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Old 01-24-2021, 08:22 PM   #1 (permalink)
Eco Rodder
Join Date: Nov 2014
Location: Walnut Creek, CA
Posts: 59
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Cruise RPM on the torque curve

Where is the best RPM for fuel economy on the torque curve?
Is it near peak torque? More? Less?
Does it vary by engine design/size?
And why?

1966 Chevelle w/ 3.6L (217 ci) 4 cam direct injected V6, 6 speed double OD auto trans and 3.07 rear end. 3260 lbs with full tank of gas.
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