ok so i got a brand new tial 38mm wastegate, my question is, is that i am going to run the vac line to the compressor of the turbo.....cause my t3 already has the fitting on it, i read on H-T that if you run it to the compressor you will see like 2psi drop at the motor, so i have a 5psi spring in it now and i cant decide if i should get either

.70 bar/10.15psi which you if H-T is true would be like 8psi at the motor which i want! OR
.60 bar/8.70psi and if H-t is true would be like 6psi

I want around 8psi at the motor

can anyone let me know what they think thanks

 

OR a boost controller?