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TRD Phase-14

From Wikipedia, the free encyclopedia
Reciprocating internal combustion engine
TRD Phase-14
A Phase-14 pictured in 2013
Overview
Manufacturer Toyota
Toyota Racing Development
Production2008–present
Layout
Configuration V8 engine, 90° cylinder angle[1]
Displacement 5.9L (5,870cc)[2]
Cylinder bore 106.3mm (4.2in)[3]
Piston stroke 82.55mm (3in)
Cylinder block materialCompacted graphite iron [4]
Cylinder head materialAluminum alloy[5] [6]
Valvetrain 16-valve, OHV, two-valves per cylinder
Combustion
Fuel systemElectronic Port Fuel Injection (EFI) [7]
Management MES 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 system Dry sump [10] [11]
Output
Power output 550-950+ hp (410-708 kW) @ 9,000 rpm (depending on displacement.)
Torque output Approx. 500lb⋅ft (678N⋅m) @ 5,000 rpm
Dimensions
Dry weight 525lb (238kg)
Chronology
PredecessorTRD Phase-11 (20072008)

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

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  • Engine type: Toyota V8
  • Capacity: 5.87 L (358 cuin )
  • 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

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References

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  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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