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550hp, with a 15% drivetrain lose is around 467.5rwhp. Knowing what turbo's can do that would tell you it wont take much over stock. Sport 500's, Sport 600's, Skyline replacement turbo's, TD04's so on and so on. Knowing from those with much bigger turbo's say TD05's and the 2530's ( most common ) are pushing the 550rwhp barrier on stock long blocks and more commonly stock heads. They can flow well over 550Hp. So for the cost of parts and labor for a 5 angle job, better off saving that money. When your talking heads, your talking higher RPM range, bigger a/r turbo's that do have a higher lag rating and need that bigger duration cam, more lift. The Z VG motor is far more bullet proof then most think. I think most don't want to push it or find out because of the major hassle of labor involved.
 STAGE V++++
Going to XV+ and beyond :) Yellow Z STAGE II
Going to XI+ |
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