Sport Compact Disses Mazda Motor Company
04-06-2003, 07:57 PM
#14
Senior Member
Join Date: Nov 2001
Location: South Jersey
Posts: 888
The way I understand it : A 3 liter v6 only displaces 1.5 liters. The way they measure displacement : They Measure Bottom dead center (BDC) To top dead center (tdc), thats the height. Then the diameter of the cylinder. Then Diameter* pi=circumference. Circ.*height=volume. Thats the volume for one cyl. Times it by the # of cylinders and that is the engine size.
If a 1 cylinder engine was being measured like this it would be accurate, BUT not in multicylinder engines.
Example: 4 cyl engine. 2 cyls are TDC and 2 are BDC so only the 2 that are BDC are actually displaceing anything.
Tell me if you get what I'm saying.
If a 1 cylinder engine was being measured like this it would be accurate, BUT not in multicylinder engines.
Example: 4 cyl engine. 2 cyls are TDC and 2 are BDC so only the 2 that are BDC are actually displaceing anything.
Tell me if you get what I'm saying.
04-06-2003, 08:57 PM
#19
Senior Member
Join Date: Jan 2003
Location: London, Ontario
Posts: 2,871
Originally Posted by rotarychainsaw' date='Apr 6 2003, 07:57 PM
The way I understand it : A 3 liter v6 only displaces 1.5 liters. The way they measure displacement : They Measure Bottom dead center (BDC) To top dead center (tdc), thats the height. Then the diameter of the cylinder. Then Diameter* pi=circumference. Circ.*height=volume. Thats the volume for one cyl. Times it by the # of cylinders and that is the engine size.
If a 1 cylinder engine was being measured like this it would be accurate, BUT not in multicylinder engines.
Example: 4 cyl engine. 2 cyls are TDC and 2 are BDC so only the 2 that are BDC are actually displaceing anything.
Tell me if you get what I'm saying.
If a 1 cylinder engine was being measured like this it would be accurate, BUT not in multicylinder engines.
Example: 4 cyl engine. 2 cyls are TDC and 2 are BDC so only the 2 that are BDC are actually displaceing anything.
Tell me if you get what I'm saying.
STROKE = distance from BDC to TDC
