I've mentioned all else equal, to keep the idea focused on cylinder pressure. B/C of the extra hp capabilities, more head bolts were needed on a stage II but it's the hp made and not the boost level that dictates this.
I'm not saying that at all; sorry you misunderstood. Additional boost makes more air get past the valves but an additional 10psi on a small turbo unopened engine moves a LOT less additional air than a stage II engine with an additional 10psi from a large turbo. The extra 10psi stays the same but the stage II 10psi jump will increase cylinder pressure and hg stress WAY more than than same 10psi additional on a 109 engine. This is why unopened engines aren't too bad to run at 30psi if you can keep the intake temp down and detonation at bay; the hg's will hold up just fine as again; hg stress is caused by hp, not boost level specifically. This is what I'm stating that you keep running around.
No, I never stated that was the case. I stated that 500hp on a 10psi stage II @ 5000rpm will have similar cylinder pressure and hg stress as a 109 with 30psi also making 500hp @ 5000rpm.
