What would the spool (rpms) be for a hybrid t3 60trim?

Depends on what you mean by 60 trim, 60 trim on the compressor(cold side)or on the turbine(hot side)? If your AR on the turbine is <.5 then it will spool up quick but not have as much top end, if its >.5 then you will get slower spool up, but better top end. There are so many different version of the t3/4 it is nearly impossible to tell you what your getting into without the exact specs on it.

Kevin
The old:


The new:

i had one and it spooled at 3200-3500 rpm.