Quote Originally Posted by HiPSI
that's because a lot of people size their turbos for a certain peak number rather than a usable power range. smaller turbos tend to hit hard and fall off up top, but if you get the sizing just right and run a good wastegate setup it makes all the difference in the world.

looks like a hell of a setup, i want to see this thing in person some time.
My turbo's are rated at 650hp each. I am almost there!I am just glad I havn't had to turn up the boost anymore yet. And to think my original goal with the car was only 800rwhp!!You are correct about turbo sizing.To big and it make's power late and to small ,they come on quick and die out on the big end.Mine seem to be pretty close to the correct size.