Quote:
Originally Posted by 97ChameleonTA
Thanks to Phil for posting this up! A lot of people can benefit from this information as long as it's done correctly. Too much gap can lead to passing more air through the supercharger during normal driving which will just drive up IAT's.
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It vacuum control so it opens 100% as soon as you start the car.
When you are under boost if you have not made the adjustment it is 99.5% closed.
Once you adjust it then it will be 100% closed.
It is similar to a throttle body however vacuum controls it opening and closing so it's either OPEN or CLOSED.
So there is no such thing as more air passing through the charger under normal driving conditions it will be open during non boost driving and air will divert over the charger instead of through it....then when under boost the vacuum will close the blade and it will boost up, if you have made the minor adjustment you will not lose any boost pressure leaking back out of the blade.