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Message: [QUOTE="PowerstrokeJunkie, post: 277092, member: 230"] my s366 would not like life with my setup without a wastegate. The wastegate opens often, you can hear it clearly out the exhaust. I had it plumbed incorrectly when i first had it running with this setup and it threw the backpressure way off the gauge. The .91 housing is awesome for towing and response on the street but only if you are putting a wastegate with it. the stock cast 66mm inducer wheel is pretty much maxed out at this level too, i made 528 this past weekend and everyone was impressed that the stock cast wheel could keep up, it's pretty much maxed out but should get you to 550 if you're dead set on that extra ~20hp. On the dyno i still have some fuel to clean up so im kind of undecided as to what to do now, leave it the way it is, or make room for another turbo :shrug: [/QUOTE]

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