TRD Phase-14

TRD Phase-14
A Phase-14 pictured in 2013
Overview
ManufacturerToyota
Toyota Racing Development
Production2008–present
Layout
ConfigurationV8 engine, 90° cylinder angle[1]
Displacement5.9 L (5,870 cc)[2]
Cylinder bore106.3 mm (4.2 in)[3]
Piston stroke82.55 mm (3 in)
Cylinder block materialCompacted graphite iron[4]
Cylinder head materialAluminum alloy[5][6]
Valvetrain16-valve, OHV, two-valves per cylinder
Combustion
Fuel systemElectronic Port Fuel Injection (EFI)[7]
ManagementMES TAG-400i[8]
Fuel type260 GTX Unleaded provided by Sunoco (2008–2010; still in use in ARCA)
E15 Ethanol provided by Sunoco (2011–present)[9]
Oil systemDry sump[10][11]
Output
Power output550-950+ hp (410-708 kW) @ 9,000 rpm (depending on displacement.)
Torque outputApprox. 500 lb⋅ft (678 N⋅m) @ 5,000 rpm
Dimensions
Dry weight525 lb (238 kg)
Chronology
PredecessorTRD Phase-11 (2007–2008)

The TRD Phase-14 engine is a 5.87-liter, naturally aspirated, V8 racing engine, developed and produced by Toyota with their Toyota Racing Development department for competition in NASCAR; starting in 2008.[12] Across the top 2 series they supply engines to 4 teams, including Joe Gibbs Racing, 23XI Racing, Legacy Motor Club, and Sam Hunt Racing.

Specifications

  • Engine type: Toyota 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: 525 lbs. (238 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 (2008–2010; still in use in ARCA)
    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. ↑ "516 WHP NASCAR V8 POWERS THIS TC TO THE PODIUM". DSport Magazine. Retrieved August 3, 2026.
  2. ↑ "Toyota CNC — TRD NASCAR". Arrington Speed Sport. Retrieved August 3, 2026.
  3. ↑ "Chevy Nascar Engine - Nascar's New Chevy". HOT ROD Network. Retrieved August 3, 2026.
  4. ↑ "Exotic Materials in NASCAR Engines?". Building Speed. Retrieved August 3, 2026.
  5. ↑ "4.500˝ Bore Space ROX Small Block Chevy". Engine Builder Magazine. Retrieved August 3, 2026.
  6. ↑ "Pontiac's Proposed Aluminum V8 Cylinder Head for NASCAR Racing". HOT ROD Network. Retrieved August 3, 2026.
  7. ↑ "TRD Phase 14 Race Engine". My105. Retrieved August 3, 2026.
  8. ↑ "The Power Inside NASCAR® Fuel Injection" (PDF). DXP. Retrieved August 3, 2026.
  9. ↑ "Sunoco Fueled for 15: Celebrating 15 Years of Fueling Victories". NASCAR. Retrieved August 3, 2026.
  10. ↑ "NASCAR Next Gen race car debuts, brings the sport into the 21st century". Motor Authority. Retrieved August 3, 2026.
  11. ↑ "Phase 14 Triad Racing Technologies TRD Toyota NASCAR Truck Series Engine". NASCAR Race Used. Retrieved August 3, 2026.
  12. ↑ "TRD has found home, success in California". NASCAR. Retrieved August 3, 2026.
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