Whats stock boost for S13 S14 SR20DET

[slidingsky]

S13 red and black top & S14 SRs are rated at 7psi
The Avenir (silvertop/no paint VC) is rated at 7psi as well
The GTiR is rated at 10psi

[UNISA JECS]

Originally Posted by slidingsky

S13 red and black top & S14 SRs are rated at 7psi
The Avenir (silvertop/no paint VC) is rated at 7psi as well
The GTiR is rated at 10psi

If you are speaking in terms of stock wastegate rating we know that (except for the GTi-R I didn't know that)

But we wanna know what the stock boost is from the factory, if you say its 7psi that doesn;t make much sense because what would be the purpose of the factory boost solenoid

For example:

U12 Bluebird rated at ~207ps journal T25g

U13 Bluebird rated at

W10 Avenir rated at 230ps journal T25g

W11 Avenir rated at 230ps ball bearing 25g

RNN14 GTi-R rated at 230ps journal T28

I imagine none of these boost 7psi from the factory, what would be the purpose of a boost solenoid then.?