I was reminded of this by a thread recently and remembered that I never found any good info on how long the intake system will hold pressure once the compressor is removed.
On my 91 TT and FC rx7 they only held pressure for less than 5 seconds and I seem to remember someone saying their car held pressure for 15 mins?? Seems impossible...
Follow Ups
How long does your Z Hold pressure for during a boost leak? - Supermario680 (WI)06:25:46 10/14/12