Originally Posted by
Dicko&Sarah
When the boost drops car still runs fine, to do the leak test we took filter off and blocked off the hose then plumber a t piece into the vacuum hose going to inlet and used compressor to fill the system. Got up to just over 1bar on boost gauge and leak was significant so i dread to think what it will be like at 2bar.
Mark i dont think a cossie style actuator will fit, im gonna fit standard inlet back on and see what its like.
you must attempt to take it to 2 bar for the test. Trust me you haven't got a compressor big enough to loose the same amount of air as a cosworth boosting to 2 bar then dropping back to 1 at full chat. If you can pressurise the system to 2 bar using a commercially available compressor even with a boost leak then that leak is not enough for you to loose a full bar of boost at 5k. A leak might sound very impressive and loud but it could just be a small one.
You must take the system or attempt to take the system up to the pressure you are using on the road.ie 2 bar.