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Ford FR9

From Wikipedia, the free encyclopedia
Ford FR9
A FR9 on display at the NASCAR Hall of Fame in 2021
Overview
ManufacturerFord
Roush-Yates Engines
Production2009–present
Layout
ConfigurationV8 engine, 90° cylinder angle[1]
Displacement5.9 L (5,870 cc)[2]
Cylinder bore106.172 mm (4.2 in)[3]
Piston stroke82.80 mm (3 in)[4]
Cylinder block materialCompacted graphite iron[5]
Cylinder head materialAluminum alloy[6]
Valvetrain16-valve, OHV, two-valves per cylinder
Combustion
Fuel systemElectronic Port Fuel Injection (EFI) (NASCAR Cup Series)
Carburetor (NASCAR O'Reilly Auto Parts Series)[7]
ManagementMES TAG-400i[8]
Fuel type260 GTX Unleaded provided by Sunoco (20092010)
E15 Ethanol provided by Sunoco (2011–present)[9]
Oil systemDry sump[10]
Output
Power output550-950+ hp (410-708 kW) @ 9,000 rpm (depending on displacement.)
Torque outputApprox. 510 lb⋅ft (691 N⋅m) @ 4,900 rpm
Dimensions
Dry weight500 lb (227 kg)[11]
Chronology
Predecessor351 Windsor Small Block (19912008)[12][13]

The Ford FR9 engine is a 5.87-liter, naturally aspirated, V8 racing engine, developed and produced by Ford Motor Company alongside Roush-Yates Engines for competition in NASCAR; starting in 2009. It was Ford's first purpose-built motor produced for oval track racing. The motor is still used today across NASCAR's top 2 divisions by a variety of teams including Penske Racing, Wood Brothers Racing, RFK Racing, Front Row Motorsports, and Hettinger Racing.

Specifications

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  • Engine type: Ford V8
  • Capacity: 5.87 L (358 cu in)
  • HP rating (superspeedway / intermediate / dirt / road-street course / short tracks): 670 hp (500 kW) / 750 hp (559 kW) (2026 rules package)
  • Max. RPM: 10,500 rpm
  • Weight: 500 lbs. (227 kg)
  • Oil system: Dry-sump lubrication
  • Camshafts: Solid-roller camshaft
  • Valve actuation: Shaft-mounted
  • Valve springs: Wire-type
  • Cylinder head: 2 valves (titanium) per cylinder
  • Fuel injection: MES/NXP Semiconductors/Holley/Bosch 8x high pressure port injectors
  • Fuel: 260 GTX Unleaded provided by Sunoco (2009–2010)
    E15 Ethanol provided by Sunoco (2011–present)
  • Lubricants: 0w grade; Mobil 1 Extended Performance (ESP), Pennzoil Platinum, Valvoline Advanced Protection
  • Block material: Compacted graphite iron
  • Head material: Aluminum alloy
  • Crankshaft: Billet steel
  • Con rods: Forged steel
  • Pistons: Forged aluminum alloy
  • Intake systems: Single plenum - aluminum
  • Electronic control unit: McLaren Electronics - TAG-400I
  • Engine service life: 1,000 miles
  • Gearbox: Sequential gearbox, h-pattern

Applications

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References

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  1. "FR9: Ford's Historic New NASCAR Small Block". Retrieved July 31, 2026.
  2. "Roush Yates NASCAR V8 Crate Engine - Ultimate Crate". MotorTrend. Retrieved July 31, 2026.
  3. "We may have lost Robert Yates to cancer, but his memory lives on in engines like the Ford FR9 EFI V8, which was purpose-built by Roush Yates Engines for Monster Energy NASCAR Cup teams. Find out what went into making this 800 hp powerplant". Engine Builder Magazine. Retrieved July 31, 2026.
  4. "FORD FR9 EFI V8". Roush-Yates Engines. Retrieved July 31, 2026.
  5. "Video: Discussing Ford C3, D3, And FR9 Engines With Roush-Yates". EngineLabs. Retrieved July 31, 2026.
  6. "Ford Performance Parts FR9 NASCAR Cylinder Heads M-6049-E1". Summit Racing. Retrieved July 31, 2026.
  7. "NASCAR FORD FR9 ENGINE" (PDF). Atlas Copco. Retrieved July 31, 2026.
  8. "The Power Inside NASCAR® Fuel Injection" (PDF). DXP. Retrieved July 31, 2026.
  9. "Sunoco Fueled for 15: Celebrating 15 Years of Fueling Victories". NASCAR. Retrieved July 31, 2026.
  10. "NASCAR Next Gen race car debuts, brings the sport into the 21st century". Motor Authority. Retrieved July 31, 2026.
  11. "KURT BUSCH'S FORD ENGINE". State Water Heaters. Retrieved July 31, 2026.
  12. "NASCAR Sprint Cup Engine - Ford's Sprint Car Resurgence - Open Wheel". HOT ROD Network. Retrieved July 31, 2026.
  13. "NASCAR Race Engines - Arms Race". HOT ROD Network. Retrieved July 31, 2026.
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