2NZ-FE Supercharged Limits

[iwanttobeamole]

Hi all,
Evidently I'm new here. I'm also a new owner of a (not new) Yaris which has a 2nz-fe and a JIMZE supercharger kit.

I have a question for all the tech heads and boost boffins out there.

Preamble
On the assumption (and I could be wrong) that the 1nz and 2nz engines are identical (components) but for crank, stoke length, and block length, (so same rods and pistons etc) and the undestanding that the accepted safe limit to the 1nz-fe is ~150whp, here is my question.

The Question
Would a 2nz making more boost so as to make say 130whp, be as reliable as a 1nz making less boost, so as to also make 130whp..

Postamble
Now I know there's overhead on the engine load to run a supercharger, and one that's been overdriven will put more load on the engine still, but lets assume I'm aiming for 130whp, so as to stay well within the engine's understood safe limit of 150whp

Notes
A little background in case anyone wonders. Car is a 2000 Vitz/Yaris (we had them both here in New Zealand) 2nz-fe Manual.