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After an addition of headers and elimination of the CC on my exhaust, I thought I'd recheck the power on my rebuilt 2.5L motor. BIG gain in torque, which didn't surprise me as the midrange felt considerably better.
But the real benefit was noticing the dip in power at 3500rpm - I'd just assumed that was how the motor felt at lower rpm but the graph indicates that there must be an issue with the AFM (probably due to the engine usually operating at that rpm, so perhaps a flap or something gets hung up in the AFM at that rpm).
Ordered a rebuilt unit and will install when it arrives next week. (Note the solid lines indicate the dyno results before adding the headers and eliminating the CC, the dotted lines are after. Pretty big difference).
But the real benefit was noticing the dip in power at 3500rpm - I'd just assumed that was how the motor felt at lower rpm but the graph indicates that there must be an issue with the AFM (probably due to the engine usually operating at that rpm, so perhaps a flap or something gets hung up in the AFM at that rpm).
Ordered a rebuilt unit and will install when it arrives next week. (Note the solid lines indicate the dyno results before adding the headers and eliminating the CC, the dotted lines are after. Pretty big difference).
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