Thread: I am all gassed up

For the cost of the wolf its sort of a waste if you run on gas 95% of the time.
Although you could set the wolf with dual ignition maps and have it use the lpg map when switched to gas and turn the fuel pump and injectors off.

Originally posted by matbor+--><div class='quotetop'>QUOTE(matbor)</div><div class='quotemain'><!--QuoteBegin-RichardK
Hi Brad,

Good idea to fit the backfire trap ASAP, I did 2 AFM's on the '86 RR before putting one on. There is a place in Vic Park that repairs them but I don't remember their name but could find it if need be.

I solved the backfire damage problem by installing the Wolf 3D which did away with the AFM and it rarely ever backfires now.

I was thinking of putting in a WOLF 3D and LPG setup as well, are the WOLF3d's reliable ? are they expensive to get installed ? do you think it has improved fuel economy ?[/b][/quote]

The engine has been the most reliable it has ever been since installing the Wolf. I understand that the Wolf 4 is not as good as the 3D
If I recall correctly it cost around $2200 to supply and install and that included GM 5 litre injectors as the RR injectors did not have the capacity.

There was no improvement in the economy even though that was one of the the main reasons to install it in the first place.

Originally posted by rangieman
how many ks are you getting out of 80 litres of gas mine is doing about 180 ks to 60 litres a bit poor me thinks

Our 4.6 RR we get 240K's from 60 litres and the 3.9 (new one) is getting 290K's

My 3.5 '88 EFI RR (manual) gets 4km per litre around town and 6.5+km per litre on a highway run on LPG. The only deviations from standard are a foam air filter and a hi-clone. The engine's done 409,000km and has been on LPG for the last 60,000km.

Other factors would be tyres. I'm running 215 85R16 tyres, - tall and narrow. But if the height offsets economy, it also offsets the odometer, though the tyre width may affect fuel consumption.

Loanrangie, RichardK

The only problem with a Wolf 3D and running seperate timing maps for LPG and Petrol is: The auxilary connection that can be used to control an idle air bypass solenoid, is the same connection that is used to switch the ignition map via an external switch/relay/source.

My Wolf 3D (running a 3.9V8 with Disco plenum and injection) is setup as I bought it, with dual ignition maps for the two fuels. Hence the "patched in" Idle air bypass solenoid is some ancient thing that seems to rely on engine/air temp, and can vary a bit depending on weather conditions such as humidity and temperature. The only real problem though is in summer, when I put the aircon on, the revs drop too low, and the air bypass solenoid does not compensate. [img]style_emoticons/<#EMO_DIR#>/sad.gif[/img] I'm looking at building a separate circuit to control one of the later stepper motors to rectify this issue.

RichardK, what's the setup for the idle air bypass on your 4.6??

Oh....and my current fuel use is 4.5km/l around town, 5km/l on country runs. [img]style_emoticons/<#EMO_DIR#>/smile.gif[/img]

Cheers
Andre

Originally posted by LRCounty
Loanrangie, RichardK

The only problem with a Wolf 3D and running seperate timing maps for LPG and Petrol is: The auxilary connection that can be used to control an idle air bypass solenoid, is the same connection that is used to switch the ignition map via an external switch/relay/source.

My Wolf 3D (running a 3.9V8 with Disco plenum and injection) is setup as I bought it, with dual ignition maps for the two fuels. Hence the "patched in" Idle air bypass solenoid is some ancient thing that seems to rely on engine/air temp, and can vary a bit depending on weather conditions such as humidity and temperature. The only real problem though is in summer, when I put the aircon on, the revs drop too low, and the air bypass solenoid does not compensate. [img]style_emoticons/<#EMO_DIR#>/sad.gif[/img] I'm looking at building a separate circuit to control one of the later stepper motors to rectify this issue.

RichardK, what's the setup for the idle air bypass on your 4.6??

Oh....and my current fuel use is 4.5km/l around town, 5km/l on country runs. [img]style_emoticons/<#EMO_DIR#>/smile.gif[/img]

Cheers
Andre

Hi Andre,
Knowing the history your vehicle I will catch up with Dave who installed both of them and find out if there was any difference in the installation

Thanks Richard,

BTW....after looking at your "intake air pressure reference" setup for your LPG converter, I copied it for my system...although mines a lot less fancy with a piece of 3" exhaust and a brass threaded hose connector [img]style_emoticons/<#EMO_DIR#>/biggrin.gif[/img]
But the good news...it fixed the surging problem [img]style_emoticons/<#EMO_DIR#>/biggrin.gif[/img] [img]style_emoticons/<#EMO_DIR#>/biggrin.gif[/img]

Cheers
Andre

The important thing is it is fixed [img]style_emoticons/<#EMO_DIR#>/biggrin.gif[/img] [img]style_emoticons/<#EMO_DIR#>/biggrin.gif[/img] [img]style_emoticons/<#EMO_DIR#>/biggrin.gif[/img] [img]style_emoticons/<#EMO_DIR#>/biggrin.gif[/img]