Duel Fuel Question.

[Goon]

Hey all

Just wondering on what sort of price id be looking at to install gas 4 my VC ?

Cheers.

[Outlaw Torn]

ive just gone through and got mine done, pipes $180, mixer and installation certification around the $260 mark, the tank im not sure on, mine was pulled out of a wreck and checked out alright so that was all good.
as for the final cert. cost $50

Advice, make sure ur tank is current with its pressure test, around $80 this causes problems with putting the tank in, then realizing it needs to be tested, take it out, then put it in again, a REALLY big pain.

Where are u plannin on puttin tank, as this can cause extra expenses in labour.

[craigvk]

Hey Goon you want to put everything in your car!

Ok, I have some good experience with this as I have done numerous gas things with my car so I can advise you on any questions you may have.

What you need is:

* Gas tank. 60-70 litre for your car. The tank must have a solenoid on the output line as it's illegal without it. The tank must be in date. They need restesting every 10 years or the cops/RTA can give you a canary.
* Gas tank brackets.
* Gas line to go from the tank to the engine bay solenoid.
* Saddle clamps for the gas line to mount it on the chassis.
* LPG filler and hose. Place it in the petrol area.
* A steel plate made up and gas filler head welded to the plate, petrol filler pipe cut and a proper fuel hose sleeved over it to enable you to lower the filler to fit the gas head.
* Wiring for the gas system. On/Off/On switch & bracket to mount it.
* Gas mixer. Impco gas mixer & air filter assembly to suit a Varajet.
* Engine bay solenoid/filter unit. (Goes before the converter/regulator)
* A suitable converter/regulator unit to convert the liquid gas to vapour.
* You will also need two water hoses to connect to the converter otherwise it will freeze. The ideal setup is one hose comes from your thermostat and the other from the water pump. Then the two heater hoses connect to the thermostat and the water pump too.
* A safety switch/lpg switch module. This is a unit that makes the engine bay solenoid only turn on the flow of gas when cranking the motor or the motor running. It's connected to the -ve side of the coil, 12V switch, solenoid and ground.
* Gas hose for gas mixer to converter.
* LPG gas stickers for number plates. Don't forget this. If the fire brigade attend your car, they need to know there is a big gas tank in your car full of gas!


I think that's about it. I would strongly advise you not to do anything with LPG systems unless you are dead certain you know what you are doing. There has been all sorts of stories of explosions from car gas units.


A gas joint will charge $2K-$3K for an installation. I have seen whole gas setups on ebay go for $200-$300. Be careful what you are buying and only stuff with it if you know what you are doing. In all cases, no smoking near gas. :my:

[Outlaw Torn]

good advice, ill get some pics up of my system soon, probably this weekend, but may not be helpful cos its NZ standards

[craigvk]

Thanks mate.

Here is a few pics of the process with installing my gas head/petrol filler assembly. The bloke in the pic is a great mate of mine who is my cousins husband and is a farmer and jack of all trades.

[Goon]

Thanks mates

I'm really looking and intrested in putting gas in my car in the near future and this infomation is very handy to know, i'll 4 sure look back into this subject now and again to gather up all the knowledge i'll need to know before doing such a job / getting it done, oh and not to forget save up some dosh to

lol Zoist mate, i wonder what else i need 4 my beauty

[craigvk]

lol Zoist mate, i wonder what else i need 4 my beauty

How about a nice set of 6x9" speakers and a nice mp3 CD player. Or maybe a steam clean of the carpets and new car mats?

I am looking to get a new parcel shelf and cerulean pile then I can install my 6x9 speakers. I am also going to get new boot carpet and a boot rubber mat.

[Goon]

How about a nice set of 6x9" speakers and a nice mp3 CD player. Or maybe a steam clean of the carpets and new car mats?

I am looking to get a new parcel shelf and cerulean pile then I can install my 6x9 speakers. I am also going to get new boot carpet and a boot rubber mat.

Already got the stereo system in order, 6x9 speakers in the back, 4's in the front connected to the Xplod mp3 player I actually got the setup for my ride when it would been at 15%

As for the interior .... Future pictures will show that

[Outlaw Torn]

just had mine certified, in all honesty i did all the work myself cept for the mixer, ill pm u a copy of the cert sheet so that u know wot ur looking for and roughly wot needs to be done.

Cheapest option ive come across is to install it urself and get a mechanic to do the mixer, then get a certified mechanic to certify the installation, then go for the final cert.

its wot ive done and got it done straight thru.

[craigvk]

Could you pm me a copy of it? I'd like to look at it.

The gas mixer is an easy thing to adjust providing the diaphragm is in good order.

[Outlaw Torn]

no prob, ill do that tonight, also ill get pics this weekend for yas if tou want it.

[Goon]

Thanks mate i'd like mine in good working order

Min engine sounds ready and tuned but u know

Cheers

[Outlaw Torn]

here ya go, its an attachment so i couldnt figure out how to pm it

REMEMBER, THESE ARE TO NEW ZEALAND STANDARD!!!

[craigvk]

Interesting, thanks.

[craigvk]

Already got the stereo system in order, 6x9 speakers in the back, 4's in the front connected to the Xplod mp3 player I actually got the setup for my ride when it would been at 15%

As for the interior .... Future pictures will show that

What about chroming up the engine bay with a chrome rocker cover, braided hoses and chrome air filter housing?

Nah, if it was me, the first thing I did with my car was inspected all the bushes under the car and replaced some of them that were worn with nolathane ones. I think safety is better than a fancy mp3 player.

[Goon]

LOL mate the Mp3 was a gift

Everythings going great atm, no more noisy rear drum brakes after a few laps up the road on a sunday Extractors are working great apart from cold mornings.... no chrome filter housing either future plans also have EFI with pod in mind

I got plans for lpg after roadworthy which then ill focus on engine parts and improving the safety.. Back to the interior and paint!

[james_and_his_vp]

is it true that the car will use twice as much gas as petrol? or is it really worth it considering fuel prices???

[Outlaw Torn]

well, 40 bucks LPG gets me 500 ks, whereas 40 bucks petrol gives me around the 150 - 200 k mark.
go figure

[craigvk]

80 litres of gas costs about $40. 70 litres of petrol costs almost $80. Gas does about 500 K's. Petrol maybe 400-500 K's.

[Shifty1]

with my previous vk it used ALOT of lpg (being worked, well, ya know) but still it was a fraction of the cost of petrol in terms of how many kms you got for the figures.. $25 filled me up and got me about 250km, $25 of petrol woulda got me 100kms tops..

[craigvk]

with my previous vk it used ALOT of lpg (being worked, well, ya know) but still it was a fraction of the cost of petrol in terms of how many kms you got for the figures.. $25 filled me up and got me about 250km, $25 of petrol woulda got me 100kms tops..

Was it a V8? Those figures are virtually identical to what I get. I can't complain about going from Melbourne to Moama/Echuca and still have gas in the tank and it costs around $20. Might be cheaper than catching a bus

But when I put it on petrol, man does it burn a bit. The only benefit is much increased horsepower

[craigvk]

On the subject of lpg... Thought I'd go into some detail about safety switches.
I just recently bought a new safety switch module for my brothers car as his was on the way out. His switch was going bad and would switch on and off making the gas solenoid turn on and off and would cut out especially when braking and at idle making the car stall. His was an inductive type which the wire wrapped around the coil input lead into the dizzy and it inductively picked up the pulses from that to operate the switch.

If you get one, don't get that type as it's cheap and nasty and old style. Get the one that connects to the negative side of the coil because it's more reliable.

The first picture is a safety switch and fuel guage in one unit and the second picture is a safety switch unit only. Depending on the brand, they vary by look but they usually have an LED indicator and spade terminals. In my car I just have the safety switch only without a fuel guage because there is a unit in my boot that connects to the digital dash so I can read both on the one guage.

[Shifty1]

Was it a V8? Those figures are virtually identical to what I get. I can't complain about going from Melbourne to Moama/Echuca and still have gas in the tank and it costs around $20. Might be cheaper than catching a bus

But when I put it on petrol, man does it burn a bit. The only benefit is much increased horsepower

nah, it was a worked 6.. which died not long ago.. im thinking someone did something wrong to it before i got it.. went well.. woulda ran a vn easy.. i miss that car..

[Cane_It]

On the subject of lpg... Thought I'd go into some detail about safety switches.
I just recently bought a new safety switch module for my brothers car as his was on the way out. His switch was going bad and would switch on and off making the gas solenoid turn on and off and would cut out especially when braking and at idle making the car stall. His was an inductive type which the wire wrapped around the coil input lead into the dizzy and it inductively picked up the pulses from that to operate the switch.

If you get one, don't get that type as it's cheap and nasty and old style. Get the one that connects to the negative side of the coil because it's more reliable.

The first picture is a safety switch and fuel guage in one unit and the second picture is a safety switch unit only. Depending on the brand, they vary by look but they usually have an LED indicator and spade terminals. In my car I just have the safety switch only without a fuel guage because there is a unit in my boot that connects to the digital dash so I can read both on the one guage.

can you give me some more detail on how you hooked the LPG gauge up to the digital dash and is it accurate??? what work have you had done to your motor as I'm trying to get a feel for fuel economy, when mine was stock I'd get just short of 300kms a tank, now its worked I get a good deal less mileage around 180kms but i can smell it runnin rich in the tailpipe too so I know it needs a good tune up.

[craigvk]

can you give me some more detail on how you hooked the LPG gauge up to the digital dash and is it accurate??? what work have you had done to your motor as I'm trying to get a feel for fuel economy, when mine was stock I'd get just short of 300kms a tank, now its worked I get a good deal less mileage around 180kms but i can smell it runnin rich in the tailpipe too so I know it needs a good tune up.

There is a module in my boot which I haven't got any info on it but I will gather some info and pictures on it tomorrow. It's a small square box that basically connects to your tank and then to the main guage wiring and when you flick it over to gas, the new display shows how much is in the gas tank. Mind you, if you switch over from gas to petrol when driving, the new display doesn't show. The switch needs to be switched over and then the ignition reset before it shows the other guage. Know what I mean? I will get some info for you tomorrow. Whoever did the install must have had a smart head because a quick and unprofessional way would have just added another guage on the lower left dash next to the switch but it's actually cool this way because it's less crap in the car

My 308 is actually not worked (I hate that word , I perfer performance or modified ) it is pretty stock. It would have had a head job done at some stage for the gas conversion but the lower part of the motor is stock as far as I know. The only thing that annoys me about it is the lifters. They are a bit noisy and make the rockers rattle a bit. A new cam, lifters and timing chain would probably do it wonders.

One thing I would probably suggest you do is adjust your choke assembly. On the black round thing on the side of the carb (if you have a Rochy Quadrajet) there should be 'lean' and 'rich' markings on it. You could loosen the screws on it and turn it a fraction away from the rich position and see how that is. Currently I have a bit of trouble when it's cold and taking off on petrol. It simply doesn't like it and that's something I'll worry about another time.

As I said, I will get that dual fuel guage module info when it isn't dark

Until then...