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D16Z6:
125hp@6600
106tq@5200
The car stops making power at 6600 rpm's, There is no need to bring it over that.
Single cam ZC's are more like the D16A6.
Vtec ZC or not, you are going to blow your motor up if you keep rapping it out like that. But my answers aren't good, so I wouldn't expect you to listen to me. Just keep on trying to bring your motor to 9k...better yet, bring it to 10k. Maybe you will find the power up there.