Small tip for AC settings during offroading

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Daggerfall
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Mon Dec 08, 2014 9:51 am

Hi,

I don't know if it is different in other cars or this tip was given before but I suggest you to keep AC re-circulation button always ON during desert drive unless you want to have a nice sand shower next morning .....especially after you cleaned your car :)

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zeemmee
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Mon Dec 08, 2014 10:36 am

Alternatively a/c should be full on during vacuuming & on different positions, to blow off the accumulated sand.
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Mon Dec 08, 2014 12:22 pm

[quote=zeemmee;39868]Alternatively a/c should be full on during vacuuming & on different positions, to blow off the accumulated sand.[/quote]

Yes definitely you should run it in different positions but it needs plenty of time to blow of the entire sand mine is still blowing sand since morning :)
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navadv
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Mon Dec 08, 2014 1:38 pm

It's a reminder of the good times you had! ;)
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Mon Dec 08, 2014 1:46 pm

[quote=navadv;39871]It's a reminder of the good times you had! ;)[/quote]

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ginger
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Tue Dec 09, 2014 7:06 am

For really big climbs where the engine is being stretched to the limit, you will find you will need to turn off the AC
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Wed Dec 10, 2014 12:55 am

Hi All

As [MENTION=2551]ginger[/MENTION] mentioned to turn the AC off on big climbs to sAve around 16 horse power. Also if the AC is off then don't open the OUT SIDE AIR to stop sand from filling in.

Regards
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Wed Dec 10, 2014 9:20 am

[quote=admin;39902]Hi All

As @ginger mentioned to turn the AC off on big climbs to sAve around 16 horse power. Also if the AC is off then don't open the OUT SIDE AIR to stop sand from filling in.

Regards[/quote]
Admin, from where you get this number? 16 horsepower is approximately power produced at 100 ccm motorcycles.

Window A/C unit, which is cooling down much bigger space is using about 1500 - 1800 kW, which is about 2 horsepower. So just compare volume of space in the car with volume in the room.

Additionally every car has A/C air blower filter, so when you're getting sand inside, probably the filter is already bad. In normal driving conditions the filter shall be changed every 10,000 km. In off-roading conditions, it should be changed more frequently (except the leading car).
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Sun Dec 14, 2014 12:28 am

[quote=caprihorse;39904]

Window A/C unit, which is cooling down much bigger space is using about 1500 - 1800 kW, which is about 2 horsepower. So just compare volume of space in the car with volume in the room.
[/quote]

Window A/C unit compressor is powered by electricity , on the other hand vehicles A/C units compressors is powered up mechanically by the vehicles engine power ( through a conveying belt ) . So admin may not be specific about the numbers but at least you can kiss 10% of your total engine power goodbye while driving with A/C on .
What goes around , comes around .
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Sun Dec 14, 2014 9:54 am

[quote=Abu Jimmy;39972]Window A/C unit compressor is powered by electricity , on the other hand vehicles A/C units compressors is powered up mechanically by the vehicles engine power ( through a conveying belt ) . So admin may not be specific about the numbers but at least you can kiss 10% of your total engine power goodbye while driving with A/C on .[/quote]
Horsepower (hp) is a unit of measurement of power (the rate at which work is done). There are many different standards and types of horsepower. The most common horsepower—especially for electrical power—is 1 hp = 746 watts. The term was adopted in the late 18th century by Scottish engineer James Watt to compare the output of steam engines with the power of draft horses. It was later expanded to include the output power of other types of piston engines, as well as turbines, electric motors and other machinery.

It doesn't matter what energy is driving motor or compressor, horsepower is always horsepower, it's a unit.
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