Originally Posted by Orb
The hose wants to blow from the pressure which is the least path of resistance. The clamp purpose is to counter those forces. It is not possible for a clamp to make a full seal under any circumstances. If the hose has expanded due to oil contamination it will require a much higher clamping force and may leak at higher boost levels regardless and may not throw a code. I had this problem and now solved. There is not much to debate as this is a very well know issue and mostly ignored by the aftermarket. One will need to do their own research to validate my comments instead of making assumtions.
Considering pressure physics and the ability of the hoses to swell this actually makes perfect sense, thanks for taking the time to explain. Come to think of it I have been chasing a small boost leak on the intercooler outlet and expanded hoses could be the culprit.