bw 366 turbine wheel

[bd blk 12v]

I'm planning to purchase a new s366 with a t4 .91 turbine housing. I notice in the Borg Warner website there are two turbine wheel sizes listed. My turbine is a small ported.70 wastegated t3 71mm wheel. What would be a better choice in a 12v the 68mm or 73? My turbo seems to light very well just falls flat on top and not clear the smoke egt 1500* on a hard pull. Thanks for the suggestions and help.

 

[Headcase98002]

I don't think you would want to run that smaller 68mm turbine paired with a 66mm compressor.