03-12-2020, 10:03 PM
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#34 (permalink)
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A True Z Fanatic
Join Date: Jun 2014
Location: Ga
Posts: 13,979
Drives: 2013 Nismo 370z
Rep Power: 2684392
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Quote:
Originally Posted by ZoomZ
My understanding of NORTH AMERICA octane rating or AKI:
1). 87 octane and 94 octane have the same burn ENERGY. Meaning, you are not magically gaining HP or saving fuel. They have the same amount of stored energy.
3). The 370z ECU is smart enough to figure all this out if it gets a signal from the Knock sensor (not sure if its smart enough to understand the severity of the ping) and adjust timing accordingly.
Please correct me if I'm wrong.
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OK, no you don't gain more HP by running 93 oct via the fuel. You get the extra HP because the ECU will run more timing in the motor. More power and better fuel economy is the result.
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