Filter Minders for Dummies

[DOSZORROS]

I think the proper way to determine whether or not you have a restriction is to put a differential pressure port and monitor gauge just upstream of your turbo inlet. This will tell you how much restriction you have in the total intake system to the turbo.

I have a 500 hp series 60 and I can get about 26 lbs. boost at standard conditions. That is assuming the boost gauge is reasonably accurate (I have not calibrated it). This leads me to believe that I do not have much restriction in the inlet system.

Where I would like to see more restriction is betweem the fuel fill hose and my bank account.