[DragonofBC]

Are you sure it's your turbo screaming or could it be your clutch not grabbing properly and having the flywheel spin against it. If it is happening only when you quickly shift to 2nd, I'd take a look at the clutch. So far all your evidence(low MPH, poor 60' time, trouble quickly shifting) says to me that you are having clutch issues. Are you still running the stock clutch? How many miles are on your clutch? How often do you launch your car? It might be time to look into a new one.

Here's your dilemma: If your clutch is good but old, you should be able to practice and get your 60' time down. In practicing, you're probably going to wear out your clutch and have to get a new one. If your clutch is bad, you won't be able to bring your 60' time down with practice. You'll probably get frustrated trying and end up completely destroying the clutch (which could mean a tow truck home from the "track").

Here's what I would do. Don't run your car hard for a bit. Check out all the simple stuff. Retighten your pipes. Do a boost leak check. Check your turbo and make sure the fins aren't chewed. If you don't find anything, check buy yourself a performance clutch of choice and put it in the trunk. Then practice your face off trying to bring down your 60' time. If you blow the clutch, you've already got your replacement. If your clutch ends up fine, you've got your buffer for down the road when you do end up needing a clutch.

This is of course assuming its a clutch problem... It's all speculation based in your details.