NMB2
Dunce
I can say with 99% certainty that other members will back me up in saying 16-18psi of non cooled boost would melt your engine down, even if you could get it up that high in the first place. Don't get me wrong 16-18psi is attainable but you need to really know how to tune your turbocharger with your engine and fuel input to get it there. You really need to have seen a moose pump work in a truck to see just exactly how fast the EGT's climb when you get into full boost and the pedals on the floor. Personally I think the intercooler is just as important as the turbocharger is when you're going to be using a moose pump.
Fortunatly, thats not true at all. There are many trucks running that amount of boost without an intercooler, or EGT issues. My truck pushes 20psi at will, unloaded or loaded, and I cannot get my EGT's over 1100*
No intercooler.