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Message: [QUOTE="madpowerstroke, post: 703976, member: 5867"] The new stage 4 once I get the wheels are going to flow more air but 290cc will be too big for full fuel. As far as waste gate I don't think it will need it, Shawn has nail the spray to one of the turbo with no waste gate and took it just fine (863rwhp on spray with 205/100). I do have a wheel being made that will be the biggest VGT turbo when I finish it. A stage 5, and carry the biggest turbine wheel I can stuff into the turbine housing. I belive that that turbo should clean 250cc at full fuel, and est. calulations have put it at over 800rwhp fuel only. I also believe that the 6.0 powerstroke won't be able to handle any more than that turbo. I found the problem with the loss of ICP pressure. If the truck is not started and left for 3 days the oil will leak off the other pump and cause a air bubble. One you start the truck you must then crack the oil line coming out of the pump going to the stock pump to bleed the air out of it. Once that is done you will then have the 4.8 volts of ICP at WOT. After I fixed the ICP at WOT I was at 1750 EGT, now with the proper pressure I can only hit 1540 at WOT. One problem down, next is the tuning to get the turbo to build with brake. Once that is accomplished it's changing shift points for the tranny to hit 5th faster. I also noticed that the truck is falling at 90 mph a little, so depending on what the tuning does I might have to which out the injectors for 225/100, just more tweeking to get this combo right. [/QUOTE]

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