ATDC stands for "After Top Dead Center," a term used in combustion engines to describe the position of the piston after it has reached its highest point in the cylinder. This position is critical for understanding the timing of the combustion process and the intake and exhaust strokes. ATDC is measured in degrees of crankshaft rotation and helps engineers optimize engine performance, fuel efficiency, and emissions control. Proper timing related to ATDC can significantly influence engine power output and efficiency.
Combustion is a hemical reaction.
The waste products of combustion leave the internal combustion engine through the exhaust valve.
Combustion is a chemical property.
Combustion is a an oxydation reaction, a reaction with oxygen.
A combustion reaction is an oxidation reaction - combustion need oxygen; the products are water and carbon dioxide.
In mechanical terms, ATDC stands for "After Top Dead Center." It refers to the position of a piston in an internal combustion engine when it has moved past the highest point in its stroke (top dead center) and is descending. This measurement is crucial for timing the ignition and fuel injection events to optimize engine performance and efficiency. Understanding ATDC helps engineers design and tune engines for better power output and emissions control.
After Top Dead Center.
Firing after top dead center (ATDC) refers to the timing of a spark or fuel injection in an internal combustion engine, occurring just after the piston has reached its highest point in the cylinder (top dead center). This timing is crucial for optimizing engine performance and efficiency, as it allows for proper combustion of the air-fuel mixture as the piston begins its downward stroke. Firing ATDC can help improve power output and reduce engine knocking by ensuring the combustion process aligns with the piston’s movement. Properly adjusting this timing is essential for the engine's overall performance and emissions control.
1600 = 5 atdc
Intake Valve open 64 Degree BTDC and closes at 34 Degrees BTDC. Exhaust valve opens at 36 or 37 Degree's ATDC and closes at 79 Degrees ATDC
Arbitrary Time-Dependent Current
10 degrees btdc with spout connector unplugged.
it is 12 atdc for the 88, I assume they are the same
45 degrees After Top Dead Center.... used in terms for motor cylinder timing...ports (exhaust,transfer,etc)
45 degrees After Top Dead Center.... used in terms for motor cylinder timing...ports (exhaust,transfer,etc)
19 degrees BTDC, + or - 1 degree at WOT. Around 4 degrees ATDC idle timing.
5 deg atdc --------------------------------------------------------------- Motorcraft.com shows the timing on a 1986 Ranger 2.3 L as 10 degrees BTDC