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Published on Jul 29, 2010
Stock (Factory Rated Flywheel Power): 520 HP SAE @ 8,000 rpm 376 ft lb @ 4,250 rpm
The Heffner Twin Turbo system primary components consist of: - (2) Ball Bearing "Precision Turbo" Turbochargers - Air/Water intercooler, intercooler pump, and front mounted heat exchanger - Running a "modest" boost level of 6 psi, and 91 octane pump gas running through its veins.
Dyno Measured Results @ the Wheels: 592 Wheel HP @ 7800 RPM 450 Wheel TQ @ 4700 RPM
What is the VERDICT? Let's convert from Wheel HP to Flywheel HP: our powertrain loss on our dyno is 35% for an AWD Lamborghini Gallardo:
592whp X 1.35 = 798.4 flywheel HP 450wtq X 1.35 = 607.5 flywheel TQ
Considering our "Fruit Punch" Arizona blend 91 octane fuel, we would say that Heffner was right on with their 800 HP "bolt-on" kit!