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Discussion Starter #1
Hi from Namibia again.

My RR lights aint bad but I need more light. Seeing that namibia has a few antelope species roaming our roads at night. I can post a picture of what a kudu bull did to my previous car a jeep wrangler at 60km on a gravel road. '' lucky for me I got a RR a 4x4 I always wanted''

Our law's state that with driving/spot lights need to work with your high beam.

The question is with the loom I acquired from LA sport here in windhoek, with relay and switches. I need to draw power from the highbeam in order to swich on the relay from where do I draw this current directly, from the headlight or somewhere else without hurting or damaging the BECM.????

The relay does get power also directly from battery.

Thanks again
 

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If wired correctly (did you get the original Land Rover wiring loom?) the relay feeds the lights from the battery and it's only switched by the BECM (small load).

This is the way it should be done and the original loom works this way, so no risk of BECM damage.

Sigi
 

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Hi,

If you buy the original loom from LR you will see that the system go pick the power from the high beams.

I use 2 Hella 3000 and until now I didn´t have any problem.



Regards,
Sérgio
 

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I had my aux lights wired into the fog lights when I was in Nam they only turned on when I turned the fog lights on, didnt have any problems with the police and again no problems with the BECM
 

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Discussion Starter #6
Hi
Did the wiring, everything works ok, with separate switch..

Do i need to up my alternator, when the engine is running with headlights on and aux lights ref's do drop is that ok or not????
 

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For years i wanted auxiliary light because i find the headlights of the Range Rover not effective. I didn't go this way because cooling is a big issue on all Range Rovers so you may not want to block the rad with 2 big lights.

Then i mounted some H4 Bixenons inside stock headlights. Although it's illegal it works very well.You got 100% more light than with halogen and i didn't receive any complaint from other drivers or cops and even french MOT. Since my headlights are well adjusted and since we have self leveling suspension, those are a good solution.
 

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Hi,

Well... You are thinking right but, if the 4.6 is like the diesel one, the fan don´t push the air outside/in in the cabin direction but from the inside out. When I mount my spotlights I checked that. So the lights don´t have any effect on the engine temperature, as I already saw on mine.

The fan push the air around the engine bay throw the radiator and blow out throw the grill so any piece of grass, bugs, mud and so don´t be stucked on the radiator and reduce is cooling capacity :wink: clever guys `)

Regards,
 

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SERSAN said:
Hi,

Well... You are thinking right but, if the 4.6 is like the diesel one, the fan don´t push the air outside/in in the cabin direction but from the inside out. When I mount my spotlights I checked that. So the lights don´t have any effect on the engine temperature, as I already saw on mine.

The fan push the air around the engine bay throw the radiator and blow out throw the grill so any piece of grass, bugs, mud and so don´t be stucked on the radiator and reduce is cooling capacity :wink: clever guys `)

Regards,
So you're saying that on your car, the air is pushed forwards and out of the grill at the front of the car?? Not sure that's right.....
 

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SERSAN said:
Hi,

Well... You are thinking right but, if the 4.6 is like the diesel one, the fan don´t push the air outside/in in the cabin direction but from the inside out. When I mount my spotlights I checked that. So the lights don´t have any effect on the engine temperature, as I already saw on mine.

The fan push the air around the engine bay throw the radiator and blow out throw the grill so any piece of grass, bugs, mud and so don´t be stucked on the radiator and reduce is cooling capacity :wink: clever guys `)

Regards,

That's effing hilarious right there.

Hey man... did you ever think that maybe fans can draw the air in, instead of just push it?

Priceless.
 

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Any fans can't beat the wind except this one.

 

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Hi,

For those that don´t believe, just test... I test mine when I mount the spotlights (original wiring loom buyed in the "stealer", STC8884)

I will say again, in the BMW diesel model the air is pushed from the engine bay throw the front grill... I tested in mine...

I don´t know if in the 4.6 is the same but I can assure you that in the 2.5DSE is like that.

Regards,
Sérgio
 

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SERSAN said:
Hi,

For those that don´t believe, just test... I test mine when I mount the spotlights (original wiring loom buyed in the "stealer", STC8884)

I will say again, in the BMW diesel model the air is pushed from the engine bay throw the front grill... I tested in mine...

I don´t know if in the 4.6 is the same but I can assure you that in the 2.5DSE is like that.

Regards,
Sérgio
90+% of fans are only ever supposed to operate one way. You can tell which way they are supposed to rotate, just by looking at the 'camber' of the blades. The edge of the blade that is "most parallel" to the 'plane of rotation' (= perpendicular to axis), is the side of the disk, that the air is sucked from. To get a little technical, the 'angle of attack' is lower on the inlet side of the fan disk.

Below is a pic of the cooling fan mounted on the front of my water pump. I've annotated the blades (in red) to point out the 'camber' of the blades.
[attachment=0:3xwt8wsq]paul.adshead.engine.cooling.fan.jpg[/attachment:3xwt8wsq]
You can see that at the lower/inlet side of the disk, the blades almost point in the direction the blade moves (= right to left in this pic). Whilst on the upper/outlet side of the disk, the trailing edges almost stick directly out of the disk, towards the water pump.
 

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SERSAN said:
Hi,

For those that don´t believe, just test... I test mine when I mount the spotlights (original wiring loom buyed in the "stealer", STC8884)

I will say again, in the BMW diesel model the air is pushed from the engine bay throw the front grill... I tested in mine...

I don´t know if in the 4.6 is the same but I can assure you that in the 2.5DSE is like that.
Extremely odd. As you drive, the ram air through the radiator will be countered by the air being pushed the other way by the fan.

I've never heard of such an arrangement.
 

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Take a look in Rave - it clearly states that the A/C condenser is the 1st thing in the airflow and thats at the front. Trust me that is on the Diesel as I ahve a Diesel.

I would like to see the A/C trying to cope if the air over the condenser has already been heated by all the other coolers.
 

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Discussion Starter #19
my lights are working fine. The KC's is to small to makke any difference on air intake.

But i would agree that the fan suck air into engine bay from outside as not to put strain on the fan at high speeds. Also if than fan blew air from in out you create a type of vacuum and youre rr will overheat.
 

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Hi,

Well mine just blows the air through the radiators, it's not just an idea it's a fact, I have checked again. (the radiator fan in the diesel one is riveted to viscous so is only 1 piece, it can´t be mounted in wrong position) The car always worked like this, don´t overheat, never throw out water, and keep doing is job perfectly..

In the RAVE you can read this:

"VISCOUS FAN
The viscous drive unit for the cooling fan on diesel
engines work on the same principal as that fitted on
V8 engines but is of slightly different size. See this
section."

And than in the V8 cooling part:

A viscous fan is attached to the water pump drive
pulley. The fan is secured by a left hand threaded nut
to the pulley spindle. The fan draws air through the
radiator to assist in cooling when the vehicle is
stationary.
The fan rotational speed is controlled
relative to the running temperature of the engine by a
thermostatic valve regulated by a bi-metallic coil.

Regards,
 
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