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Location:
Brisbane
Registered:
May 2002
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Re: turbo's ( AFM with bov?)
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Sun, 15 May 2005 08:03
 
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WHen you take your foot off the accelerator, the air going through the throttle nearly comes to a standstill... and the air going through the AFM should nearly come to a standstill also. The presence of an atmo-venting BOV allows a differential to exist, and that's where the fuel mixtures get screwed up.
There's no reason to have an atmo-venting BOV on an engine anyway, whether AFM or not. They're also illegal. Plumb-back works just as good without any of the problems above, but of course they don't sound as hektik. 
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