volvo 940 turbo, stock tdo4 turbo, spikes around 18 drops down to 15lbs of boost, i get great power lower rpm or from 0 to 50 mph, but its a slug on the interstate, not much power at higher speed.. is a te05 turbo what i am looking for? if not what turbo should i be looking at.. looking for 15-17 lbs of boost consistantly, not have it die out at higher speed