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Old 08-17-2014, 11:38 AM   #10 (permalink)
ksa8907
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It looks like you get peak torque at 4100 rpm, and from the jumpiness of the torque below 4k im going to assume the engine has variable intake runners. From what I have seen, most engines achieve their best bsfc (brake specific fuel consumption), while operating below peak torque and not within 200rpm of peak torque. For your engine that would be 3100 - 3900rpm.
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