turbine & housing trim
 

Wondering if anyone has done this and what are the results.
If a turbine wheel is an Otrim and the housing is a Ptrim (bought wrong housing),
of course there will be a gap bewteen the wall and the turbine wheel. What will be the result?
If anyone has a TO4E w/ a 57 trim and a 60 comp housing, does it usually come with a Ptrim wheel or an O trim?? I'm guesing I have an Otrim (no haven't measured since it's mounted) because the Ptrim housing is just a tad larger than the wheel.