Yup, only about 75hp. Just because the manifold is crap.
(If you can't breathe right, you won't be running very fast either. :lol
(A picture of a GZE intake manifold i borrowd from a other forum, to show the problem
You can correct it: Build you're own better flowing intake. But I wish you
good luck with that. That Supercharger takes up a lot of space
There are a few people who have already tried it, but it's a bit more tricky than it might seem. A lot of them had issues with idle rpm's.
But why bother. If you're happy with the GZE as it runs stock. You won't notice those 75hp. When you need power and put you're foot down. The ECU engages the clutch of the Sc and bam, 165hp (depending on the generation GZE) is at you're disposal and the torque is there right away.
On the Supercharger cars there is a light on the dashboard that lets you know when the Sc is engaged. Very neet little item
The Supercharger is only disengaged when those 75 pony's can cope. When you're rolling along on the freeway, those 75 pony's is all you need.
So there is room for improvement yes, but remember that the engine is still very powerfull and good enough for most people.
I'm not going to bother with it. Even with that crappy intake, it will suit my needs just fine :thumbsup: