Okay....reason says that boost at the turbo will be higher than boost in the plenum. The intercooler and piping will often be sufficient restriction to cause 2-3# of boost drop. That is normal. Aftermarket ics may cause more like 1# drop.whistle87:
hooked up guage the right way.and now it barely gets up to 10lbs of boost.before it would climb right up to 12 or more.it was hooked up to the compressor housing before.even though the factory boost guage reads like 15....the other reads much lower than before.i knew the factory guage was off,but by that much?!?!should i just ditch my t60 and get a smaller turbo to work better on the street?