D series engine Racing

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 more expensive B-series in the Integra.

The Achilles heel of the D-series seems to be its connecting rods, which will withstand a power increase up to a certain point but will break if that limit is exceeded. Generally, a D-series motor can handle up to about 220 bhp, as long as care is taken to avoid detonation through careful spark and fuel management. Of course, the connecting rods, pistons, and other internal parts can be replaced with more durable after market parts that can handle more power, but many choose to swap to a B-series motor 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 with 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.

When employing forced induction on a D16, at a minimum the stock hypereutectic pistons should be replaced as well as the connecting rods if the commonly used "stock parts" limit of 220 hp (164 kW) is to be exceeded, although the D series crankshaft in particular has been found to reliably handle up to 600 hp (450 kW).

High compression OEM pistons are a quick way to gain horsepower in a naturally aspirated motor. All D-series motors run the same bore (75 mm), however most factory motor variations (i.e. D16A1, D15B7, D16Y7) have used a different piston compression height as well as a different dome or dish. In general, the older D motors have a higher compression height and a larger combustion chamber which create around a 9.1:1 - 9.4:1 compression ratio from the factory. The newer variants have slightly lower compression height combined with a much smaller combustion chamber to create a compression ratio of 9.4:1 - 9.9:1. Now if you combine an older D16 motor's piston with that of a newer D16 head you can end up with a compression ratio of about 10.7:1 with no other work (i.e. D16A1 piston, D16A6 head). There are a few websites that have compression ratio calculators for Honda motors.

D16 and D17 cranks share the same size main bearing diameters.
D16 and D17 rods all have the same major dimensions. The D15 rod is shorter (in general) and has a smaller bearing size, although the wrist pin bore is the same.
D15Z1 and D15B motors have a rod that is the same length as a D16. Other than the rod length, the rest of the bottom end is D15 spec (i.e. rod and crank bearings). D15B has D16 sized rod journals. D15B uses the same p28 rods that the D16z6 does. All other D15s have smaller rod journals.
The B18A/B Rod has the same bearing bore as a D16. It is 0.044" wider, so the sides of the "big end" of the rod have to be shaved down for use in a D16/17. The wrist pin bore is larger so a conventional D15/16/17 piston can only be used if the stock "small end" bushing in the rod is replaced with one of the proper size. These affordable rods are generally considered to be able to handle up to 300 hp (220 kW).
There is a D16 motor that runs on compressed natural gas (96-98 Civic GX). The pistons from that motor have a 12.5:1 CR. The wrist pin bore in the 98-00 D16B5 is 21 mm, like the B18B rod. D17A7 01-05 Civic GX uses 19 mm wrist pins.
Interestingly enough, the Suzuki Vitara has a 75 mm bore as well, so engine builders have occasionally used these pistons in the D16 motor. These pistons are commonly referred to as Vitaras, and they provide an 8.5:1 compression ratio, and thicker ring lands. Lowering the stock compression ratio lowers compression heat, which raises the detonation thresh-hold and is useful when employing forced induction. There have been reports of over 400hp to the front wheels utilizing these

Engine Specs


D13 Series Engines (1.3 Litre)

D13B1
Found in:
1988-1991 Honda Civic DX (European Market)
Displacement : 1343 cm³
Bore and Stroke : 75 mm X 76 mm
Compression : 9.5:1
Power, Torque : n/s (Not stated in Owners Manual)
Valvetrain : SOHC, 4 valves per cylinder
Fuel Control : Single Carburetor

D13B2
Found in:
1992-1995 Honda Civic DX (European Market)
Displacement : 1343 cm³
Bore and Stroke : 75 mm X 76 mm
Compression : 9:1
Power, Torque : 75 hp (56 kW) @ 5300 rpm
Valvetrain : SOHC, 4 valves per cylinder
Fuel Control : Single Carburetor

D14 Series Engines (1.4 Litre)

D14A1
Found in:
1987-1991 Honda Civic GL and 1990 CRX (European Market)
Displacement : 1396 cm³
Bore and Stroke : 75 mm X 79 mm
Compression : 9.3:1
Power, Torque : 90 hp (90 bhp) @ 6300 rpm, 112Nm @ 4500 rpm
Valvetrain : SOHC, 16 valves
Fuel Control : Dual Carburetor

D14A2
Found in:
1995-1996 Honda Civic MA8 (European Market)
Displacement : 1396 cm³
Bore and Stroke : 75.0 mm X 79.0 mm
Compression : 9.2:1
Torque, Power : 117 Nm @ 5000 rpm, 66 kW @ 6100 rpm
Valvetrain : SOHC, 4 valves per cylinder
Fuel Control : Multi-point fuel Injection, PGM-FI

D15 Series Engines (1.5 Liters)

D15A2
Found in:
1984-1987 Honda CRX DX
1984-1987 Honda Civic (JDM)
Displacement : 1488 cm³
Bore and Stroke : 74 mm X 86.5 mm
Compression : 9.6:1
Power : 76 hp (57 kW) @ 5500 rpm & 84 ft·lbf @ 3500 rpm
Valvetrain : SOHC 3 valves + 1 auxiliary valve for each cylinder
Fuel Control : Carbureted, CVCC, CVCC was not equipped on Canadian CDM cars
Known as the EW-2 from 84-86

D15A3
Found in:
1985-1987 Honda CRX Si and 1987 Civic Si (AU/NZ)
Displacement : 1488 cm³
Bore and Stroke : 74 mm X 86.5 mm
Compression : 8.7:1
Power : 91 hp (68 kW) @ 5500 rpm & 93 ft·lbf @ 4500 rpm
Valvetrain : SOHC, 3 valves/cylinder
Fuel Control : pgm-fi

D15B
VTEC
Found in:
1991-1999 Honda Civic VTi EG4 (Japanese Market)
1992-1998 Honda CRX VXi EG1 (Japanese Market)
Displacement : 1493 cm³
Bore and Stroke : 75 mm X 84.5 mm
Rod Length : 137 mm
Compression : 9.3:1
Power : 130 hp (97 kW) @ 5800 rpm & 102 ft·lbf (14.1kg/m) @ 5200 rpm
Redline : 7200 rpm
Fuel Cut : 7411 rpm
Valvetrain : SOHC VTEC
Head Code : P08
Fuel Control : OBD-1 MPFI

D15B (D15Z7) (with 3 stage VTEC)
3-stage VTEC
Found in:
1996-1999 Honda Civic VTi EK3 and Ferio Vi
Displacement : 1493 cm³
Bore and Stroke : 75 mm X 84.5 mm
Rod Length : 137 mm
Compression : 9.6:1
Power : 130 hp (97 kW) @ 7000 rpm & 102 ft·lbf (14.2kg/m) @ 5300 rpm
Valvetrain : SOHC VTEC
Fuel Control : OBD-2 MPFI

D15B1
(Same as the D15B2 engine, but with a mild camshaft, and a restrictor plate between the throttle body and intake header)

Found in:
1988-1991 Honda Civic Hatchback
Displacement : 1493 cm³
Bore and stroke : 75 mm X 84.5 mm
Compression : 9.2:1
Power : 70 hp (52 kW) @ 4500 rpm & 83 ft·lbf @ 3000 rpm
Valvetrain : SOHC (4 valves per cylinder)
Fuel Control : OBD-O DPFI

D15B2
Found in:
1988-1991 Honda Civic GL/DX/DLX
1988-1991 Honda CRX DX
1992-1995 Honda Civic LSi Hatch/Saloon (European Market)
1990-1995 Honda Concerto (European Market)
Displacement : 1493 cm³
Bore and stroke : 75 mm X 84.5 mm
Compression : 9.2:1
Power : 92 hp (69 kW) @ 6000 rpm & 119 Nm @ 4500 rpm
Valvetrain : SOHC (4 valves per cylinder)
Cam Gear : 38 tooth
Fuel Control : PGM-FI Dual Point (OBD0)
Redline : 7000 rpm (6800 rpm honda concerto)

D15B4
Found in:
1989-1991 Honda Civic GL (Australian Market)
Displacement : 1493 cm³
Bore and stroke : 75 mm X 84.5 mm
Compression : 9.2:1
Power : 90 hp (70 kW) @ 5200 rpm & 122 Nm @ 3800 rpm
Valvetrain : SOHC (2-4 valves per cylinder, depending on year)
Fuel Control : Dual Carburetor

D15B6
Found in:
1988-1991 Honda CRX HFx
Displacement : 1493 cm³
Bore and Stroke : 75 mm X 84.5 mm
Compression : 9.1:1
Power : 62 hp(88-89) 72 hp(90-91)@ 4500 & 83 ft·lbf @ 2800 rpm
Valvetrain : SOHC (2 valves per cylinder)
Fuel Control : OBD-0 MPFI

D15B7
Found in:
1992-1995 Honda Civic CX (Canadian model)
1992-1995 Honda Civic DX/LX
1993-1995 Honda Civic del Sol S
1992-1995 Honda Civic LSi Coupe (European Market)
Displacement : 1493 cm³
Bore and Stroke : 75 mm X 84.5 mm
Compression : 9.2:1
Power : 102 hp (76 kW) @ 6200 rpm & 98 ft·lbf @ 3800 rpm
Valvetrain : SOHC (4 valves per cylinder)
Piston Code : PM3
Fuel Control : OBD-1 MPFI

D15B8
Found in:
1992-1995 Honda Civic CX (U.S. model)
Displacement : 1500 cm³
Bore and Stroke : 75 mm X 84.5 mm
Compression : 9.1:1
Power : 70 hp (52 kW) @ 4500 rpm & 83 ft·lbf @ 2800 rpm
Valvetrain : SOHC (2 valves per cylinder)
Fuel Control : OBD-1 MPFI

D15Z1
VTEC-E
Found in:
1992-1995 Honda Civic VX
1992-1995 Honda Civic VEi (European Market)
Displacement : 1493 cm³
Bore and Stroke : 75 mm X 84.5 mm
Rod Length : 137 mm
Compression : 9.3:1
Power : 92 hp (69 kW) @ 5600 rpm & 97 ft·lbf @ 4800 rpm
Valvetrain : SOHC VTEC-E (4 valves per cylinder)
Piston Code : P07
Fuel Control : OBD-1 MPFI

D15Z4
Found in:
1996-2000 Civic Exi and SA Ballade & Civic 150i
Displacement : 1493 cm3
Power : 90HP and 105HP(82Kw) @ 5800 rpm
Torque (ft·lbf@rpm): 99 (135 N·m) @ 4200 rpm
Valvetrain : SOHC non-VTEC 16v

D15Z6
VTEC
Found in:
1996-2000 Honda Civic LSi (European Market)
Displacement : 1493 cm³
Bore and Stroke : 75 mm X 84.5 mm
Rod Length : 137 mm
Compression : 9.6:1
Power : 115hp @ 6500 rpm
Torque : 100 ft·lbf (141 Nm) @ 4800 rpm
VTEC Switchover : 2500 rpm
Valvetrain : SOHC VTEC-E (4 valves per cylinder)
Fuel Control : PGM-FI MPFI

D15Z8
VTEC-E
Found in:
1996-2000 Honda Civic LS (European Market)
Displacement : 1493 cm³
Bore and Stroke : 75 mm X 84.5 mm
Compression : 9.1:1
Power : 84 kw (114 hp) @ 6500 rpm
Torque : 134 Nm (95 ft·lbf) @ 5500 rpm

D16 Series Engines (1.6 Liters)

D16A1
Found in:
1986-89 Acura Integra (USA)
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
1986-1987 Compression : 9.3:1 1988-1989 Compression : 9.5: 1
1986-1987 Power : 113 hp (84 kW) @ 6250rpm Torque : 99 ft·lbf @ 5500rpm
1988-1989 Power : 118 hp (88 kW) @ 6250rpm Torque: 103 ft·lbf @ 5500rpm
Valvetrain : DOHC non-VTEC
Piston Code 1986-87 : PG6
Piston Code 1988-89 : P29 (PM7 is ZC equivalent/same piston)
Fuel Control : OBD-0 MPFI

D16A3
Found in:
1986-89 Acura Integra (Australia)
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
Compression : 9.5:1
Power : 118 hp (88 kW) @ 5600 rpm & 103 ft·lbf @ 4800 rpm
Valvetrain : DOHC
Fuel Control : OBD-0 MPFI

D16A6
Also known as D16Z2.

Found in:
1988-1991 Honda Civic Si, CRX Si, Civic Wagon RT4WD
1990-1991 Honda Civic EX Sedan
1988-1995 Honda Civic Shuttle RT4WD (UK/Europe/Asia/AU/NZ)
1989-1996 Rover 216/416 GSi (UK/Europe)
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
Compression : 9.1:1
Power : 115 hp (86 kW) @ 5600 rpm & 95 ft·lbf @ 3,800 rpm, redline 6500 rpm (USA)
Note: 1988 engines were 105 hp (78 kW), MY89-91 hp was increased to 108
Valvetrain : SOHC
Fuel Control : OBD-0 four-point PGM-FI
Head Code : PM3
Piston Code : PM6

D16A7
Basically a D16A6 that came without a catalytic converter, like the European version of the D16A6.ex US 4 Door

Found in:
88-95 Models in South Africa
Ballade SH4 and SR4 ( D16A7 / EE4 )
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
Compression : 9.6:1
Power : 115hp @ 5900 rpm & 100ft·lbf @ 4800 rpm
Valvetrain : SOHC
Fuel Control : OBD-0 Multi-point PGM-FI

D16A8
Found in:
1988-1995 Civic/CRX/Concerto (UK/Europe/Australia)
1990-1995 Rover 216/416 GTi(UK/Europe)
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
Compression : 9.5:1
Power : 125 hp (93 kW) @ 6800 rpm & 108 ft·lbf @ 5900 rpm
Valvetrain : DOHC
Fuel Control : OBD-0 MPFI
ECU Code: PM7

D16A9
(Same as D16A8 but without a catalytic converter)

Found in:
1988-1991 Civic/Concerto (UK/Europe)
1988-1991 CRX (UK/Europe/South Africa)
1989-1996 Rover 216/416 GTi (UK/Europe)
1992-1995 Civic Si (Peruvian version)
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
Compression : 9.5:1
Power : 130 hp (97 kW) @ 6800 rpm & 108 ft·lbf @ 5900 rpm
Valvetrain : DOHC
Fuel Control : OBD-0 MPFI
ECU Code: PM7
GearBox : L3 Cable type

D16Y3
Found in:
1995-1997 Honda Civic MB1 LS (UK/Europe)
Displacement : 1590 cm³
Power : 115 hp (86 kW) @ 5600 rpm, redline 6500 rpm
Valvetrain : SOHC

D16Y5
VTEC-E
Found in:
1996-2000 Honda Civic HX
1996 Honda Civic EX(sedan Peruvian version)
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
Compression : 9.4:1
Power : 115 hp (86 kW)@ 5600 rpm & 100 ft·lbf @ 4500 rpm
Valvetrain : SOHC VTEC-E
Fuel Control : OBD-2 MPFI
Head Code : P2J
1996-2000 VTi (Phils. & NZ)
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
Compression :
Power : 127 hp (95 kW)@ 5800rpm
Valvetrain : SOHC VTEC-E
Fuel Control : OBD-2 MPFI
Head Code : P2J
ECU Code : P2M
Piston Code : P2MY

D16Y7
NON-VTEC

Found in:
1996-2000 Honda Civic DX/VP/LX/CX
1999 Honda Civic Special Edition - SE(Canada)
1996-97 Honda del Sol S
Displacement : 1593 cm³
Bore and Stroke : 75 mm X 90 mm
Compression : 9.4:1
Power : 106hp @ 6400 rpm
Torque (ft·lbf@rpm): 103 @ 4,600 rpm
Valvetrain : SOHC 16 valves
Fuel Control : OBD2 MPFI
Head Code : P2F
Piston Code : P2E

D16Y8
V-TEC

Also available in New Zealand under the code D16Y6 Australian version D16Y4

Found in
1997-1998 Honda Civic EX Sedan
1996-1998 Honda Civic EX Coupe
1996-2000 Honda Civic EK Sedan
1996-2000 Honda Civic EX (USDM)
1996-2000 Honda Civic SI (Canada Only)
1996-2000 Acura 1.6EL (Canada Only)
1996-1997 Honda del Sol Si
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
Compression : 9.6:1
D16Y8 1.6 16V SOHC VTEC 2 PGM-FI 1590
127 hp@6600 rpm 108tq@5500 rpm
Head Code : P2J
Piston Code : P2P
Redline 7000 rpm

D16Y9
Found in:
1996-2000 Honda Ballade and Civic in South Africa
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
Compression : 9.2:1
Power, Torque : {{Auto hp350 / 89kw} @ 5900 rpm 146nM @ 4000 rpm
Valvetrain : SOHC, 4 valves per cylinder non - VTEC
Fuel Control : Fuel Injection

D16Z5
(Basically the same engine as the D16A9, but now with a catalytic converter and lamda sensor)

Found in:
1988-1992 Honda CRX (European Market)
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
Compression : 9.5:1
Power : 124 hp (92 kW) @ 6800 rpm
Valvetrain : DOHC
Cam Gear : 34 tooth
Fuel Control : OBD-0 PGM-FI
Head Code : P7
Piston Code : PM7
ECU Code: PM7

D16Z6
Found in
1992-1995 Honda Civic EX, EX-V and SI
1992-1995 Honda Civic ESi (European Market)
1993-1995 Honda Del Sol Si (only USDM)
1993-1995 Honda Del Sol ESi (European)
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
Compression : 9.2:1
Power : 125 hp (93 kW) @ 6600 rpm & 106 ft·lbf @ 5200 rpm
Redline : 7200 rpm
Fuel Cut : 7411 rpm
Valvetrain : SOHC VTEC
Fuel Control : OBD-1 MPFI
Head Code : P08
ECU Code : P28

D16Z9
Found in:
1994-1995 Civic Coupe (EJ1) 1.6i Esi European
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
Compression : 9.2:1
Power : 125 hp (93 kW) @ 6600 rpm & 106 ft·lbf @ 5200 rpm
Redline : 7200 rpm
Fuel Cut : 7411 rpm
Valvetrain : SOHC VTEC
Fuel Control : OBD-1 MPFI
ECU Code : P28

D17 Series Engines (1.7 Liters)

D17A1
Found in:
2001-2005 Honda Civic DX/LX/VP
Displacement : 1668 cm³
Bore and Stroke : 75 mm X 94.4 mm
Compression : 9.5:1
Power : 115 hp (86 kW) @ 5600 rpm & 110 ft·lbf @ 4500 rpm
Valvetrain : SOHC
Fuel Control : OBD-2 MPFI

D17A2
VTEC-E
Found in:
2001-2005 Honda Civic EX
2001-2005 Honda Civic Si (Canada only)
2001-2005 Acura 1.7 EL (Canada only)
Displacement : 1668 cm³
Bore and Stroke : 74.98 mm X 94.4 mm
Compression : 9.9:1
Power : 127 hp @ 5800 rpm & 114 ft·lbf @ 4800 rpm
Valvetrain : SOHC VTEC-E
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 : 9.5:1
Power : 125 hp (93 kW) @ 5800 rpm & 111 ft·lbf @ 3800 rpm
Valvetrain : SOHC VTEC-Ec
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 : 115 @ 5800 rpm & 98 ft·lbf @ 3800 rpm
Valvetrain : SOHC
Fuel Control : OBD-2 MPFI

Posted in: Honda Vtec Tuning Racing