I have been thinking about the problem of  turbochargers Overheating , Over running, in most set ups, in the AC rotary conversion .  My ideal is to locate the turbocharger farther Down Stream of the exhaust manifold where's theirs  less  heat and pressure to contend with . It's my understanding  that the car manufacturers mount them as close to the manifold.  as possible to reduce Turbolag which isn't as much a  problem in AC as it is with cars .
Clifton

The P47 had the turbo in the tail cone.

Paul Lamar

first off , don't use the OEM parts, it's not designed to stand up to
anything close to the constant load that aircraft use puts on it..  For
that kind of  long term output you'll want a replacement that spools
with lower turbine RPM ( still staying in the max eff. range) a 360
thrust bearing, stage 4 trim, this is a larger shaft at ~0.375" to
0~540" over the basic T03b trim. This also allows you to use ceramic
and/or inconel turbines as well.. up[grade the HItach model to a newer
GTP trim T04e based CHRA with the newer S or R trim housings.. ( newer
design but THE newest so you can get it setup without killing the bank..
Stay away from  ball bearing as they grenade if over heated.. with no
warning.

just some thoughts..

Ian
BAS