Thread: To Do Mods List
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Old 08-28-2011, 07:40 PM   #14
Wonderfully Awful Idea
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Drives: 2010 2SS/RS
Join Date: Aug 2010
Location: Battle Ground, WA
Posts: 1,456
Originally Posted by iMONEY View Post
what the hell is a catch can?
A catch can removes the suspended oil that is in the hot gases in your engine block. It goes inline with the return from the PVC that regulates pressure in the block. It normally sends this in to your intake to be burnt. It is the biggest cause of deposits on valves and carbon build up in modern engines.
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