbo just fine but thats where economy & power difference become much more noticiable.

yea gud point i think il jsut keep the mixer setup. :) soudns like no point in doing it - i mean wat is the economy difernce anyway? does anyone have SVI manual 3.5L ? that actualy has measured ks/per L
mine does about 8Kms per Litre of LPG. the way i count it is i fill up al teh way drive it to empty fill up again devide the ks i done by the L i filled it up with. so 500km by 60liters etc.

Thats actually a lot better what im getting, only around 450 on 70 litres.......

Thats actually a lot better what im getting, only around 450 on 70 litres.......

yea after i changed my oxygen sensor :) i got great mileage :)

mines Manual - i change at about 2000- 2500rpm.