**Veteran - Vintage - Classic - Modern**

Understanding the Automobile

Honda B18 engine

The Honda B18 engine is built as a pure DOHC engine for the most part as a VTEC engine in compact cars from Honda . It is found in the Civic , CRX, CRX Del Sol , Integra , CR-V and some other models. The displacement ranges from 1,797 cc to 1,834 cc The power range is from 126 to about 200 hp for the JDM Type R. The production was recorded in 1986 and ended in 2001 with the introduction of the seventh generation of the Civic .

B18A1

Found in:1990–1991 Acura Integra USDM "RS/LS/LS Special Edition/GS" (DA9 Liftback/Hatchback, DB1 Sedan)
- OBD0
- Displacement: 1,834 cc (111.9 cu in)
- Compression: 9.2:1
- Bore: 81 mm (3.2 in)
- Stroke: 89 mm (3.5 in)
- Rod Length: 137.01 mm (5.394")
- Rod/Stroke Ratio: 1.54
- Redline: 6,500 rpm
- Rev Limiter: 7,200 rpm
- Programmed fuel injection
- Power: 130 bhp (97 kW; 132 PS) @ 6000 rpm & 121 lb⋅ft (164 N⋅m) @ 5000 rpm
- Transmission: S1, A1, cable.

The Japanese B18A is not considered part of the modern B-series family. This engine shares many characteristics with the B20A/B21

- 1986–1989 Accord Aerodeck LXR-S/LX-S (Japan)
- 1986–1989 Accord EXL-S/EX-S (Japan)
- 1986–1989 Vigor MXL-S (Japan)
  - Displacement: 1,834 cc (111.9 cu in)
  - Compression: 9.7:1
  - Bore: 81 mm (3.2 in)
  - Stroke: 89 mm (3.5 in)
  - Dual Keihin Carbs
  - Power: 100 hp (75 kW) @ 6100 rpm & 128 lb⋅ft (174 N⋅m) @ 4700 rpm
  - Transmission: A2N5, E2N5

B18A1Non-VTEC

Found in: 1992-1993 Acura Integra USDM "GS/LS/LS Special Edition/RS" (DA9 Liftback/Hatchback, DB1 Sedan)
- OBD1 PR4 ECU
- Displacement: 1,834 cc (111.9 cu in)
- Compression: 9.2:1
- Bore: 81 mm (3.2 in)
- Stroke: 89 mm (3.5 in)
- Rod Length: 137.01 mm (5.394")
- Rod/Stroke Ratio: 1.54
- Redline: 6700 rpm
- Rev Limiter: 7200 rpm
- Programmed fuel injection
- Power: 140 bhp (104 kW; 142 PS) @ 6300 rpm & 126 lb⋅ft (171 N⋅m) @ 5000 rpm
- Transmission: YS1, cable. Larger input shaft than 90-91. Uses same clutch as 94+ B series hydro.

B18A2 Non-VTEC

Found in: 1990-1993 Honda Integra LS DB1 Sedan (Made in India)
- OBD0 PR4 ECU
- Displacement: 1,834 cc (111.9 cu in)
- Compression: 9.2:1
- Bore: 81 mm (3.2 in)
- Stroke: 89 mm (3.5 in)
- Rod Length: 137.01 mm (5.394")
- Rod/Stroke Ratio: 1.54
- Redline: 6500 rpm
- Rev Limiter: 6700 rpm
- Programmed fuel injection
- Power: 140 hp (104 kW; 142 PS) @ 6300 rpm & 126 lb⋅ft (171 N⋅m) @ 5000 rpm
- Transmission: YS1, cable.

B18B1 Non-VTEC

Found in:
- 94-01 Integra RS/LS/SE/GS - DB7/DC4/DC3
- 1994–2000 Honda Integra "RS/LS/GS/SE/(GSI Australia)" (DC4/DB7)
- 1992–1996 JDM Honda Domani (MA5)
- 1993–1994 JDM Honda Integra (DB7)
- 1996–1999 JDM Honda Orthia (EL1)
  - Displacement: 1,834 cc (111.9 cu in)
  - Compression: 9.2:1
  - Bore: 81 mm (3.2 in)
  - Stroke: 89 mm (3.5 in)
  - Rod Length: 137.01 mm (5.394")
  - Rod/Stroke Ratio: 1.56
  - Power: 140 bhp (104 kW) @ 6300 rpm & 127 lb⋅ft (172 N⋅m) @ 5200 rpm
  - Redline: 6800 rpm (7200 rpm on JDM Domani)
  - Rev Limit: 7300 rpm
  - Transmission: Y80/S80 Hydraulic
  - JDM version is marked B18B on the block without any number.
  - JDM version has 9.4:1 compression ratio whereas the USDM version has 9.2:1.
  - JDM version's higher compression ratio and factory tuning results in higher torque and power ratings

B18B2 Non-VTEC

Found in:
- 94-01 Integra RS/LS/SE/GS - DB7/DC4/DC3
- 1994–2001 Honda Integra "RS/LS/GS/SE/(GSI Australia)" (DC4/DB7)
  - Displacement: 1,834 cc (111.9 cu in)
  - Compression: 9.2:1
  - Bore: 81 mm (3.2 in)
  - Stroke: 89 mm (3.5 in)
  - Rod Length: 137.01 mm (5.394")
  - Rod/Stroke Ratio: 1.56
  - Power: 143 bhp (107 kW) @ 6300 rpm & 127 lb⋅ft (172 N⋅m) @ 5200 rpm
  - Redline: 6800 rpm (7200 rpm on JDM Domani)
  - Rev Limit: 7300 rpm
  - Transmission: Y80/S80

B18B3 Non-VTEC

Found in: 1992–1995 Honda Civic – Middle East & South Africa Ballade (SR4)
- Displacement: 1,834 cc (111.9 cu in)
- Compression: 9.2:1
- Bore: 81 mm (3.2 in)
- Stroke: 89 mm (3.5 in)
- Power: 143 hp (107 kW) @ 6000 rpm & 123 lb⋅ft (167 N⋅m) @ 5000 rpm
- Transmission: y80

B18B4 Non-VTEC

Found in: 1996–2000 Honda Civic – Middle East & South Africa Ballade (SO4)
- Displacement: 1,834 cc (111.9 cu in)
- Compression: 9.2:1
- Bore: 81 mm (3.2 in)
- Stroke: 89 mm (3.5 in)
- Power: 103 kW (138 hp) @ 6200 rpm & 126 lb⋅ft (171 N⋅m) @ 4900 rpm
- Transmission: S4C(non B16A ratios), S80?

JDM B18C Type R DOHC VTEC

Identification: PR3 stamp on engine head, top radiator hose connected towards back of head
Found in: 1996-2001 Honda Integra JDM Type R (DC2 & DB8)
- Rev-limit: 8900 rpm
- Redline: 8300 rpm
- Power: 197 hp (147 kW) @ 8000 rpm & 133 lb-ft (180 Nm) @ 7200 rpm (96 spec) ; 200 hp (149 kW) @ 8000 rpm & 137 lb-ft (186 Nm) @ 6200 rpm (98 spec)
- Transmission: S80 with Helical LSD
- S80 spec: J4D (96 Spec: 4.4 final drive), N3E (98 Spec: 4.785 final drive w/ 1.034 4th & .787 5th Gears)
- Displacement: 1,797 cc (109.7 cu in)
- Compression: 11.1:1
- Bore: 81 mm (3.2 in)
- Stroke: 87.2 mm (3.4 in)
- Rod Length: 137.9 mm (5.4 in)
- Rod/Stroke Ratio: 1.58
- VTEC Engagement @ 5800 rpm (96 spec) 6000 rpm (98 spec)
- ECU code: P73-003 (96 spec) P73-013 (98 spec) P73-023 (00 spec)

JDM B18C Type R DOHC VTEC

JDM B18C SiR-G/GSR VTEC

Found in:
- 95-98 Honda Integra JDM SiR/SiR II (DB8, DC2)
- 98-99 Honda Integra JDM SiR-G (DB8, DC2)
  - Identification top rad hose connected towards front of head
  - Red Line: 8000 rpm
  - Rev-Limit: 8200
  - Power: 132.5 kW (180 PS; 178 bhp) @ 7200 rpm & 126 lb⋅ft (171 N⋅m) @ 6200 rpm
  - Displacement: 1,797 cc (109.7 cu in)
  - Compression: 10.6:1
  - Bore: 81 mm (3.2 in)
  - Stroke: 87.2 mm (3.4 in)
  - ECU code: P72
  - VTEC Engagement @ 4400 rpm
  - Transmission Y80 (with optional LSD)

B18C1 DOHC VTEC

Found in:1994–2001 Acura Integra USDM GS-R (DC2 & DB8)
- Displacement: 1,797 cc (109.7 cu in)
- Compression: 10.0:1
- Bore: 81 mm (3.2 in)
- Stroke: 87.2 mm (3.4 in)
- Rod Length: 137.9 mm (5.429 in)
- Rod/Stroke Ratio: 1.60
- Power: 170 hp (127 kW) @ 7600 rpm
- Torque: 128 lb⋅ft (174 N⋅m) @ 6200 rpm
- Redline: 8100 rpm (Fuel Cut-off @ 8300 rpm)
- Secondary Runners Open @ 5,750 rpm
- VTEC Engagement @ 4,800 rpm
- ECU code: P72

B18C2 DOHC VTEC

Found in: 1994-2001 Honda Integra AUDM/NZDM VTi-R
- Compression: 10.0:1
- Displacement: 1,797 cc (109.7 cu in)
- Bore: 81mm
- Stroke: 87.2mm
- Power: 170 hp (127 kW) @ 7300 rpm
- Torque: 128 lb⋅ft (174 N⋅m) @ 6200 rpm
- Redline: 8000 rpm (Fuel cut-off @ 8200 rpm)
- VTEC Engagement @ 4500 rpm
- IAB Engagement @ 6000 rpm
- Transmission: Y80 (obd1) - S80 (obd2)
- ECU code: P72

B18C3 DOHC VTEC

Found in: Acura Integra Asian market, USDM Acura Integra GSR (2000 model)
- Power: 190 PS (139 kW; 187 hp) @ 7600 rpm & 128 lb·ft (174 N·m) @ 7500 rpm
- Compression: 10.8:1
- Bore: 81mm
- Stroke: 87.2mm

B18C4 VTEC

Found in:
- 1996–2000 UK Civic
- VTi 5-door Hatch (MB6)
- 1996–2000 UK Civic 1.8i VTi-S (Limited Edition) 5-door Hatch (MB6)
- 1996–2000 UK Civic Aerodeck 1.8i VTi 5-door Wagon (MC2)
- 1998–1999 EU Civic Aerodeck 1.8i VTi 5-door Wagon (MC2)
- 1998–1999 EU Civic 1.8i VTi 5-door Hatch (MB6)
  - Displacement: 1,797 cc (109.7 cu in)
  - IAB open @ 4300 rpm
  - VTEC engagement@ 5750 rpm
  - Compression: 10.0:1
  - Power: 169 hp (126 kW) @ 7600 rpm & 128 lb⋅ft (174 N⋅m) @ 6200 rpm
  - Limit: 8,400 rpm
  - Transmission: S9B 4.26 final drive TORSEN LSD.
  - ECU code: 37820-P9K-E11 (1997-1999) 37820-P9K-G11 (2000-2001)
  - bore: 81
  - stroke 87.2

B18C5 (Type R) DOHC VTEC

Found in: 1997-1998,1999 CDM, 2000-2001 Acura Integra USDM/CDM Type R
- Displacement: 1,797 cc (109.7 cu in)
- Compression: 10.6:1
- Bore: 81 mm (3.2 in)
- Stroke: 87.2 mm (3.4 in)
- Rod Length: 137.9 mm (5.4 in)
- Rod/Stroke Ratio: 1.58
- Power: 195 hp (145 kW) @ 7800 rpm & 130 lb⋅ft (176 N⋅m) @ 7500 rpm
- Redline: 8400rpm (Fuel cut-off @ 9000rpm)
- VTEC Engagement @ 5700 rpm
- Transmission: S80 w/LSD

B18C6 (Type R) DOHC VTEC

Found in: 1998–2001 Honda Integra UKDM/EUDM Type R
- Displacement: 1,797 cc (109.7 cu in)
- Compression: 11.1:1
- Air intake diameter: 62 mm (2.4 in)
- Bore: 81 mm (3.2 in)
- Stroke: 87.2 mm (3.4 in)
- Rod Length: 137.9 mm (5.4 in)
- Rod/Stroke Ratio: 1.58
- Power: 190 PS (139.7 kW) @ 7900 rpm & 131 lb⋅ft (178 N⋅m) @ 7300 rpm
- Redline: 8400 rpm
- Rev-limiter: 8600 rpm
- VTEC engagement: 5900 rpm
- Transmission: S80 w/LSD

B18C7 (Type R) DOHC VTEC

Found in: 1999-2001 Honda Integra AUDM/NZDM Type R
- Displacement: 1,797 cc (109.7 cu in)
- Compression: 11.1:1
- Air intake diameter: 62 mm (2.4 in)
- Bore: 81 mm (3.2 in)
- Stroke: 87.2 mm (3.4 in)
- Rod Length: 137.9 mm (5.4 in)
- Rod/Stroke Ratio: 1.58
- Power: 193 PS/189 hp (141 kW) @ 8200 rpm & 127 ft·lbf/172 N·m @ 7500 rpm
- Redline: 8400 rpm
- Rev-limiter: 8600 rpm
- VTEC engagement: 4300 rpm

code	capacity	Bore × stroke	compression	kW (hp) /1 / min	Nm / 1 / min	transmission	VTEC	Redline	Installed in:
B18A	1834 cc	81 × 89 mm	9.4: 1	96 (130) / 6100	164/4700	A2N5, E2N5	No		1986-1989 Accord Aerodeck LXR-S / LX-S (Japan) 1986-1989 Accord EXL-S / EX-S (Japan) 1986-1989 Vigor MXL-S (Japan)
B18A1 (90-91)	1834 cc	81 × 89 mm	9.2: 1	96 (130) / 6000	150/5000	S1 (rod)	No		1990-1993 Acura Integra usdm "RS / LS / GS"
B18A1 (92-93)	1834 cc	81 × 89 mm	9.2: 1	100 (140) / 6300	159/5000	YS1 (cable)	No		1990-1993 Acura Integra usdm "RS / LS / GS"
B18B1	1834 cc	81 × 89 mm	9.2: 1	106 (142) / 7000	172/5200	Y80, S80	No		1994-2001 Acura Integra "RS / LS / GS / SE" (DC4 / DB7)
B18C	1797 cm³	81 × 87.2 mm	10.6: 1	132 (180) / 7200	174/6200	S80, Y80, S80 w / LSD, Y80 w / LSD	Yes	- / 8200	JDM Honda Integra SiR-G
B18C	1797 cm³	81 × 87.2 mm	11.1: 1	147 (200) / 8000	172/7500 (96specR) 181/6200 (98specR)	J4D (96specR w / LSD) N3E (98specR w / LSD)	Yes	8400/8600	JDM Honda Integra Type R
B18C1	1797 cm³	81 × 87.2 mm	10.0: 1	125 (170) / 7600	173/6200	Y80 yes	Yes		1994-2001 Honda / Acura Integra GS-R (DC2 & DB8)
B18C2	1797 cm³		10.6: 1	125 (170) / 7600	175/6200	Y80 (no LSD) 5-speed manual gearshift	Yes	8200/8300	1994-1999 Honda Integra VTi-R AUDM Spec 1993-1999 Honda Integra VTi-R
B18C3	1797 cm³			141 (192) / 8200	172/7500		Yes		1995-1998 Acura Integra Type R
B18C4	1797 cm³		10.0: 1	124 (169) / 7600	158/6200	S9B with LSD	Yes	- / 8200	1996-2000 UK Civic 1.8i VTi 5-door Hatch 1996-2000 UK Civic Aerodeck 1.8i VTi 5-Door Wagon 1998-1999 EU Civic Aerodeck 1.8i VTi 5-door Wagon 1998-1999 EU Civic 1.8i VTi 5-door Hatch
B18C5	1797 cm³	81 × 87.2 mm		141 (192) / 8200	172/7500	S80 with LSD	Yes		USDM DC2 Acura Integra Type-R (Integra Type-R) 1997-2001 Integra Type-R (99 not installed)
B18C6	1797 cm³	81 × 87.2 mm	11.1: 1	140 (190) / 7900	178/7300	S80 with LSD	Yes	8400/8600	1998-2001 Honda Integra UK and Euro Spec Type R
B18C7	1797 cm³			141 (192) / 8200	172/7500		Yes		1996- Honda Integra Type R (Australia)