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Old 05-19-2016, 09:02 PM
4.8iS Le Mans_NZ 4.8iS Le Mans_NZ is offline
Join Date: Apr 2016
Location: Auckland, New Zealand
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Originally Posted by upallnight View Post
At WOT (wide open throttle) there is very little manifold vacuum. At idle because the throttle plate is close and there is just a tiny gap for air to pass through, the vacuum is High. Don't believe this, connect a vacuum gauge at an manifold inlet such as the brake booster and see the vacuum at idle and the vacuum when the throttle is opened.
Of course, that's right.........I was having a little brain fade there.....

2004 X5 4.8is - Le Mans blue/Cream beige
1994 E31 850CSi - Sterlingsilber

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