524 HP base line on lower reading Mustang dyno in terrible heat and running lower octane fuel is impressive. Mustang dyno will generally read 10% less than a Dyno Jet. Give another 25 HP for better gas and lower air temps.
A Dyno Jet with 93 octane and at a reasonable temperature is going to read 600 whp at minimum.
Apply the old 15% parasitic loss rule of thumb and you are in the neighborhood of a motor that is coming from the manufacturer around 700 flywheel HP. You are going to need this type of power to hustle a 5300 lb vehicle(weight not including driver) to 60 MPH in the 3.6 or 3.7 second range.
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