Good questions

They are all Precision Turbo units

The so called Gt850 is a PT62/62 with special AMS chosen compressor and turbine housings

They also have a few different 62/62 you can get with other back housings and front covers

they also make a 62/65 which has a larger 65 mm back wheel - kind of an updated P trim - maybe more like a stage V wheel

The turbo I have uses the 67 mm compressor wheel from a T67 along with the turbine wheel of the 62/65 which has the updated stage V turbine wheel in lieu of the standard P trim.

If it were not a PT67/65 it could instead be a PT T67 / P trim. The 65 wheel represents a more modern better performaing wheel.

 

@dyno flash .....
how wud u compere this turbo wid hta gt35r or hta gt37r ...i need ti upgrade my standerd gt35r so wat wud be the difference in tha standerd gt35r and 6765 ,or hta gt35,gt37r turbo ?
thanx

 

thanks for the info, its hard to keep track of all the turbo options these days with all the new ones from Precision, FP, BW ect.

 

So then the comp wheel is not billet in your case? Or is the comp wheel from the 67 billet already....

Sounds like it's just a matter or testing what combo works best w/ your given set-up......no wonder guys like you and DB etc are always testing new configurations