Lpg Stagea

[hectic180]

May be worth a look

http://www.skylinesaustralia.com/forums/Ni...08#entry3984508

[MRO]

I just had a quote to convert mine in WA. Will probably be booking in on Monday - 10 week wait!

[jippa]

so where u taking yours and how much

[RS4StagMan]

I just had a quote to convert mine in WA. Will probably be booking in on Monday - 10 week wait!

Congratulations on your decision....here in VIC it is around a 5-6 month wait for a conversion! (at a reputable workshop).

What system are you fitting? and are you going dual fuel or dedicated LPG?

[MRO]

I am going dual fuel. I have spoken to Shane (i think) at Forcefeed Gas in Jandakot for a direct injection system (i think). I have the details just not in front of me. Cost is $4700. Get $3k back from govt so net cost is $1700. System includes 60lt tank mounted in the boot between rear struts and a piggy back computer to sort out the gas system.

With my current fuel use it should pay for itself in 6 months. Interesting to note he is doing another stagea shortly. He is responsible for the r34 in Perth that is running on gas - thread discussing car is somewhere on this site.

[Jnr]

seriously thinking about this, but going straight lpg, put gas tank where existing tank is.

MRO, Do u have to pay the $4700 upfront or only the $1700 and they claim the rabates?

Cheers

Jnr

[RS4StagMan]

I am going dual fuel. I have spoken to Shane (i think) at Forcefeed Gas in Jandakot for a direct injection system (i think). I have the details just not in front of me. Cost is $4700. Get $3k back from govt so net cost is $1700. System includes 60lt tank mounted in the boot between rear struts and a piggy back computer to sort out the gas system.

With my current fuel use it should pay for itself in 6 months. Interesting to note he is doing another stagea shortly. He is responsible for the r34 in Perth that is running on gas - thread discussing car is somewhere on this site.

I think SGI (sequential gas injection) is what "Urtwhistle" R34 GTT is running of "Prins" brand. His seems to work really well and is duel fuel with Power FC aftermarket ECU. He seems to have maxed his power out at 200 RWKW (on single injectors per cylinder.

My system is a little different being a Gas Research system www.gasresearch.com.au. It is not SGI however the skies the limit in terms of potential power with dual converters and throttle bodies (my installer has seen about 495 RWKW with this setup in a turbo XR6 Falcon).

There are many turbo RB30 VL Commodore's running with this setup and doing 9 and 10 sec 1/4 mile passes.

However if you are not into big power figures and can live with about 200 RWKW, then the SGI system is a great system once tuned properly.

I am awaiting the development of the liquid injection LPG system which is yet another generation ahead of SGI (vapour ) systems. This system will inject liquid LPG instead of (gas) vapour into the engine so no converter is required. It seems it's availability is just around the corner here in VIC anyway, firstly available for GEN 3 V8 Commodores and 6 cylinder Commodores and Falcons.

Time will tell how these liquid LPG systems perform!

[RS4StagMan]

seriously thinking about this, but going straight lpg, put gas tank where existing tank is.

MRO, Do u have to pay the $4700 upfront or only the $1700 and they claim the rabates?

Cheers

Jnr

This is exactly whay I have done, putting the LPG tank in place of the petrol tank, with a shield to cover the tank, SLR 5000 droptank style.

You need to pay the whole amount upfront and then claim the rebate back....got my rebate back in 2 weeks.

[Jnr]

kool. any pics? tank and engine bay please

[jippa]

I am going dual fuel. I have spoken to Shane (i think) at Forcefeed Gas in Jandakot for a direct injection system (i think). I have the details just not in front of me. Cost is $4700. Get $3k back from govt so net cost is $1700. System includes 60lt tank mounted in the boot between rear struts and a piggy back computer to sort out the gas system.

With my current fuel use it should pay for itself in 6 months. Interesting to note he is doing another stagea shortly. He is responsible for the r34 in Perth that is running on gas - thread discussing car is somewhere on this site.

what is the deal if u already have a aftermarket ecu or piggyback. will it be replaced or intergrated

[MRO]

RS4stagman and hectic180 - where does the filler cap go for your LPG setup. I just had a horrible thought that i might have to have funny looking cap popping out of the rear quarter somewhere. please tell me it is discretly mounted somewhere out of sight!

[RS4StagMan]

RS4stagman and hectic180 - where does the filler cap go for your LPG setup. I just had a horrible thought that i might have to have funny looking cap popping out of the rear quarter somewhere. please tell me it is discretly mounted somewhere out of sight!

Filler Point

Filler point on mine is in the same place as the factory petrol filler location! (Remember mine is dedicated LPG). See attached pic.

Don't know where they put them on dual fuel Stageas or Skylines - try to talk your workshop into placing the lpg filler right next to the petrol filler location-subject to space- this makes for a neat installation that is hidden behind the filler door.

Try to get them not to cut your rear quarter panel if at all possible!

[hectic180]

Here are some pics of My Stagea LPG Conversion.

[MRO]

very neat! putting my order in later today.

[RS4StagMan]

Here are some pics of My Stagea LPG Conversion.

Hi, congartulations on your conversion.

Just a few questions;

a) Is the dyno done in 2WD or 4WD mode?

b) Do you have any A/F ratio or engine torque plots?

c) What was the power curve like on petrol?

d) Is the car modified at all?

e) How much ignition timing are you running?

[hectic180]

G day,

The Dyno was performed in 4wd mode.

I do not have the Afr or Torgue plots.

The blue line is the Lpg power and the Red is 98 Ron.

The car has stock dump pipe with 3' exhaust and Hks air filter. Thats it.

the ignition timing has not been adjusted to suit Lpg as i am running Duel Fuel.

[timheather]

Some of those setups are awesome! Shame I just sold my Stag.... well, couldn't afford a conversion anyway, and don't really do the Ks to justify it.

[inmate]

Hectic180,

Nice choice of installer mate.

I have had a few chats with Martin regarding my Gas-Research RB30's.

When it comes to tuning LPG in Sydney he is deffinately the gas guru IMO. I will be converting a Stag to straight gas in a few weeks time & will deffinately be going to Goff & Sons for the final tune up...

Regards John!

[RS4StagMan]

From my calculations, looking at the the dyno curves on 98RON and LPG you are making more power on LPG for about 85% of the time throughout the rev range and the other 15% of the time not far behind....

That's a pretty good result.

[GoldZilla]

Filler Point

Filler point on mine is in the same place as the factory petrol filler location! (Remember mine is dedicated LPG). See attached pic.

Don't know where they put them on dual fuel Stageas or Skylines - try to talk your workshop into placing the lpg filler right next to the petrol filler location-subject to space- this makes for a neat installation that is hidden behind the filler door.

Try to get them not to cut your rear quarter panel if at all possible!

LOL, you might want to replace your "Unleaded Fuel Only" sticker on your car.