Journal bearings aren't really the problem, that hardly effects the spool on small/mid turbos. The 20g are pretty large, and capable of over 900rwhp... That's probably where the extra lag is coming from. However, I would NOT call it laggy at all. Just driving spirited around town they spin right the hell up sometimes easier than I really wanted the power to come on. Part throttling around you can consistently feel them pushing air and increasing power before even going into positive manifold pressure. In terms of full throttle, both setups are well into full boost below racing rpms.
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