What is the standard compressor bore size for the 14b and 16G compressors?

[TrevorS]

I think the compressor wheel center bore for a 14b or 16G is 6.5mm. Can anyone confirm?

 

[JusMX141]

That is correct; although the shaft itself is 6.5mm, so I'd imagine the wheel is a tiny bit larger. I wouldn't be able to tell you exactly what the number is without measuring.

Garrett T3's have a 1/4" shaft, which comes out to around 6.35mm.

 

[TrevorS]

Close enough, thanks very much !