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Re: Waste gate
Posted by BobS (more from BobS) on Fri, 16 Jul 2004 10:52:39
In Reply to: Re: what do youo mean by spoolup? n/m, Dean, Fri, 16 Jul 2004 04:41:09
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The waste gate remains closed except when the ECU attempts to limit torque steer, excessive drive train load, or engine stress. The first 2 cases are covered by boost limit at low vehicle speeds - gears, which is a "spoolup" issue. T5Boost4 does increase boost under these condtions while allowing boost control. If the waste is held closed artifically things like excessive knock and turbo overspeed can occur. It would be very informative to record what the waste gate is doing and how the ECU is attempting to control it.
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