Dec 8 2006, 11:50 AM
QUOTE(Malaysian @ Dec 7 2006, 01:00 AM)
coz 4 wheel drive
more tayar contact on the road
more drag
aiseh.......wrong argument there......more tayar contact on the road
more drag
you say 4 wheel drive --> more tayar contact on the road
then 2 wheel drive --> not all 4 tayar contact the road ah?
QUOTE(sakaic @ Dec 7 2006, 05:01 PM)
There is a difference between the terms 4x4 and AWD. Go check it out.
But ultimately, the extra mechanical components like gears and shafts etc., do increase the amount of drag on the system.
Its like having paying 2 workers to fix a window. You may get double the productivity but you also have to pay double the wages. So its how much more efficiency you can get out of having 2 workers that make the difference.
The same goes for 4x4s and all wheel drives. You get more traction from 4 driving wheels but then the amount of stuff you have to turn increases. Thats why they tend to weigh more.
that is right.But ultimately, the extra mechanical components like gears and shafts etc., do increase the amount of drag on the system.
Its like having paying 2 workers to fix a window. You may get double the productivity but you also have to pay double the wages. So its how much more efficiency you can get out of having 2 workers that make the difference.
The same goes for 4x4s and all wheel drives. You get more traction from 4 driving wheels but then the amount of stuff you have to turn increases. Thats why they tend to weigh more.
more FC because more mechanical parts to move all the 4 wheels.
also because the Laws of Thermodynamics tells me so.
First Law of Thermodynamics: Energy can be changed from one form to another, but it cannot be created or destroyed. The total amount of energy and matter in the Universe remains constant, merely changing from one form to another. The First Law of Thermodynamics (Conservation) states that energy is always conserved, it cannot be created or destroyed. In essence, energy can be converted from one form into another.
4X4 has more power. power has to come from somewhere. so come from petrol combustion lah. 4X4 has more power than 2 wheel drive. so naturally 4X4 uses more petrol than 2 wheel drive.
This post has been edited by tester1979: Dec 8 2006, 11:52 AM
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