Green motors...

Falcon87 · 27-12-2007, 01:23 PM

What diffrences are there between the Green Dedicated gas motors and the duel fuel set ups?

Which one gives more economy?

Which one gives more power?

Cheers

GK · 27-12-2007, 01:47 PM

Quote:

Originally Posted by Falcon87

What diffrences are there between the Green Dedicated gas motors and the duel fuel set ups?

Which one gives more economy?

Which one gives more power?

Cheers

Dedicated gas engines have the same bottom end as the XR6T. I'm not sure about the top end though. Hardened seats and such would have to be the go though.

GK

StealthAu · 27-12-2007, 02:16 PM

Quote:

Originally Posted by GK

Dedicated gas engines have the same bottom end as the XR6T. I'm not sure about the top end though. Hardened seats and such would have to be the go though.

GK

I thought the green engines were running higher compression, the xr6t's are lower then the n/a I6.

FGII-XR6 · 27-12-2007, 02:16 PM

the au did not come out in a turbo AFAIK and all falcon I6 engines have gas suitable valve seats. a search of the parts database reveals that even the cam is the same. the engine itself is the same just the bits that bolt onto the inlet side are different and it has a green rocker cover. ask any mechanic and the will tell you that as LPG burns cleaner you get less oil contamination enhancing engine life so there is no need to "beef the engine up"

sly · 27-12-2007, 05:21 PM

Quote:

Originally Posted by GK

Dedicated gas engines have the same bottom end as the XR6T. I'm not sure about the top end though. Hardened seats and such would have to be the go though.

GK

Sorry George, the BA egas engines have beefier conrods than the petrol engines. These egas rods were then later used in the 'Phoon. The (BA) XR6T has the same conrods as NA petrol BA's. Otherwise as au3xr6 says, the stock AU valves & seats are up to the job for LPG.

When I got my gas put on I asked about valve saver, having previously put LPG with Flashlube on the Courier. The installer said I'd be wasting my money getting a valve lube system for the Falc due to the quality of metal in the valves & seats. Different story if I had a Commodore however... he converted & serviced a fleet of 45 taxis so should have had a bit of an idea.

sly · 27-12-2007, 05:23 PM

Quote:

Originally Posted by au3xr6

the au did not come out in a turbo AFAIK and all falcon I6 engines have gas suitable valve seats. a search of the parts database reveals that even the cam is the same. the engine itself is the same just the bits that bolt onto the inlet side are different and it has a green rocker cover. ask any mechanic and the will tell you that as LPG burns cleaner you get less oil contamination enhancing engine life so there is no need to "beef the engine up"

Interestingly though if you go to our local monopoly Ford dealer and buy a remanufactured exchange head for an AU they ask whether you need gas spec or plain vanilla...

**Mechan1k** · 27-12-2007, 08:30 PM

Quote:

Originally Posted by au3xr6

the au did not come out in a turbo AFAIK and all falcon I6 engines have gas suitable valve seats. a search of the parts database reveals that even the cam is the same. the engine itself is the same just the bits that bolt onto the inlet side are different and it has a green rocker cover. ask any mechanic and the will tell you that as LPG burns cleaner you get less oil contamination enhancing engine life so there is no need to "beef the engine up"

I found this out also ... it also uses the same compression ratio as the petrol engines ... internally ... petrol and LPG AU motors are identical ... the intake side of things are different as mentioned ... AU EGAS has no injectors ports or rail ... and the throttle body is a one-piece throttlebody/mixer setup (don't ask what Ford want for a replacement ... it's hideous).

Only B-series petrol and EGAS engines were different. Also as mentioned.

Falcon87 · 30-12-2007, 01:17 AM

Thanks guys for the help! Im just looking into purchusing a egas AU2 wagon and wanted to know a couple of things!

Cheers!

JC · 30-12-2007, 02:22 PM

While on the subject of egas etc, has anyone ever seen or heard of an egas being converted to dual fuel by adding in the petrol system? Would be an ironic conversion, I reckon.

THORNSPAWN · 30-12-2007, 07:13 PM

AU Egas have different valves than standard. Bottom ends are the same.

Orbit · 30-12-2007, 07:26 PM

Quote:

Originally Posted by Mechan1k

and the throttle body is a one-piece throttlebody/mixer setup (don't ask what Ford want for a replacement ... it's hideous).

.

$3700 installed! But it would pay to shop around...mine was done under warranty about 2 weeks after i got it..buy the same dealer who point blank refused to come to terms with the fact he couldn't possibly have serviced my automatic transmission as my ute is a manual.

**Mechan1k** · 31-12-2007, 08:09 PM

FTG just got an EGAS AUII ute in ... and parts are cheap from it ... best to speak to Darren if you want anything on the LPG side of things off this ute.

sly · 31-12-2007, 09:59 PM

Quote:

Originally Posted by Mechan1k

... and the throttle body is a one-piece throttlebody/mixer setup

Is this less restrictive than a mixer ring shoved down the petrol throttle body?

**Mechan1k** · 31-12-2007, 10:01 PM

Nah ... same setup ... just a one-piece item.
It's more an oval than a circle as well.
I have no pics of it though.

mik · 25-04-2011, 01:53 AM

interesting thread, i thought i`d do some thread mining

, as i have just been given an Au dedicated gas long motor to do up, i was thinking an egas motor with bigger rods would be a nice basis for a warm xr6 motor

.......after reading the au gas rods are standards.....oh well it was just an idea :( , my next thought i`m wondering how much difference there is with the ba gas rods to the standard ba rods and the au rods, will ba rods fit the au engine? i probably won`t chase it, but i`m interested to know the difference.

PoweredByCNG · 25-04-2011, 01:47 PM

Weird. An LPG-integrated throttle body shouldn't cost more than $200 in parts. In terms of installation, it's a simple bolt off, bolt on job.

As for the B-series, the BA E-gas engine has a higher compression ratio than the petrol engine, but with the BF, the petrol engine was upgraded with the same high compression ratio to bring the power up from 182kW to 190kW. The net result is no real-world advantage to the green motor. The only difference therefore is the stronger connecting rods, only installed due to the risk of backfire from the mixer-style LPG system.