Quote:
Originally Posted by Averying
This might be due to the fact that Topgunz kit can use a smaller pulley to get boost down low, then bleed off extra boost at high RPM. Z1 kit has a normal Turbosmart BOV so it can’t do that
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I guess I'm reviving this thread.
I was under the impression that a smaller pulley creates higher top end power but less low end torque.