Re: -10 vacume when installed boost gauge - Saab Performance Bulletin Board - Saabnet.com
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Re: -10 vacume when installed boost gauge
Posted by tandino (more from tandino) on Sun, 20 Jan 2002 05:05:53
In Reply to: -10 vacume when installed boost gauge, devon, Sat, 19 Jan 2002 21:05:34
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You will have vacuum at the gauge when the cars not on boost , this is normal, under normal running the car pulls its air/fuel in by vacuum ie as the cylinder goes down it pulls the air through the throttle body,(normal cylinder filling) this is why you get vacuum on the gauge, as soon as you get boost the air is forced into the engine and you get a positive pressure reading on your gauge
Hope you understand this.
Pete.
posted by 62.7.1...
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