stevewaclo
10-23-2009, 04:11 PM
:cool: Hello Gang:
Here's an excellent explanation of a subject I always found somewhat of a mystery:
http://www.lfsforum.net/showthread.php?t=58201
Here's the short version for those short on time or patience:
Engine braking happens when an engine is reved up to a higher than idle speed and then the throttle is closed, since the engine is essentialy an air scavenger (pump) it will still try to take in enough air to maintain it's current speed. Because the throttle is closed it will generate a vacuum in the intake system and even in the cylinders
One thing for sure, compression braking it ain't!
Steve
Here's an excellent explanation of a subject I always found somewhat of a mystery:
http://www.lfsforum.net/showthread.php?t=58201
Here's the short version for those short on time or patience:
Engine braking happens when an engine is reved up to a higher than idle speed and then the throttle is closed, since the engine is essentialy an air scavenger (pump) it will still try to take in enough air to maintain it's current speed. Because the throttle is closed it will generate a vacuum in the intake system and even in the cylinders
One thing for sure, compression braking it ain't!
Steve