boost controller ?

[motomafia]

quick question guys, i have a external wastegate , i had a 67 trim turbo and had the psi at 25 . . . just put a 70 trim on and i was wondering if the boost controller would need re adjusted to stay at 25 psi or if it would be the same? also i wanted to know if it does need changed turn it up or down anotherwords will the new turbo make more or less than 25 psi at the old setting since its now a bigger turbo

 

[Joe Lubrant]

quick question guys, i have a external wastegate , i had a 67 trim turbo and had the psi at 25 . . . just put a 70 trim on and i was wondering if the boost controller would need re adjusted to stay at 25 psi or if it would be the same? also i wanted to know if it does need changed turn it up or down anotherwords will the new turbo make more or less than 25 psi at the old setting since its now a bigger turbo

I would guess in theory, it should stay the same if the WG bypass can handle the additional volume of the larger turbo.

As a safe guard, it would be prudent to just lower the adjustment, and see what you have. Better to be Safe than Sorry!!

Joe