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Old 03 November 2009, 13:50   #31
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yep, the landrover isnt exactly standard.
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Old 04 November 2009, 04:40   #32
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Hee hee not with your transfer ratio and constant 4 wheel drive
So should I be planning a disco ratio change and fit some s.winch freewheelers?
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Old 04 November 2009, 05:16   #33
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So should I be planning a disco ratio change and fit some s.winch freewheelers?
You need to modify the transfer case to be part time 4x4 too, Bearmach did do a kit which was sold as "defender 110/90 free wheel hub kit" which included a splined spider to replace the guts of the centre diff.
With a standard 2.8 i would run a 1.410 transfer case until i had upgraded the engine, its plenty long legged enough if you run 235/85/16 or larger tyres, unless you spend hours every day at 70+ on the Mway as i do.
the 1.410 is best all round, which is why its the std ratio for 110, there is a lower 1.666 which is hideously low.
the free wheel hubs and part time 4x4 do make a small difference to economy and performance, but i wouldnt bother, the only reason i did it is because the series 2 front axle has no CV joints and isnt suited to constant 4X4, i drove a 110 with selectable 4X4 and the handling in the bends wasnt good, loads of undeersteer, quite unstable really, especially once youre used to keeping it planted in the carpet around bends and letting the front axle pull you round.
you should get low 30s MPG driven sensibly, maybe even 35 with an intercooler.
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Old 11 November 2009, 05:50   #34
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after the pathfinder was tuned by nissan the consumption is the same 26/29mpg
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Old 18 November 2009, 04:15   #35
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after the pathfinder was tuned by nissan the consumption is the same 26/29mpg
Most people rekon slightly better MPG with a remap. i think its probably because peak torque is higher, so you can change up sooner keeping the engine nearer to the rpm that coincides with max torque, this is where volumetric effeciency is highest. However whenever i have driven anything remaped its worse on fuel .....at least until the novelty wears off and i stop driving like a knob
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Old 18 November 2009, 15:33   #36
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Most people rekon slightly better MPG with a remap. i think its probably because peak torque is higher, so you can change up sooner keeping the engine nearer to the rpm that coincides with max torque, this is where volumetric effeciency is highest. However whenever i have driven anything remaped its worse on fuel .....at least until the novelty wears off and i stop driving like a knob
Yes but think of the poor range rover sport owners who dont even realise.....
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Old 19 November 2009, 00:56   #37
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after the pathfinder was tuned by nissan the consumption is the same 26/29mpg
Tuned or just reset the ecu ?
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Old 19 November 2009, 02:06   #38
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Quote:
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P.S. The figures I quoted are pretty exact since the BFGs are about 7% larger in circumference and now my speedo is bang on against the GPS. First thing I noticed on putting on the BFGs was a drop in mpg. Thought it was down to the rougher tread but then realised with the standard tires the computer must be overestimating mpg since it is overreading speed/distance.

Richard
That`s interesting because I have big Cooper Zeon LTZs on mine and I know that when I worked out my mileage on a recent long haul to Scotland the mileage virtually matched what my sat nav said the distance was going to be,and I expected with the larger rolling circumference it would understate the actual miles. so the original wheel/tyre size must be wrong.
On another point there is a significant difference in economy between Euro3 engined Navaras and the later Euro4 engine.
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Old 19 November 2009, 02:54   #39
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I had a simialr difference with GPS and speedo, the total mileages indicated were interesting, if the GPS was to be believed my fuel consumption was even worse than thought as speedo over read and mileage appeared to similarly over read.
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Old 19 November 2009, 03:19   #40
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Every vehicle I have checked has an over reading speedo. They probably do this as a matter of course so that all the errors/uncertainty factors (from type wear, inflation pressure, load etc.) are all one way and you never accidentally go over the speed limit.

The effective diameter of the tyre must try to increase at speed as it is centrifuged out. Or perhaps the downforce on the car cancels it out.

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