Ah ok. Well on my setup I was still running a 2.0L with MS. I have a fully ported race head with Crane 014 cams.

At 3500 I had 17lbs of boost and peaked 25psi at 3800. Boost would ramp up very linear with my manifold. If i recall the star turbo would start boosting at 2600 and when I switched to the GT30R the RPM dropped a few hundred. With a 2.4L your going to boost a little sooner due to the added exhaust flow.

I am going by memory here so if i am off a hundred RPM, dont fault me for it. I never ran this turbo with a log manifold setup so I cant comment how that would react.