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V8 fuel consumption on tickover question...

Posted: Thu Nov 15, 2007 10:29 am
by Orkney
Been having an unsuccesful google - wondered if anyone migth be able to have a stab at this ...
3.5L v8 whats the approximate fuel consumption gallons per hour when ticking over?

Just pondering this as seem to be forever putting petol in the range rover and it hardly goes anywhere in terms of miles.
When it was on the road would get 23-25mpg and of that a good 3 miles would be foot to the floor.
Its modified but of course that means not only does it breathe more easily with better performance also means the fuel economy is beter.
(fast road cam, upgraded ecu, induction kit, janspeed 4-2-1 both sides of the block)

Nowadays its just a glorified dumper :D but its got a lot of work to do soon, as its normally fetching & carrying it never seems worth turning it off - filling in potholes in the track or moving walling stone e.g.
That and the battery is far from new so dont like to put too much strain on it as wouldnt want it to be a no starter come the snowy times when it might be needed in an emergency.

I'd let it run dry and test with a gallon to see but last time it accidentally ran out was a pig to get going again being an injection.

Anyhow grateful for any enlightenment, one of those things just need to know cause now ive thought of it its driving me mad(der) :lol:

Posted: Thu Nov 15, 2007 11:18 am
by alex_holden
ISTR it ticked over quite fast. Is there any way to slow it down?

Posted: Thu Nov 15, 2007 11:29 am
by Orkney
Yes i have it set like that for some bizzare reason i cant remember Alex, your right though wouldnt hurt to turn it down.
It was something to do with after that B*****d rat killed the car when it chewed through the loom from the ECU under the drivers seat - i either soldered or didnt (and just bunched & electrical taped) the broken wires and think it was possible i may have changed the resistance in the fuel suply circuit - on a lower tickover it gets a sporadic drop of revs after xyz complete revolutions of the engine - maybe 20 seconds or so, then picks up again, think i upped the tick just to alleviate that as it was darned annoying.

Very valid point though, if i drop it by 1/3 that should = 1/3 less fuel so a saving and a penny saved is more beer :lol:

Oh talking of beer if you want some more for your folks for xmas PM your address again as geting around to all that seasonal humbug stuff again - theres time to send it std parcel so can send more bottles without breaking the bank.