Car Forums 4.6L and 1.2, is it the same measure?
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 09-08-2005, 06:04 PM #1 gooky CF Newbie   Join Date: Sep 2005 Posts: 2 4.6L and 1.2, is it the same measure? I have a thunderbird 94 4.6L. I would like to know what does 4.6L mean and what does it meassure? I am curious since it sounds like a lot compared to the cars in europe which are normally in the range 1.0 - 3.0. Somebody told me that it is a measure of the size of the pistons in the engine??? Please help, thanks in advance.
09-08-2005, 06:08 PM   #2
Oomba
Banned

Join Date: Jan 2005
Location: Ohio
Posts: 1,137
Quote:
 Originally Posted by gooky I have a thunderbird 94 4.6L. I would like to know what does 4.6L mean and what does it meassure? I am curious since it sounds like a lot compared to the cars in europe which are normally in the range 1.0 - 3.0. Somebody told me that it is a measure of the size of the pistons in the engine??? Please help, thanks in advance.

It measures how much fuel/air the engine can hold at one time. The reason alot of European cars are lower is because gas is more expensive there.

 09-08-2005, 06:18 PM #3 gooky CF Newbie   Join Date: Sep 2005 Posts: 2 So indirectly it is the same as the size of the pistons, since the bigger they are, the more gas/air there can be at certain time, right?
09-08-2005, 06:41 PM   #4
TheFieroKid
CF Freak

Join Date: Mar 2005
Posts: 578
Quote:
 Engine displacement Engine displacement, o engine size, is the volume displaced by all the pistons in an engine (piston displacement multiplied by the number of engine cylinders). For example, if one piston displaces 25cu. In. and the engine has four cylinders, the engine displacement would be 100 cu. In (25X4 = 100)

Hope this helps.
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 09-08-2005, 08:45 PM #5 chris_knows ๑۩۞     Join Date: Apr 2005 Location: Ontario, Canada Status:Trying to find my ish Posts: 7,630 Basically what FieroKid said, another way that it is known is Cubic Centimeters (CC) and a 1000 CC engine is the same as a 1 litre engine. __________________
 09-10-2005, 06:50 AM #6 Mathew -BMW 3rd Year Apprentice-     Join Date: Aug 2004 Location: Vancouver, BC Posts: 2,053 take one cylinder of an engine. The volume of the area above the piston in the cylinder when the piston is at bottom dead center is the displacement of the cylinder. multiply that volume by the number of cylinders. your 4.6: 4.6 / 8 = .575 L per cylinder.