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#21 | |
![]() ![]() Drives: 09 Yaris hatch, 09 Z51 'Vette Join Date: Oct 2008
Location: RI
Posts: 100
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Quote:
Peak power (106 HP @ the flywheel) occurs at 6,000 RPM - just like Toyota says it does. Peak power will be less when measured on a chassis dyno, though the RPM at which it occurs will be identical. That says little about determining shift points for optimal acceleration, though, as explained here: http://www.allpar.com/eek/hp-vs-torque.html Generally speaking, one wants to shift at engine red-line (ABOVE PEAK HP RPM) in order to maximize acceleration. That's particularly true with "peaky," small displacement, DOHC engines (e.g. Yaris 1.5 liter). |
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