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Ford Racing Catalogue Web

ENGINE HISTORY corporation of electric power steering in place of BOSS 302 Contrary to normal engine development a separate belt-driven pump. For Mustang, The BOSS 302 engine is based on the 5.0 DOHC protocol, the first batch of durability test stainless steel welded headers are added to 4V “Ti-VCT” engine with upgraded parts. engines weren’t installed in an engine dyno. optimize power and torque, while fitting within Instead, thanks to a request from Ford Racing, the tight engine compartment. Even the Some of the BOSS-specific parts contributing they went straight to the track. dipstick was moved, to go directly through to the BOSS 302 V8’s output and durability the cylinder head, to avoid a compromising include: Ford Racing challenged the BOSS engine team exhaust-manifold runner routing. • Revised composite intake system with shorter to give them the first available BOSS 302® race. Theyengines for the January Daytona Prototype racing®runners, inspired by Daytona On the bottom end, the 4.6L crank pin was engines, for high-rpm breathing got the engines 12 weeks later, and the team shifted for more stroke, with conventional • Forged aluminum pistons and upgraded prepped five BOSS 302R cars for the January straight-thru oil hole drilling replacing the sinter-forged connecting rods for improved race. It was a fantastic opportunity to be able to 4.6L/5.4L’s complex cross-drilling. The crank’s strength, needed for the higher combustion get full-on race experience with the engine so front nose is revised for a dual-accessory belt. A pressures and engine speeds early in the program. rear-mounted stamped crank sensor wheel, • New high-strength aluminum-alloy cylinder Using race telemetry, the BOSS team has been again based on 6.2L and 3.5L, replaced the heads with fully CNC-machined ports and able to gather on-track data to help optimize front-mounted pulse wheel for a more stable chambers for exceptional high-rpm airflow engine calibrations, oil-pan designs and cooling. signal. While “Modular” from this without sacrificing low-speed torque In order to engage in virtual racing whenever manufacturing perspective, the new 5.0L would • Lightened valve train components to provide they needed, the team used the telemetry data literally recast the basic modular block design excellent dynamic performance up to speeds to re-create a hot lap at Daytona® on the dyno for internal oil and coolant routing, resulting in well above the engine redline back in Dearborn, allowing further fine-tuning. virtually no potential for component mix and • Sodium-filled exhaust valves for improved match with older modular engines. The heat dissipation Every BOSS 302 Mustang owner will benefit crankcase casting was also strengthened • Race-specification crankshaft main and from their contributions to the program. around the main bearing bulkheads, while also rod bearings for higher load capability and opening up more internal breather area around improved high-speed durability the crank for reduced pumping losses. • 5W50 full-synthetic oil with engine oil cooler Developing 412 horsepower (SAE Net) at for improved oil pressure and longer-lasting 6500 rpm, the 5.0L 2011 Mustang GT zings up lubrication during extreme racing conditions to 7000 rpm. For higher volume F-150 truck • Revised oil pan baffling for improved oil applications, the 5.0L was retuned to optimize control under racing conditions and during fuel economy and torque, with less aggressive cornering loads greater than 1.0 g intake cams, unique pistons, and cast exhaust • 2012-2013 Ford Mustang BOSS 302 engine manifolds, resulting in 360 horsepower. delivers 444 horsepower and 380 lb-ft of torque without the aid of forced induction For important information about the proper usage of performance parts, please see page 14. See pages 286-292 for important safety, emissions and warranty information. www.fordracingparts.com 91


Ford Racing Catalogue Web
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