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Message: [QUOTE="superpsd, post: 1340560, member: 15821"] Idle 2 psi. In neutral it builds boost linearly to 12 psi @ 3200 rpm. That basically just what theblower is putting out as I have pressure gauges to monitor pre and post turbo. Cruising around low load low throttle input it's usually 5-8 psi manifold. For example cruising at 2000 rpms down the freeway in 5th gear @ 70mph it shows like 6 - 7 psi manifold pressure. Once the turbo spools up it pulls air faster than the blower can push it and it pulls a one way flapper valve and pulls from a second air filter. As soon as you lift the valve slams shut and pre turbo pressure returns instantly. When the valve is open and the turbo is spooled up there is a 0 pressure differential from the inlet to the outlet of the blower which leaves the blower simply in a bypass mode. The only power it is robbing at that point is the belt having to rotate the weight of the rotors. The blower is only currently spun to almost 10,000 rpm @3400 rpm. The blower red line is 19,000. The TVS actually has a capability to flow 1400 cfm. However at 10,000 rpm it is only capable of flowing like 700-800 cfm. [/QUOTE]

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