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SFMU Vacuum Source

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redeclipse7782

15+ Year Contributor
463
7
Oct 20, 2004
Worcester, Massachusetts
Would it be alright to connect the vacuum source on the SFMU to the vacuum nipple on top of the throttle body? The vacuum source on the SFMU is used to see boost and raise fuel when it sees boost. So wouldnt this be a good location for the SFMU to see boost at? Plus since my SFMU is mounted right next to my throttle body it would be a short vacuum line with a quick response. Has anyone done this? Thoughts>>?
 
redeclipse7782 said:
Would it be alright to connect the vacuum source on the SFMU to the vacuum nipple on top of the throttle body? The vacuum source on the SFMU is used to see boost and raise fuel when it sees boost. So wouldnt this be a good location for the SFMU to see boost at? Plus since my SFMU is mounted right next to my throttle body it would be a short vacuum line with a quick response. Has anyone done this? Thoughts>>?


I'm not sure I know what nipple you are talking about exactly but your source needs to be behind the throttle body so when the throttle body closes, the sfmu drops the fuel pressure immediatly. Frankly I would just tee off of one of the vaccume lines behind the manifold like the brake booster line.
 
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