Jump to content
SAU Community

Recommended Posts

  • Replies 46
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

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?

Link to comment
https://www.sau.com.au/forums/topic/226398-lpg-stagea/#findComment-3993108
Share on other sites

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.

Link to comment
https://www.sau.com.au/forums/topic/226398-lpg-stagea/#findComment-3993143
Share on other sites

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!

Link to comment
https://www.sau.com.au/forums/topic/226398-lpg-stagea/#findComment-3993850
Share on other sites

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.

Link to comment
https://www.sau.com.au/forums/topic/226398-lpg-stagea/#findComment-3993857
Share on other sites

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

Link to comment
https://www.sau.com.au/forums/topic/226398-lpg-stagea/#findComment-3994064
Share on other sites

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!

post-38455-1215325607_thumb.jpg

Link to comment
https://www.sau.com.au/forums/topic/226398-lpg-stagea/#findComment-3995000
Share on other sites

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?

Link to comment
https://www.sau.com.au/forums/topic/226398-lpg-stagea/#findComment-3997807
Share on other sites

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.

Link to comment
https://www.sau.com.au/forums/topic/226398-lpg-stagea/#findComment-3997904
Share on other sites

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!

Link to comment
https://www.sau.com.au/forums/topic/226398-lpg-stagea/#findComment-4000441
Share on other sites

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.

Link to comment
https://www.sau.com.au/forums/topic/226398-lpg-stagea/#findComment-4006023
Share on other sites

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. :O

Link to comment
https://www.sau.com.au/forums/topic/226398-lpg-stagea/#findComment-4006147
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Does it make a difference in your turbo having a shorter life if you have a cat converter as it causes that back pressure versus less/no back pressure with a decat? (Not sure if this is accurate) Also slightly different question if you went from a oem cat to a decat or vice versa will it require a tune? I heard if you change the dump pipe onwards it requires a tune?
    • No. Have only gotten as far as contemplating the task of having to put in the required fairly heavy wiring and fusing to run it (along with the big alternator), and preferring not to. But otherwise, it would be nice to have a little extra freedom as to exactly where the compressor is located and free up some space around the exhaust side of the engine.
    • Following from this in a related by not closely-related sense... Because I was buying a bunch of other GKTech stuff, I got some rear subframe collars. The history that leads up to this is: 25+ years ago the car arrived into the country with stock subframe bushes. At some point shortly thereafter I added Whiteline pineapple rings, set up neutral, and it improved the rear end behaviour. Well, it is my vague memory that I was happier with it with them in. Less axle tramp on launches, generally better, etc etc. ~2012 it got a new non-HICAS subframe with new stock bushes. No pineapple rings. I reckon that ever since then I've been dissatisfied with the axle tramp. Recently I've been f**king around a lot with all aspects of the suspension. One contemplation has been to relocate the rear lower control arm front mount points (and do the other things needed to make that work) to improve longitudinal rear grip by getting rid of some of the stupid anti-squat that Nissan ladled into the R32. But.... before doing that I thought I'd put some collars in. And.... The collars are good. The rear sounds a little bit different, but there has been no significant increase in NVH coming up into the body. In terms of rear behaviour - expansion joints on long sweeping elevated freeway ramps that would sometimes cause the rear to jiggle around a bit, no longer seem to do so. It appears that jamming chunks of metal into the gaps in the rubber so they can't move much is a really good thing. And the launch behaviour and general forward traction situation seems to be greatly improved too. It's impossible to be really sure, because the tyres are completely shagged - they are freakishly willing to let go right now. But as an A-B test with the same tyres it certainly seems to grip up a lot better. Highly recommended to anyone who still has stock bushes.
    • Bit off topic maybe but has anyone had a crack at one of those aftermarket electric compressors ? Bit of a search came up with one put out by Speedy Air Spares. Looks interesting and looks as if you'd have to run a big arse alternator. Found this out after the fact as my air con compressor packed it in and soon after my alternator ! !
    • Yes. Needs new ports. Usually just achieved by screwing an adapter onto them. Be aware that any AC compressor that hasn't been used in a long time will very likely have dried out seals and will not hold gas. Oh, and obviously you will require a new receiver-dryer also.
×
×
  • Create New...