compound setup and s400sxe...

I have the 61.44fmw compressor wheel and 68mm turbine on my commonrail as the secondary with a 595 as the primary. My truck makes 1200hp and has gone 10.70's at 130mph in the 1/4. The secondary is not a restriction in my experience. the 72 only comes in the 87mm turbine. I'd run the biggest T6 housing you can. If you want the bigger turbine wheel then go with the 76 which will get you the 96mm turbine.

Are you running an external gate & gating around the secondary into the hot pipe feeding the primary?
 
finnally 62sxe/68/12 with 475/83/1.10 ran out of fuel with my 5x016(my egt was max 1200* and max 56lbs of boost) put 300hp over on it. not more boost but egt in the sky.. but i can ajust it with AFC Live..its awesome with every $ i have put on this box!
finnaly, im waiting for some price quote to but a 480sxe/96/1.32! and install my fass 220 maybe next week...
 
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