Thread: How many kms from 60lts of gas?

I used to get about 36l/100k! I will never own a petrol 4x4 again

Wow Vern thats crazy! In fact the gu patrol territory! !

From my 3.9 auto I used to get 17 - 19l/100. But that thing ran sweet as too and the lpg was leaned out a bit. 27 around town though.

Dads 3.5 manual has a double diaphram convertor on it and he gets consistantly 14-15 out of his on the highway.

Is yours the three or four speed - those torque flights were useless at everything.

Between 15 and 30 litres per 100km depending on your vehicle's setup:

Transmission type 3 speed slushy or 4 speed lockup auto
compression ratio/camshaft
roof racks yes/no
engine tuning ie timing, advance curve
gas mixture monitoring/adjustment
cruising speed
towing

You can install an oxygen sensor in the exhaust and automatically adjust cruise mixtures using a LPG processor, or fit a vacuum operated lean cruise power valve if you can still find one, they are no longer made.

Originally Posted by bee utey

Between 15 and 30 litres per 100km depending on your vehicle's setup:

Transmission type 3 speed slushy or 4 speed lockup auto
compression ratio/camshaft
roof racks yes/no
engine tuning ie timing, advance curve
gas mixture monitoring/adjustment
cruising speed
towing

You can install an oxygen sensor in the exhaust and automatically adjust cruise mixtures using a LPG processor, or fit a vacuum operated lean cruise power valve if you can still find one, they are no longer made.

Not 100% now you mentioned they came in 3 speed, but i reckon it is a 4 speed. I assumed it was from the start. It is a May 1988 build if that changes anything.
9.35:1 ratio engine / no idea about cam. hope to find out when it's tuned.
No roof rack
Still needs to be tuned. It is too much for me. It doesn't start with out aerostart until its warm then it starts easy. I think timing is about 15DTDC. Like i said, i can't seem to get it right. I'm going to book it in. I found instructions on how to basically set the mixture on the gas that you posted up one day. It was as your instructions before i started anyway so i put it back there.
100km/h
Don't tow

I'm getting 200kms to 60 litres at the moment.about 30l/100kms.

My 101 has an old LPG system but its runs well on it. My 101 will always get 50% worse fuel consumption than a rangie. I have my tuning set at 9 degrees BTDC and there is no noticeable difference in power or performance between gas and petrol though fuel consumption is 20% worse on gas.

I get 75litres in my gas tank and I get between 275 to 320km on a tank so given this, and you only getting 200km out of 60litres indicates to me you need some serious work on your system - particularly if you have a hi comp engine where mine is low comp.

Garry

OK my brothers '87 3.5 RRC 4 speed auto went to Queensalnd for a holiday and on a steady 100km/h he got up to 350km out of a 60L tank. Thats with

Timing set to 10 degrees BTDC, 15 is too much if the advance is working.
Mechanical and vacuum advance tested and working
Bosch ignition module upgrade
Bosch WR7DC+ spark plugs
Oxygen sensor and LPG processor fitted
Slightly oversized tyres and steel front and rear bars but everything else dead stock.

BTW I think I've found the cheapest LRV8 vacuum advance unit on the planet, have fitted one and ordered a couple more:

Land Rover Discovery Defender V8 Replacement Vacuum Unit Powerspark | eBay

mine used to run a holden v8 stroker and T400 trans etc....

Originally Posted by bee utey

OK my brothers '87 3.5 RRC 4 speed auto went to Queensalnd for a holiday and on a steady 100km/h he got up to 350km out of a 60L tank. Thats with

Timing set to 10 degrees BTDC, 15 is too much if the advance is working.
Mechanical and vacuum advance tested and working
Bosch ignition module upgrade
Bosch WR7DC+ spark plugs
Oxygen sensor and LPG processor fitted
Slightly oversized tyres and steel front and rear bars but everything else dead stock.

BTW I think I've found the cheapest LRV8 vacuum advance unit on the planet, have fitted one and ordered a couple more:

Land Rover Discovery Defender V8 Replacement Vacuum Unit Powerspark | eBay

That is the exact Advance I have. In fact I have the the whole distributor with the Lucas amp module and Lucas coil.

Lucas Electronic Range Rover Distributor Rover V8 35D Electronic Range Rover Distributor Rover V8 35D Powermax with DAB118 [D2M11 & R5] - £122.99 : Electronic Ignition, Home of the Powerspark electronic ignition and electronic distributor