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Old 04-14-2012, 04:38 PM   #21 (permalink)
APU
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Join Date: Apr 2012
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During high torque demand, accelerating tow vehicle, uphill and passing, the auxiliary engine would run providing boost to the engine. My target is 6 psi, this should provide approximately 33% more torque. The auxiliary engine would be shut down during highway cruise and only restarted when required. The majority of the time the main engine would be run naturally aspirated. Would running the auxiliary engine during cruise, with taller overall gearing lowering rpm, increase or decrease the main engines fuel consumption ?

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