[Tom]

Originally Posted by Oberon67

Well, what can I tell you?

I post that I'm interested in building a six for low-end torque to improve on-the-street driveability, and I get feedback talking about turbos that kick in "around 3000-3500 rpm."

One or the other of us wasn't communicating. It's entirely possible that I don't listen worth dung, it's true. It's also true that I began the thread with some preconceived notions in mind that perhaps I didn't state properly up-front. If that's the case, I apologize.

Nobody said anything about using a turbo that kicks in at over half the max RPM of the motor. Thats where you keep taking the turbo discussion even though we tell you different.
Use a small enough turbo and plumming and you'll make boost at 1000rpm. It probably won't make power past 4000rpm but theres your low end. It can and is done on a daily basis, for many decades.