Join Date: Feb 2001
Location: The Hills of North Georgia,USA
NEW TRITON V-8 POWERING ’04 F-150
LAS VEGAS – At a media dinner following a long and busy day at the annual Specialty Equipment Market Association convention here, Ford Motor Co. Powertrain Operations vice president Dave Szczupak unveiled the next-generation Ford Triton light-truck V-8 engine.
After entering stage right in dramatic fashion, driving a bright yellow 2003 Mustang Mach 1 into the room and revving its 305-hp engine for effect, Szczupak discussed Ford’s global powertrain strategy and other new and soon-to-come engines, transmissions and advanced powertrains. Then he enthused about this new 5.4-liter SOHC three-valve per cylinder Triton V-8, which will power the next generation of Ford’s best-selling F-150 pickups due next fall.
With a stiff cast-iron block, lightweight aluminum heads, magnesium cam covers and composite intake manifold, it is the latest member of Ford’s modular V-8 family (launched in the early 1990s), the first three-valve and the first to use variable cam timing (VCT). To optimize actuation of the single exhaust and twin intake valves across the rev range, VCT shifts their timing up to 50 degrees relative to the crankshaft angle, depending on engine speed and load conditions, and has the added advantage of reducing pumping losses.
Using two intake valves to increase airflow into the cylinders for improved top-end power, Ford engineers say they were able to get many benefits of a four-valve design – including a symmetrical combustion chamber and central spark plug – without the added package size, cost, weight and complexity of adding a second exhaust valve per cylinder and a second camshaft per head. The result is a best-in-class 300 hp at 5000 rpm and 365 lb-ft of torque at 3750 rpm (with 90 percent of that torque available between 2250 and 4750 rpm), improvements of 15 percent in power and five percent in peak torque vs. the 5.4-liter two-valve engine it will soon replace.
“Our new three-valve, 5.4-liter Triton engine, to be launched in our next-generation 2004 F-150 pickup, provides more of the qualities our customers love in a V-8 engine – plenty of power, with instant gratification when you push the accelerator pedal,” says Pete Dowling, Ford’s manager of Modular Engine Programs. “To this, we’ve added a new level of smoothness, quiet operation and efficiency. It’s the best of all worlds.”
Other interesting features include charge-motion control valves – which create a small, computer-designed opening for the air-fuel mixture at low speeds to induce turbulence for improved atomization and burn efficiency – and an easy-to-access air-filter element in a pullout drawer on top of the engine.
The new Triton V-8 will be produced in Ford of Canada’s two largest engine plants, which have undergone a massive three-year, $485 million expansion program for that purpose. The three-valve cylinder heads will be built by the Windsor Engine Plant and shipped to an all-new production line at the Essex Engine Plant for final assembly. Interestingly, one other major automaker making use of SOHC three-valve heads today is Mercedes-Benz.
My first car was a 67 Mustang Coupe, 2nd one was a 67 Cougar XR-7, 3rd one was a 66 Mustang Coupe. Why did I get rid of these cars for ? I know why, because I'm stupid, stupid, stupid.
My next Ford.....