Fuel Consumption

Land Rover Discovery 1, 2 and 3

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Fuel Consumption

Postby Wildwill » 27 Mar 2012 13:30

What else can be done rather than to chip and dyno a Disco V8 to improve fuel consumtion. :?
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Re: Fuel Consumption

Postby naks » 27 Mar 2012 14:04

Wildwill wrote:What else can be done rather than to chip and dyno a Disco V8 to improve fuel consumtion. :?


drop a TDi in there? :mrgreen:

Seriously though, if you've remapped it and removed the cat/done a freeflow, there's very little to do to improve consumption. This is assuming you remove tent, roofrack, and any other unnecessary item from the vehicle.
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Re: Fuel Consumption

Postby George » 27 Mar 2012 21:28

Ensure its tuned to perfection, use good quality spark plugs, don't drive in a start/stop manner (learn to cruise instead of the constant pressure on the fuel pedal), ensure it's frequently serviced, ensure good tire pressures etc. Chipping and remapping is for people who want power, but can't afford a proper sports car. :lol: :twisted:
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Re: Fuel Consumption

Postby GM Disco2 » 28 Mar 2012 08:22

WildWill - On my previous Disco 2 V8, my first LR and still a novice to LR, I done all sort of things, changes to the heads, free-flow, chip change etc, cost me R12K at the time, in my humble opinion a total waste of money as there was no remarkable increase in power, neither any significant fuel saving. R12K can buy an awful lot of fuel, even a the current ruling fuel price. I recommend just a few basics, like a good air filter system, correct spark plugs (stay to the LR spec, do not deviate on this), and replace the viscous fan with a good quality electric fan, throw-out the cats, and add good free-flow system, and enjoy the V8 growl. Still by far better than a stinky oil-burner smell early in the morning in your garage, by the way, I think this forum was created just for diesels as about 90% of all topics goes about diesels. I enjoy my V8, and the sound, nothing that beats that.
Sorry to the oil-burner fans out there, no offense, my two cent comments!
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Re: Fuel Consumption

Postby Gorilla » 28 Mar 2012 08:45

I have always been surprised by those who buy a V8 (or any other 4x4) and then are surprised by consumption. If you want fuel economy, the first rule of thumb would be to purchase an economical vehicle... and that is not a V8 of any description. Diesels obviously have more range, but still like a fair drop.

Have your vehicle properly maintained, drive it gently if required, and bite the bullet.
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Re: Fuel Consumption

Postby Fritz » 02 Apr 2012 07:10

I have done about 500 kilometres with my Disco 2 V8 Auto yesterday and the consumption was 7,5km/l. It was my first long trip after I have fitted a free flow exhaust system. Normally the general consumption is around 6,5km/l. I must agree the best is to maintain it properly and use the correct plugs.
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Re: Fuel Consumption

Postby hgb-560sel » 02 Apr 2012 09:23

Hi guys

V8 engines are gas guzzlers full stop. The only aspects that are worth persuing are:

1. Fit a proper free flow system (mufflers with straight pipe through it)

2. Change the air filter every 10'000km in normal urban use. More frequently when venturing off road.

3. Use the correct viscosity oil and use the correct spark plugs

4. Add 1 bottle of Redex fuel treatment every 5000km. If the engine feels sluggish, add two bottles on a quarter tank and drive out. then one more bottle on a full tank and repeat every 5000km.

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That is what really works.

Gas flowing heads, fitting wild cams etc are not worth the effort unless you are building a full spec blue printed racing engine with Carello rods etc. etc. etc. = VERY BIG BUCKS! :roll:
with kind regards
George Bosch
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1998 LR Disco1 ES Tdi
2005 LR Disco3 TDV6 S
1955 MB 300SL W198/I
1988 MB 500SL R107
1991 MB 500SL R129
1958 Porsche 356A Coupé
1979 VW Beetle Cabrio (Karmann)

And some more serious stuff ;)
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Re: Fuel Consumption

Postby hgb-560sel » 03 Apr 2012 06:43

Oh yes and I nearly forgot:

Add: 750ml Poly-TFE "engine" to engine during an oil change, after having done an engine flush

Add: 250ml Poly-TFE "engine" to the TFC

Add 170ml Poly-TFE "engine" to the two diffs (Do not use with true tracs or Kamdiffs with disc based LSD's!!!)

Add 500ml Poly-TFE "Hydraulic" to R380 gearbox (Do not use in autoboxes!!!)

This will add some 8% extra available power and torque. Treatment has to be repeated after 80'000km with 50% of original dosis.



This was proven again last Saturday at the 4X4community Dyno Day, where both our D1 300Tdi and D3 TDV6 came out tops in their class)
with kind regards
George Bosch
________________________
1998 LR Disco1 ES Tdi
2005 LR Disco3 TDV6 S
1955 MB 300SL W198/I
1988 MB 500SL R107
1991 MB 500SL R129
1958 Porsche 356A Coupé
1979 VW Beetle Cabrio (Karmann)

And some more serious stuff ;)
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