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Old 05-26-2012, 08:47 AM   #39 (permalink)
ImportConvert
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Quote:
Originally Posted by Red__Zed View Post
Cat material is fairly regularly sucked into the engine when they go bad. You should try searching these things before posting about them.

I think you misunderstand the way the valves are timed. Overlap is very common.
Indeed, especially with a high-revving NA motor. With boosted motors, overlap=power-loss and is kept to a minimum.
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