Sweet spot for PTE 70 p-trim

[badgrandntl]

What boost pressure do you think I should start at and where is the sweet spot for this turbo?

Thanks for the help in advance, this forum is awsome , thanks to the people on it, a wealth of knowledge and experience.

This is my new combo:

PTE 70 ptrim h-housining on the intake and .83 exhaust housing
60 lb injectors
Stock motor, very, very minorly ported heads
3" S.S. Keith Mease down pipe
Heated oxygen sensor
Walbro 340 hotwired fuel pump
RJC Powerplate
Razors Alky Kit (still have 40 gallons of Methanol)
3" S.S. ATR single shot exhaust
Ford Powerstroke intercooler
Direct Scan
LS1 Msss air Flow sensor + translator
Eric Marshall chip
Dual electric fans

Hurst roll control
Rebuilt trans by Jimmy's
9.5" lockup vigalante 3200-3500 stall

 

[boostingbuick]

The heads will change your sweet spot from others. But It should flow happy around 25 psi.

 

[bison]

28-32 psi for the compressor wheel. The exhaust pressure will limit the potential before the compressor runs out of steam unless you go 4 bolt and run a big a/r.

 

[badgrandntl]

THanks

Thanks for the input guess I will start low and move up, I think I will order the chip for around 25-26 psi. Any other ideas. Thanks Scott