Originally Posted by
J1mbo
I think you've mis understood me mark Im talking solely about surge, this was four years ago

Your spec may well be fine for you but if I came to you as a customer with a built car wanting an engine to rev to over 8500 would you have chooses a gt35? As I don't personally think the cams needed to achieve the power at those rpms allow a gt35 to work well.
I would choose a BW turbo over just about any Garrett turbo.
Mark