After several months of testing, Whipple Industries is releasing new Powertrain Control Module upgrade kits for out-of-warranty MerCruiser engines—the 380-hp 8.2 Mag and the 430-hp 8.2 Mag H.O.
The package basically exchanges the stock PCM for one specially calibrated by the Fresno, Calif., company, which has specialized in automotive and marine supercharging and calibration development for more than 25 years.
"The demand has been steadily increasing over the past year for increased performance on the 8.2L lineup," said the company’s Dustin Whipple. "Mercury Marine built a tremendous platform with the latest big block, going back to the traditional bolt patterns and design, meaning many pre-existing components already fit.”
With their increased rpm limits, which increase propeller options, as well as enhanced fuel and spark curves for significant power gains throughout the rpm range, the PCM packages are available for both cable-based and digital-throttle-equipped engines. Each package also is offered with calibrations for stock exhaust manifolds, stock catalytic converters, and aftermarket headers.
Whipple said company provides two options, both of which have a flat torque curve for strong midrange power. The Stage 1 kit ($795) features gains of more than 55 hp and 15 ft./lb. of torque over the base 8.2 Mag model, and is compatible with 89-octane fuel. The Stage 2 kit ($995), which is 91-octane compatible, provides a more aggressive spark curve for far greater torque and significant acceleration improvements. The performance gains, according to testing done at Whipple Superchargers, are more than 85 hp and 50 ft./lb. of torque over the base model.
"Our stage 1 and 2 kits are officially released and we are now working on some other simple bolt-on components to further enhance the power," said Whipple. "We're very excited to also be working on the stage 3 upgrade, which is a cam and valve train upgrade that reaches even higher power levels. Our biggest offering, which will be available in April, is our 3.3-liter-based supercharger package that works with digital throttle or mechanical controls and will produce more than 650 hp on the stock engines."