This has been covered before, and before and again and again and again.
Stay far far away from this setup.
This is the Garrett To4z / To4R 67mm compressor wheel.
It will fit the ct26 shaft.
Keep in mind the ct26 shaft is bigger than the To4 Garrett Shaft this wheel is designed to fit.
That being said, the problem with pushing this large of a compressor wheel into a ct26 compressor housings is surge.
Surge = turbine shaft snaps
From all the results that I have found, the ct26 STOCK compressor housing starts running into surge & flow problems around 58lbs / min.
This is typically the end of the line for the 60-1 compressor wheel.
Notice I did not say 60 TRIM.
That being said, the To4R / To4Z 67mm compressor wheel flows almost 75lbs/min.
Thats a far cry from the original Ct26 compressor wheel at just over 35 - 38lbs / min!
*WAIT THERES MORE*
The stock ct26 turbine wheel, in my opinion, does not have sufficient enough size to produce the torque required to turn such a large compressor wheel efficiently.
This is why you see P trim turbines, small turbine housings (.58), with the T67 wheel spool almost as fast as a stock ct26.
Im going to say this once, and you need to listen:
DO NOT RUN ANY THING LARGER THAN A 60 TRIM (NOT A 60-1) COMPRESSOR WHEEL IN A CT26 HOUSING WITH A CT26 TURBINE.
