Nitrous and Turbocharging
You guys really need to start learning to use nitrous. Whenever you try a different turbo, exhaust headers, fianl drive and transmission gearing or change any other major tuneup item, the question always arises, "what will my turbo spoolup be like?" Then countless hours of tweaking a/r housings and T/C configurations, etc., is spent trying to get the optimum spool up from your new tuneup. With nitrous, that concern is out the window and valuable time can be spent on other aspects of your tuneup. It amazes me how slow the Buick community is at catching up to the rest of the turbocharging world. Nitrous injection and turbocharging is the perfect marriage. You really need to experience it to appreciate it better.
As commented earlier, the point at which a T/C works for a turbo application and it doesn't is a very, very fine line. And that line changes from one engine configuration to the next, requiring how many transmissions r&rs and testing and the expense of it. Nitrous does away with that. It smoothes out the small engine (off boost), big engine (on boost) dual personality that 4 cylinder and small 6 cylinders have with turbochargers. I'm aware most are scared of using nitrous, but really, there are plenty of people, even on this board that are using it with fantastic success. And I'm sure they all would bend over backwards with advise to help you all get caught up to the rest of the turbocharging world. Keep a close eye on the import crowd. They are at the cutting edge of turbocharger technology and the Buick crowd seems to muddle around with old school for painfully long periods of time. Just look at alcohol injection. Just recently did we all discover the miracle of it and it's been around for how long? WWII or earlier? Too much time and energy is wasted IMO on finding that miracle T/C that will magically work for all configurations. So much more is possible by just using a tighter, more efficient T/C and nitrous. Then the T/C setup becomes so much less important. Nitrous does away with the 'latest flavor of the day T/C' that is so prevalent on this board.