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Old 11-17-2011, 10:28 PM   #66 (permalink)
Master EcoModder
Join Date: Mar 2008
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I agree with your last comment on friction too but bearing friction is small compared to ring friction and valvetrain friction is independent of engine load. Until recently though it was typical that the bsfc curve tended to correlate well with the torque curve. Newer engines with VVT have changed that somewhat.
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