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Honda D engine

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The Honda D engine is used in a variety of compact Honda models, most commonly the Honda Civic, but also used in the Integra, Logo, CRX, Stream and others. Displacement ranges between 1.2 L and 1.7 L, and the engine is available in SOHC and DOHC versions. Some SOHC models are VTEC. Power range started from 62 hp (currently the smallest engine uses a 1.4 L 90 hp engine, code D14A4) to 135 hp. It was introduced in 1986 and ended production in 2005 with the introduction of the 8th generation Honda Civic.

Hot-rodding the D series

Although the availability of used D-series engines at low prices makes it somewhat popular among those who modify it for high performance (as well as a popular item for swapping into earlier or less powerful Civics for an instant and trouble free power upgrade), the unmodified engine won't survive quite as much power enhancement by use of such external modifications as turbochargers, superchargers, or nitrous oxide as the more powerful, somewhat more robust, and much more expensive B-series; the Achilles heel of the D-series seems to be the connecting rods, which will withstand a substantial and noticeable increase in power up to a certain point, but will break if that limit is exceeded. Generally, a D-series motor can handle up to about 200 bhp. Of course, the connecting rods and other internal parts can be replaced with more durable aftermarket parts which will survive almost any amount of power desired, but some people choose to swap to a B-series motor instead in order to avoid the potential risks of engine building. In all practicality though, the B series is much more expensive to swap in than most D-series engine builds and forced induction or nitrous combined. The D-series also has the ability to swap some parts between different motors and among some B-series parts as well.

Mini-Me

One of the most popular and effective methods of achieving greater power from a D-series motor is replacing the cylinder head with one from a more powerful D-series motor. This is usually done between D16A6 and D16Z6 or D16Y7 and D16Y8 engines. The Z6 and Y8 heads are VTEC (Variable Valve Timing and Lift Electronic Control) equipped, and increase horsepower significantly over stock levels. This operation is known as a "Mini Me" or partial swap. Mini Me's are popular because they offer a substantial performance upgrade, as well as introducing VTEC, to the motor at a relatively low cost.

Engine Specs

D15 Series Engines (1.5 Liters)

D15A2

  • Found in:
    • 1984-1987 Honda CRX HF
      • Displacement : 1488 cm3
      • Compression : 9.6:1
      • Power : 58 hp @ 4500 rpm & 80 ft·lbf @ 2500 rpm
      • Valvetrain : SOHC
      • Fuel Control : carbureted

D15A3

  • Found in:
    • 1984-1987 Honda CRX Si
      • Displacement :
      • Compression :
      • Power :
      • Valvetrain :
      • Fuel Control : Fuel Injected

D15B

  • VTEC
  • Found in:
    • 1991-1999 Honda Civic VTi EG4
      • Displacement : 1493 cm3
      • Bore and Stroke : 75 mm X 84.5 mm
      • Compression : 9.6:1
      • Power : 130 hp @ 6800 rpm & 102 ft·lbf @ 5200 rpm
      • Valvetrain : SOHC VTEC
      • Fuel Control : OBD-1 MPFI
  • 3-stage VTEC
  • Found in:
    • 1991-1999 Honda Civic VTi EG4
      • Displacement : 1493 cm3
      • Bore and Stroke : 75 mm X 84.5 mm
      • Compression : 9.6:1
      • Power : 130 hp @ 6800 rpm & 102 ft·lbf @ 5200 rpm
      • Valvetrain : SOHC VTEC
      • Fuel Control : OBD-2 MPFI

D15B1

(essentially a D15B2 engine with a mild camshaft)

  • Found in:
    • 1988-1991 Honda Civic STD hatchback si
      • Displacement : 1493 cm3
      • Bore and stroke : 75 mm X 84.5 mm
      • Compression : 9.2:1
      • Power : 70 hp @ 5500 rpm & 83 ft.lbs @ 3000 rpm
      • Valvetrain : SOHC
      • Fuel Control : OBD-O DPFI

D15B2

  • Found in:
    • 1988-1991 Honda Civic DX/LX, CRX DX, Civic Wagon DX/Wagovan
      • Displacement : 1493 cm3
      • Bore and Stroke : 75 mm X 84.5 mm
      • Compression : 9.2:1
      • Power : 92 hp @ 6000 rpm & 89 ft·lbf @ 4500 rpm
      • Valvetrain : SOHC
      • Fuel Control : OBD-0 DPFI

D15B6

  • Found in:
    • 1988-1991 Honda Civic HF, CRX HF
      • Displacement : 1493 cm3
      • Bore and Stroke : 75 mm X 84.5 mm
      • Compression : 9.1:1
      • Power : 62 hp(88-89) 70 hp(90-91)@ 4500 & 83 ft·lbf @ 3000 rpm
      • Valvetrain : SOHC
      • Fuel Control : OBD-0 MPFI

D15B7

  • Found in:
    • 1992-1995 Honda Civic DX/LX
      • Displacement : 1493 cm3
      • Bore and Stroke : 75 mm X 84.5 mm
      • Compression : 9.2:1
      • Power : 102 hp @ 5900 rpm & 98 ft·lbf @ 5000 rpm
      • Valvetrain : SOHC
      • Fuel Control : OBD-1 MPFI

D15B8

  • Found in:
    • 1992-1995 Honda Civic CX
      • Displacement : 1493 cm3
      • Bore and Stroke : 75 mm X 84.5 mm
      • Compression : 9.1:1
      • Power : 70 hp @ 4500 rpm & 83 ft·lbf @ 3000 rpm
      • Valvetrain : SOHC
      • Fuel Control : OBD-1 MPFI

D15Z1

  • VTEC-E
  • Found in:
    • 1992-1995 Honda Civic VX
      • Displacement : 1493 cm3
      • Bore and Stroke : 75 mm X 84.5 mm
      • Compression : 9.3:1
      • Power : 92 hp @ 5500 rpm & 97 ft·lbf @ 4500 rpm
      • VTEC Switchover : 2500 rpm
      • Valvetrain : SOHC VTEC-E
      • Fuel Control : OBD-1 MPFI

D16 Series Engines (1.6 Liters)

D16A1

  • Found in:
    • 1986-87 Acura Integra
      • Displacement : 1590 cm3
      • Bore and Stroke : 75 mm X 90 mm
      • Compression : 9.3:1
      • Power : 113 hp @ 6250 rpm & 99 ft·lbf @ 5500 rpm
      • Valvetrain : DOHC
      • Fuel Control : OBD-0 MPFI

D16A3

  • Found in:
    • 1988-89 Acura Integra
      • Displacement : 1590 cm3
      • Bore and Stroke : 75 mm X 90 mm
      • Compression : 9.5:1
      • Power : 118 hp @ 6500 rpm & 103 ft·lbf @ 5500 rpm
      • Valvetrain : DOHC
      • Fuel Control : OBD-0 MPFI

D16A6

  • Found in:
    • 1988-1991 Honda Civic Si, CRX Si, Civic Wagon RT4WD
    • 1988-1995 Honda Civic Shuttle RT4WD (UK/Europe/Asia/AU/NZ)
      • Displacement : 1590 cm3
      • Bore and Stroke : 75 mm X 90 mm
      • Compression : 9.6:1
      • Power : 108 hp @ 6000 rpm & 100 ft·lbf @ 5000 rpm
      • Valvetrain : SOHC
      • Fuel Control : OBD-0 MPFI

D16A8

  • Found in:
    • 1988-1991 Civic/CRX/Concerto (UK/Europe)
    • 1989-1996 Rover 216/416 GTI (UK/Europe)
      • Displacement : 1590 cm3
      • Bore and Stroke : 75 mm X 90 mm
      • Compression : 9.5:1
      • Power : 137 hp @ 6800 rpm & 108 ft·lbf @ 5700 rpm
      • Valvetrain : DOHC
      • Fuel Control : OBD-0 MPFI

D16A9

  • Found in:
    • 1988-1991 Civic/CRX/Concerto (UK/Europe)
    • 1989-1996 Rover 216/416 GTI (UK/Europe)
      • Displacement : 1590 cm3
      • Bore and Stroke : 75 mm X 90 mm
      • Compression : 9.5:1
      • Power : 130 hp @ 6800 rpm & 108 ft·lbf @ 5700 rpm
      • Valvetrain : DOHC
      • Fuel Control : OBD-0 MPFI

D16Y5

  • VTEC-E
  • Found in:
    • 1996-2000 Honda Civic HX
      • Displacement : 1590 cm3
      • Bore and Stroke : 75 mm X 90 mm
      • Compression : 9.4:1
      • Power : 115 hp @ 6200 rpm & 104 ft·lbf @ 5400 rpm
      • Valvetrain : SOHC VTEC-E
      • Fuel Control : OBD-2 MPFI

D16Y7

  • Found in:
    • 1996-2000 Honda Civic DX/LX/CX
      • Displacement : 1590 cm3
      • Bore and Stroke : 75 mm X 90 mm
      • Compression : 9.4:1
      • Power : 106 hp @ 6200 rpm & 103 ft·lbf (141 N·m) @ 4600 rpm
      • Valvetrain : SOHC
      • Fuel Control : OBD-2 MPFI

D16Y8

  • VTEC
  • Found in:
    • 1996-2000 Honda Civic EX
    • 1996-1998 Honda Civic Coupe iSR (UK model)
    • 1997-2000 Acura 1.6EL
      • Displacement : 1590 cm3
      • Bore and Stroke : 75 mm X 90 mm
      • Compression : 9.6:1
      • Power : 127 hp @ 6600 rpm & 107 ft·lbf @ 5500 rpm
      • Valvetrain : SOHC VTEC
      • Fuel Control : OBD-2 MPFI

D16Z6

  • VTEC
  • Found in:
    • 1992-1995 Honda Civic EX/Si, Del Sol Si,
      • Displacement : 1590 cm3
      • Bore and Stroke : 75 mm X 90 mm
      • Compression : 9.4:1
      • Power : 125 hp @ 6600 rpm & 106 ft·lbf @ 5200 rpm
      • VTEC Switchover 4800 rpm
      • Valvetrain : SOHC VTEC
      • Fuel Control : OBD-1 MPFI

D17 Series Engines (1.7 Liters)

D17A1

  • Found in:
    • 2001-2005 Honda Civic DX/LX
      • Displacement : 1668 cm3
      • Bore and Stroke : 75 mm X 94.4 mm
      • Compression : 9.5:1
      • Power : 115 hp @ 6100 rpm & 110 ft·lbf @ 4500 rpm
      • Valvetrain : SOHC
      • Fuel Control : OBD-2 MPFI

D17A2

  • VTEC
  • Found in:
    • 2001-2005 Honda Civic EX
      • Displacement : 1668 cm3
      • Bore and Stroke : 75 mm X 94.4 mm
      • Compression : 9.9:1
      • Power : 127 hp @ 6300 rpm & 114 ft·lbf @ 4400 rpm
      • Valvetrain : SOHC VTEC
      • Fuel Control : OBD-2 MPFI

D17A6

  • VTEC-E
  • Found in:
    • 2001-2005 Honda Civic HX
      • Displacement : 1668 cm3
      • Bore and Stroke : 75 mm X 94.4 mm
      • Compression : 9.9:1
      • Power : 117 hp @ 6100 rpm & 111 ft·lbf @ 4500 rpm
      • Valvetrain : SOHC VTEC-E
      • Fuel Control : OBD-2 MPFI

D17A7

  • Found in:
    • 2004-2005 Honda Civic GX
    • Uses CNG (Compressed Natural Gas)
      • Displacement : 1668 cm3
      • Bore and Stroke : 75 mm X 94.4 mm
      • Compression : 12.5:1
      • Power : 100 @ 6100 rpm & 98 ft·lbf @ 4000 rpm
      • Valvetrain : SOHC
      • Fuel Control : OBD-2 MPFI

ZC (similar to D16A1, D16A3, D16A6, D16A8 and D16A9 engines)

A few D-series variants are labelled "ZC", but they are not truly a different series. There are both SOHC and DOHC ZC engines. The SOHC ZC is similar to the D16A6 engine, and the DOHC ZC is similar to the D16A1, D16A3, D16A8 and D16A9 engines.

What is a ZC? (fourthgenhatch.net)

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