D-gas system for zd30 stay or go?

[caveman21]

so i purchased my 2003 series 3 gu zd30 patrol 3years ago now and have some good motoring out of it , when purchased it had been fitted with a D_GAS gas injection system .On purchase of the gu the previous owner told me he had it fitted in 2008. he used gu to go from perth to darwin and the kimberly trips
and when back in perth the fuel pump shit its self so he had that rebuilt . From the time after the fuel pump rebuild the d-gas system then started to play up (were his exact words). so i stopped using it and being the installer D GAS DIESEL ENHANCEMENTS in malaga perth has gone out of busisness had no other option to stop using it . he told me that he took it to a nuther gas mob and they told him the fuel pump rebuild was the issue and it all needed re calibrating
So i have never used the system apart from a quick flick of the switch to see what would happen?
What happend was it ran extreamly rough and pinged its head off and shook the hell out of the car .
SO the question is what to do its been on the car for 3 years and hasent been used still with 20L odd of gas in tank still im wanting to get more room back in engine bay so i can fit catch can and nads stuff in there and have new redback 3inch exhaust to fit as well (exhaust has been modified to fit gas tank)
so do i remove and try to sell? (what would it be worth ? have recipts from previous owner of $3795 when fitted)
or do i try to get it looked at and keep ?
I anyone out there has any experiance or ideas feel free to comment

Thanks Caveman

[Bigcol]

mate, get the system looked at by Joondalup 4x4
Address: 4 Packard St, Joondalup WA 6027
Phone: (08) 9301 5221

I took mine in last year for pretty much the same reasons, and mine was leaking gas as well
they fitted a new improved setup for the D Gas system
it was originally a "pulse" setup for the gas, now it only kicks in over 5lb of boost

now, when I turn the gas on, it turns my 4.2 from a slug to a (sort of) rocket ship - to me anyway


not affiliated with them, just a very very satisfied customer

[caveman21]

mate, get the system looked at by Joondalup 4x4
Address: 4 Packard St, Joondalup WA 6027
Phone: (08) 9301 5221

I took mine in last year for pretty much the same reasons, and mine was leaking gas as well
they fitted a new improved setup for the D Gas system
it was originally a "pulse" setup for the gas, now it only kicks in over 5lb of boost

now, when I turn the gas on, it turns my 4.2 from a slug to a (sort of) rocket ship - to me anyway


not affiliated with them, just a very very satisfied customer

Cheeres Bigcol for the info will have to give them a call, As im in gero 5 hours drive away and have a chat with them and try to come to sum sort of decision on what to do?
I have a redback 3 inch exhaust and a new intercooler (welded one) and a dawes valve and boost control valve ,boost gauge , pyro gauge , and catch can all waiting to go on as well, also was thinking of going with a chip or module of some description . dont know if that will all work with the gas system things i need more info on definatley.

[Bigcol]

you wont need the chip if you get the gas sorted

get your Boost & EGTs (Pyro) fitted first
then when you fit up the Dawes etc you can then see the noticeable difference

get all your goodies fitted up first, then get the gas done

you wont know the car afterwards

[threedogs]

Not to not get things wrong but having D-gas on a 3ltr ,its only a 3ltr fcol,,, I can see a 4.2 needing it
but its an extra fuel ,not for me Im afraid.
Im getting 12 around town and 15 on the hwy towing, which I think are reasonable figures for a 3ltr Auto
Never been a fan of D-gas conversions

Remove it and sell it for what you can

[caveman21]

Remove it and sell it for what you can

So thats one for and one against the D-gas system , unfortunatly i have never had the oportunity to use the D-gas to get a opinion on it ? I have heard that it does make temps go up and engines run hot ,and that cant be good for a zd30 ! My main reason for sorting this out like many zd30s it aint got much go-go, temps come up going up hills ,overtaking is a challenge most times and thats just with the car with 4 people in it and camping gear . Would like to be able to tow a campertrailer and or boat and know that its not going to be a struggle .Exhaust and intercooler +nads gear will all be on next week,

[threedogs]

I travell 3 up with a fully loaded camper and Patrol and have no trouble at
all sitting on 110 kph up or down hill , even overtaking is a breeze

[caveman21]

engine bay pics of the D-gas system its very clustered imo and would like to get my catch can in there sum where too
68160
gas tank under patrol exhaust has been modified to suit hoping the new redback system fits68161
68162

[the evil twin]

Slow revving 'mechanically' managed engines like TD42s thrive on Dgas

The ZD30 on the other hand does better with a Chip/ECU remap, Exhaust mods and improved intercooling.
All of which work 24/7 not for a few hundred K's until the LPG runs out

Sell the Dgas and put the $ towards other mods on the ZD IMHO

[Bigcol]

Not to not get things wrong but having D-gas on a 3ltr ,its only a 3ltr fcol,,, I can see a 4.2 needing it
but its an extra fuel ,not for me Im afraid.
Im getting 12 around town and 15 on the hwy towing, which I think are reasonable figures for a 3ltr Auto
Never been a fan of D-gas conversions

Remove it and sell it for what you can


the theory is - or was - that by adding a small shot of Gas while running (as gas burns at 110%) it would help keep the engine internals clean from carbon build up
also, as it is a fuel that burns at 110%, it would aid in the power stroke of the diesel - more bang per buck so to speak

dont forget, DGas & Diesel Gas were all the rage because you couldn't get a chip for the 3L, unless you imported them from Italy(and even then, it was for a 3L Fiat not a Patrol)

the early TD42 (like mine) works with the Gas as there is NO Computers in my Car, so even if I could get a chip for it (now they ARE available for the later models) it wouldnt work, as I dont have a computer run motor

as an example
- if I run my TD42 to and from work for a week - works out at 13.9L/100 - $60.00 diesel
- if I run my TD42 to and from work with the gas on for a week - works out at 12.5L/100 - $38.00 diesel & $12.00 gas

so its cheaper to run with the gas on, and I get better economy, and for a TD42, thats great economy

[threedogs]

the theory is - or was - that by adding a small shot of Gas while running (as gas burns at 110%) it would help keep the engine internals clean from carbon build up
also, as it is a fuel that burns at 110%, it would aid in the power stroke of the diesel - more bang per buck so to speak

dont forget, DGas & Diesel Gas were all the rage because you couldn't get a chip for the 3L, unless you imported them from Italy(and even then, it was for a 3L Fiat not a Patrol)

the early TD42 (like mine) works with the Gas as there is NO Computers in my Car, so even if I could get a chip for it (now they ARE available for the later models) it wouldnt work, as I dont have a computer run motor

as an example
- if I run my TD42 to and from work for a week - works out at 13.9L/100 - $60.00 diesel
- if I run my TD42 to and from work with the gas on for a week - works out at 12.5L/100 - $38.00 diesel & $12.00 gas

so its cheaper to run with the gas on, and I get better economy, and for a TD42, thats great economy

Basically what I said more suited to the 4.2 rather than the
3lt which are pretty much on limit out of the box

[the evil twin]

- if I run my TD42 to and from work for a week - works out at 13.9L/100 - $60.00 diesel
- if I run my TD42 to and from work with the gas on for a week - works out at 12.5L/100 - $38.00 diesel & $12.00 gas


Uummmmm something doesn't gel, Cobber?

12.5 LPH versus 13.9 LPH of Diesel economy is 10% less Diesel used for the week... or... 90% of the original amount of Diesel is still required
$38 versus $60 is 36% less money spent on buying Diesel... or... you only bought 63% of the original amount of Diesel instead of the 90% still required

If you needed 90% of the original amount of Diesel you would need to spend 90% of the original amount to buy it ($54)

[caveman21]

Slow revving 'mechanically' managed engines like TD42s thrive on Dgas

The ZD30 on the other hand does better with a Chip/ECU remap, Exhaust mods and improved intercooling.
All of which work 24/7 not for a few hundred K's until the LPG runs out

Sell the Dgas and put the $ towards other mods on the ZD IMHO

The more i think and hear is that best option would be to remove the d-gas and go with other mods planned and get a chip or retune ecu
any ideas on chips and remaped ecu ?

[Bigcol]

Sell the Dgas and put the $ towards other mods on the ZD IMHO

cost more to remove than what its worth

need a licensed Gas fitter to remove

and no feerker will buy it anyway, because you need a Gas Fitter to install it

[Bigcol]

Uummmmm something doesn't gel, Cobber?

12.5 LPH versus 13.9 LPH of Diesel economy is 10% less Diesel used for the week... or... 90% of the original amount of Diesel is still required
$38 versus $60 is 36% less money spent on buying Diesel... or... you only bought 63% of the original amount of Diesel instead of the 90% still required

If you needed 90% of the original amount of Diesel you would need to spend 90% of the original amount to buy it ($54)


well, normally when I fuel up, it costs me $50 to top up diesel & Gas tanks

when I forgot to fill up the Gas, and drove for a week without it, the next week it cost me $60 in diesel $12 in Gas

I drive from Swan Valley to Armadale daily - Roe & Tonkin Hwys

[threedogs]

I went down the DP chip road, so far Ive found I have great power with the chip on 10
but It'll blow heaps of black smoke, so I backed it off to 7 for towing duties still good
power, then I tried it on 5 but in my case found 7 worked best on my motor ,

You should be able to strip most of the system out IMO
the tank should have a valve to turn gas off and keep things safe.
I cant see any problems arising just take your time. I was going to
fit this D-gas system to mine years ago, but couldn't justify the bang for buck
Chip is fine on the Dis and a re-map seems to have great benefits on the CRD

[caveman21]

I went down the DP chip road, so far Ive found I have great power with the chip on 10
but It'll blow heaps of black smoke, so I backed it off to 7 for towing duties still good
power, then I tried it on 5 but in my case found 7 worked best on my motor ,

You should be able to strip most of the system out IMO
the tank should have a valve to turn gas off and keep things safe.
I cant see any problems arising just take your time. I was going to
fit this D-gas system to mine years ago, but couldn't justify the bang for buck
Chip is fine on the Dis and a re-map seems to have great benefits on the CRD

Thanks for that 3D i was thinking it couldnt be to hard or dangerous to remove the d-gas system my self like you say theres a valve on the tank to turn off the gas flow and will just vent the lines when i crack them .Looks like im going to remove the system next week if the weather is ok as i dont have a shed to work in atm and will be doing it in the driveway ,would like to be able to remove the gas system and install the new exhaust all in a day ?
Good to hear the DP chip works well on the zd30s .
Would still be great to get other peoples opinions and experiances on there chips ,and best places or people to get them from and do you dyno your car before and after

cheeres Caveman

[threedogs]

Be wary of where you are with gas venting into the air, things like a pilot light
on a HWS may be enough for some grief

[caveman21]

Be wary of where you are with gas venting into the air, things like a pilot light
on a HWS may be enough for some grief

Will do 3D got the advantage of living in the windy city lol .Hopefully wont be a great deal of gas in the lines anyway?
Thats if the weather clears up been raining all weekend here more predicted for next week Bang Head