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Ford FR9

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 (2009–2010)
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 (1991–2008)[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

  • 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

References

  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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