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My theory on the dip is acoustics. We haven't heard of any variable intake configuration so I think this is a pipe (exhaust and/or intake length) induced 'flat-spot' like on bikes.
Reason being is for the sizing to flatten out the curve as much as it does on either side of a more natural inertial torque peak of ~4800 rpm, there will be neg(intake) or positive (exhaust) waves that had to be accepted as a compromise.
A header and AVCS tuning can probably 'fix' this, likely by moving the torque/power curve up the rev range, but naturally sacrificing the low.
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Because titanium. |