Originally Posted by
CharlieLed
5.0 L Coyote
5.0 L 4-valve Ti-VCT DOHC V8 installed in a 2012 Ford Mustang Boss 302
The 5.0 L (4951 cc, 302 cid)[9] "Coyote" V8 is the latest evolution of the Modular engine.[10] It shares the 4.6 L's 100 mm (3.937 in) bore spacing and 227 mm (8.937 in) deck height,[11] while bore diameter and stroke have increased to 92.2mm (3.629 in) and 92.7mm (3.649 in), respectively. The engine also retains the 4.6 L's 150.7 mm (5.933 in) connecting rod length, which produces a 1.62:1 rod to stroke ratio.[12] The firing order has been changed from that shared by all previous Modular V8s (1-3-7-2-6-5-4-8) to that of the Ford Flathead V8 (1-5-4-8-6-3-7-2).[12] Compression ratio is 11.0:1, and despite having typical port fuel injection (as opposed to direct injection) the engine can still be run on 87 octane gasoline.
The Coyote features a revised aluminum engine block with improved strength and crank-case ventilation, and all new 4V DOHC cylinder heads that have shifted the camshafts outboard, which allowed for a compact roller finger follower setup and improved (raised) intake port geometry. The result is an intake port that outflows the Ford GT intake port by 4 percent and the Yates D3 (NASCAR) intake port up to 0.472" (12 mm) lift, which is the maximum lift of the Coyote's intake cams.[12] The Boss 302 features versions of these cylinder heads with CNC ported intake/exhaust ports and combustion chambers, along with lightened valve-train components and lightweight sodium filled exhaust valves. The Coyote also features a forged crankshaft, powdered metal rods and hypereutectic pistons with oil jets to help piston cooling, while the Boss receives forged connecting rods, pistons and a deletion of the piston oil jets.[13] Engine redline is 7000 rpm for the GT and 7500 rpm for the Boss 302, though the Boss engine has been verified stable up to 8400 rpm. [14]
The engine is Ford's first V8 application of cam torque actuated (CTA) Twin Independent Variable Cam Timing (Ti-VCT), which allows the power-train control module (PCM) to advance and retard intake and exhaust cam timing independently of each other, providing improved power, fuel economy and reduced emissions. The engine also receives a new composite intake manifold with a single blade 80 mm (3.1 in) throttle mounted low and center, necessitating a relocation of the alternator to the side of the engine. The Boss 302 features a newer shorter-runner composite intake manifold, with the main plenum located above the intake runner entrances, to improve high-rpm horsepower. The engine is assembled in Ford's Essex Engine Plant in Windsor, Ontario, using existing Modular tooling.[15]
For the Australian Ford Falcon-based FPV GT range, the engine has been equipped with an Eaton supercharger.[16]
The 4-valve DOHC Ti-VCT 5.0 L made Ward's 10 Best Engines list for 2011.[17]
Vehicles equipped with the 32-valve DOHC Ti-VCT 5.0 L include the following:
2011 Ford Mustang GT, 412 hp (307 kW) @ 6500 rpm, 390 lb·ft (529 N·m) @ 4250 rpm
2011 Ford F150, 360 hp (268 kW) @ 5500 rpm, 380 lb·ft (515 N·m) @ 4250 rpm [18]
2011 Ford Falcon GT,[19][20] Supercharged, 449 hp (335 kW) @ 5750 rpm, 420 lb·ft (569 N·m) @ 2200-5500 rpm[16]
2012 Ford Mustang Boss 302, 444 hp (331 kW) @ 7500 rpm, 380 lb·ft (515 N·m) @ 4500 rpm [13][21]