Boost pressure for stock N55 and Dinan stage 2?

[BlackJackel]

I have been trying to find this out. Can't seem to get a definite answer.
There should be info somewhere??

Not looking for guesses, please. I know threads have said tuners can't get the turbo settings directly because of the way the engine is built (& the one I have used said the same thing). I am curious because I have had a turbo bike and and can see the direct relation of increases in boost to power (used a NLR gear based boost controller) and just want know where my 55HP came from.
You can see it clear as day on my former turbo bike's dyno charts

Since it is well established that BMW "cheats" in our favor in giving us MORE power than they claim, I just want to know:

What is the real, sea level, crank HP/TQ of the N55 in my X1 (wheel is not as valuable, as AWD and RWD are obviously different) and what peak boost is it hitting for the max outputs?

What does the Dinan stage 2 do to the same questions?

I know there are people on here who must know the answer (reliable know sources are ok by me)

Thank you all.

(P.S. if my maths are right, after "conversion" of my dyno sheet, my results equaled about 348HP/425TQ with the stage 2)

[nospam]

http://www.n54tech.com/

[BlackJackel]

Thanks no spam!

I still can't find any direct "this is it" evidence, but a clearly respected tuner said 9.5-11 psi peak stock for the N55 (and ~18 psi is the max output for the turbo itself.)
Still don't know how much boost the Dinan stage 2 gives it...
I couldn't get a before dyno to compare the power under the curve or peak numbers on mine. I am only guessing modded peak psi is over the 13.5 psi of a JB1.
Oh well, can't complain. It appears to be in the ballpark of their claims.
Mainly just curious. I am not planning to do any "non warrentied" mods for years, if ever, to the X1.

I will consider this done, unless someone else chimes in.
Thanks again for the link.

[wantm135i]

ok whats the boost for jba stage 2