The K27 is a T3 flanged internally wastegated turbo, and the 369sxe is a T4 flanged non-gated turbo. Drive pressure is well in-check, in-fact, we limit wastegate opening on the K27 for maximum power meaning it has wastegate/exhaust flow capacity to spare.
It is the fastest spooling compound turbo setup we've ever tested and with the current bigger 5x020" injector/215 pump setup, it actually makes more power than the previous S363/S480 compound turbo combination did with the 5x016" injector/180 pump setup.
This is real dyno testing, compare these numbers to some of the other turbo testing we've done with single S300 turbos and it's clear that this combination flat-out performs!
[ame="http://www.youtube.com/watch?v=LpG6drdBh8A"]http://www.youtube.com/watch?v=LpG6drdBh8A[/ame]
