supercharging the northstar

frank markus

BEHOLD CADILLAC'S first production supercharged engine. Its official SAE-certified horsepower rating of 469 is the highest for any factory Cadillac, including all the jumbo-block SAE-gross-rated behemoths of the 1960s and early 1970s. Making power is all about getting air into cylinders. This can be done the Corvette Z06 way, using great big lungs, or by forcing air in with a blower. Cadillac reckoned the latter approach had a better chance of delivering the refinement and smooth idle demanded of a $77,090 car. Air enters through an 80mm throttle body, flows around back of the engine and into the valley, where it's sucked up into the largest production Roots blow-er going. Spinning at 21 times crank speed, the air is pressurized to 12 psi before flowing up through a Laminova intercooler (water…

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MotorTrend (Digital) - 1 Issue, January 2006

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