fritts

iTrader: (5)

I was wondering do the major turbo rebuilding houses turn the compressor housings to a drawing of the compressor wheel or some type of sheet that Garrett or wheel manufacturer provides. Or is this one of those that's about right items hit the major and minor diameters and your done. Looking over all the new and used turbos I have dealt with I would not call the clearances between the compressor housing to wheel precision. My assumption is that they clearance them for wear (endplay) that occurs during the life of the turbo. If there are drawings would anyone here have access to them, or how to obtain them?

fritts

iTrader: (5)

Bump,

Here the specifics I'm looking to move to a T04R T67 from a 62-1 and wondering why I'm not turning the housing myself verses paying 300 some to have someone else do it.

Sean do you know how this works. I've hear that the center bore is the main change but can't understand why the curvature wouldn't change by turbo series.

RacerXtreme7

iTrader: (2)

The bore AND curvatures will be different. It's cheaper to buy the appropriet housing. Actually, its cheaper to just buy the whole turbo, if your thinking of using your existing one and upgrading the comp only. Your gonna find after replacing the comp wheel, the back plate will need replacing or mach work, the compressor housing will need machine work or replacing, then a rebalance. It makes more sence to just buy a complete turbo ready to rock and sell the old one. Machining those contours on a manual lathe is no easy task.

~Mike..............