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Old 29th December 2015
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Ireeman Ireeman is offline
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Quote:
Originally Posted by aswracing View Post
Blow-by is fundamentally just exhaust that went past the rings instead of out the exhaust port. It's depleted of oxygen, it's hot, and it picks up moisture and oil in it's travels through the crankcase and into your intake tract. So it's displacing oxygen in the intake charge that would otherwise contribute to combustion. It also heats the intake charge which contributes to detonation. It's just a bad thing all the way around, robbing power, causing detonation, and contributing to carbon build-up. Well worth it to remove it from the intake tract and vent it to the atmosphere or exhaust instead, in my opinion.
Absolutely, there are specific gravity chemical reactions that do not help as well, depending on quality of fuel.
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