Swirl control valve

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Singlecamstunna
Posts: 10
Joined: Sun Jun 20, 2010 3:22 pm

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If I remove the secondary butterfly valves would that cause me to fail smog? And why would coolant leak from the head where it meets the block? Incorrect install?

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seang
Posts: 2026
Joined: Tue Dec 16, 2008 8:09 pm
Car: Ford Fiesta ST
Location: Michigan

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Swirl does play a role in combustion, but I am not sure if deleting the butterflys would make you fail smog.
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