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Sunday, November 11, 2007
Deserving of More Grunt
That is partly homage to the calibration done to Ford’s 4.6-liter V-8 for the Bullitt, boosting it to 315 horsepower at 6000 rpm and 325 pound-feet of torque at 4250 rpm, says Derrick Kuzak, group vice-president of global product development. That is up from 300 horsepower and 320 pound-feet of torque in the Mustang GT, and within four horsepower of the more expensive Shelby GT. Ford says the redline has been boosted to 6500 rpm, an increase of 500. Power is directed via a five-speed manual transmission, with a custom-made, polished-aluminum shift ball. All the better to ram a Dodge Charger with.
Cam timing was revised; engineers went so far as to try to match the exhaust note to that of the Mustang in the film, and the rear springs were lowered to reduce the ride height—presumably most customers won’t become airborne while in hot pursuit.
It is Ford’s first car to receive a factory-made version of Ford Racing’s cold-air induction system, and the hoodliner was modified to make room behind the driver’s-side headlight for the airbox housing the intake. A new adaptive spark ignition was also designed to improve engine performance by improving torque as much as 10 pound-feet, Ford says, as the car can run on regular or premium fuel and the system adjusts the spark accordingly.
The chassis and the suspension were tweaked. The Bullitt borrows Ford Racing’s taller 3.73:1 limited-slip rear axle from the Shelby GT500 and swaps in new shocks and struts to better endure tears through the streets of San Francisco. A strut-tower brace was designed specifically for this limited-edition Mustang to increase stiffness. Handling is also aided by a 50/50 weight distribution.
Engineers say the changes should improve 0-to-60-mph times by 0.3 second, to the high-four-second range. Lt. Frank Bullitt would be pleased.
That is partly homage to the calibration done to Ford’s 4.6-liter V-8 for the Bullitt, boosting it to 315 horsepower at 6000 rpm and 325 pound-feet of torque at 4250 rpm, says Derrick Kuzak, group vice-president of global product development. That is up from 300 horsepower and 320 pound-feet of torque in the Mustang GT, and within four horsepower of the more expensive Shelby GT. Ford says the redline has been boosted to 6500 rpm, an increase of 500. Power is directed via a five-speed manual transmission, with a custom-made, polished-aluminum shift ball. All the better to ram a Dodge Charger with.
Cam timing was revised; engineers went so far as to try to match the exhaust note to that of the Mustang in the film, and the rear springs were lowered to reduce the ride height—presumably most customers won’t become airborne while in hot pursuit.
It is Ford’s first car to receive a factory-made version of Ford Racing’s cold-air induction system, and the hoodliner was modified to make room behind the driver’s-side headlight for the airbox housing the intake. A new adaptive spark ignition was also designed to improve engine performance by improving torque as much as 10 pound-feet, Ford says, as the car can run on regular or premium fuel and the system adjusts the spark accordingly.
The chassis and the suspension were tweaked. The Bullitt borrows Ford Racing’s taller 3.73:1 limited-slip rear axle from the Shelby GT500 and swaps in new shocks and struts to better endure tears through the streets of San Francisco. A strut-tower brace was designed specifically for this limited-edition Mustang to increase stiffness. Handling is also aided by a 50/50 weight distribution.
Engineers say the changes should improve 0-to-60-mph times by 0.3 second, to the high-four-second range. Lt. Frank Bullitt would be pleased.
Labels: Automobiles Reviews
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