Volvo Penta aqad41 power issues

[Troy]

Hi all,
I have taken my Zodiac Hurricane for its first run and it was great. There seems to be an issue coming up to speed, it's idling nicely but once you advance the throttle it doesn't want to launch the vessel out of the water quickly enough. Once i am up on the plane it runs nicely but struggles up to higher speed until higher revs when the turbo obviously kicks in.
I would say that the turbo doesn't kick in until about 25 Kts, topping out at 32Kts.
Any thoughts???

[Searider]

What RPM would you say the turbo comes in?

[Troy]

No tacho at the moment....no functioning gauges at all actually, they are being being replaced in two weeks. I would say that the turbo kicks at about the 80% throttle mark AFTER it is on the plane