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[QUOTE="superpsd, post: 1041070, member: 15821"] Yet you have no real world experience with a positive displacement charger on a diesel in a twin charged configuration. Or am I wrong. First of all like I said I never asked for help all I said front the start is this is what I am building and this is the way I am going about it. Next step is a free floating swing valve. This is what the Cummins kits are using. Crazy Carl uses this type of valve with a whipple over twins and he is making a pound @ idle and 85 psi maximum on a 24V 5.9. He also said once the turbos outpull the blower they pull thru the valve from atmosphere and sees no vaccum at the inlet of the atmospheric turbo. I also found that a few Mercedes diesel guys were using eatons with turbo s. One in paticular fed the blower with turbo and was seeing excessive IATs and reversed the setup to blower feeding the turbo. In fact Volvo has a marine application in which the turbo is fed by the blower with a bypass. [/QUOTE]
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