05-29-2013, 02:20 PM
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#19 (permalink)
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A True Z Fanatic
Join Date: Nov 2011
Location: Houston
Posts: 12,265
Drives: 2011 370ztt
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Quote:
Originally Posted by BigT
Ball bearing doesn't have a huge affect on initial spool. Transient response and turbo life is where BB shines.
Spool has more to do with turbine housing and wheel size. Have you seen how tiny MHI turbine housings are for 16g's and 20g's?
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If by initial spool you mean boost threshold, you're correct. A 20g isn't really that small, although I haven't looked at the specific flavor of wheel they're using. The Greddy kit uses 20gs as well, and people haven't seemed to complain about boost tapering to redline.
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