Honda B engine explained

Honda B-Series engine
Manufacturer:Honda
Production:1988 - 2001
Configuration:Naturally aspirated inline-4
Valvetrain:DOHC, VTEC in some models
Successor:Honda K engine
Redline:6,500 - 8,400 rpm
Compression:8.8:1-11.1:1
Fueltype:Gasoline
Coolingsystem:Water-cooled
Displacement:NaNcc
Power:NaN0NaN0
Torque:NaN0NaN0

The B-series are a family of inline four-cylinder DOHC automotive engines introduced by Honda in 1988. Sold concurrently with the D-series which were primarily SOHC engines designed for more economical applications, the B-series were a performance option featuring dual overhead cams along with the first application of Honda's VTEC system (available in some models), high-pressure die cast aluminum block, cast-in quadruple-Siamese iron liners.[1]

To identify a Honda B-series engine, the letter B is normally followed by two numbers to designate the displacement of the engine, another letter, and in US-spec engines, another number. The Japanese spec-engines are normally designated with a four character alphanumeric designation.[2] The B-series, the B20B variant in particular, is not to be confused with the earlier Honda B20A engine introduced in 1985 and primarily available in the Prelude and Accord-derived vehicles from 1985 to 1991. While sharing some design elements and both being multivalve Honda four-cylinders, the B-series and B20A differ substantially in architecture, enough to be considered distinct engine families.[3]

They were made in 1595cc, 1678cc, 1797cc, 1834cc, and 19731NaN1 variants, with and without VTEC (Variable valve Timing and Electronic lift Control). Later models have minor upgrades including modifications to the intake valves and ports and piston tops, along with individual cylinder oil injectors (B18C models). They produce between 1260NaN0 and 1900NaN0, with some models capable of a redline over 8500 RPM.[4]

Although it has many variations, the basic design differs very little among the B-Series. There are actually two short blocks which are used for the entire series. The distinction between them was the cylinder block deck height. The one used for B16 and B17 engines (except for B16B) has a deck height of 203.9mm while the short block used for B16B, B18 and B20 engines has a deck height of 212mm.[5]

The Honda B16 has appeared in six different forms over the years. The Honda B-series was replaced by the K-series in Civic, Integra, Odyssey, and CR-V applications.

B16

B16A (First Generation)

The first VTEC engine.

B16A (Second Generation)

B16B (Type R)

1595cc

10.8:1

1600NaN0 at 7500 RPM

8,400 RPM

Note: This engine uses the same block as the Integra Type R, which is taller than the B16A block, but with a crank the same stroke as the B16A. It uses longer rods to accommodate for this, which is why the Rod/Stroke ratio is higher than a standard B16. It is basically a ‘Destroked B18C Type R engine’[7] [8]

B16A1

B16A2

B16A3

B16A4

B16A5

Note: Only offered on SiRs with automatic transmissions.

B16A6

B17

B17A1

B18

B18A

The original Japanese B18A is not considered to be part of the modern B-series family, although it shares its dimensions with the later B18A1. This engine shares many characteristics with the B20A/B21 See Honda B20A engine.

B18A1

B18A2

B18B1

B18B2

B18B3

B18B4

JDM B18C Type R

JDM B18C

SiR-G/GSR

B18C1

B18C2

B18C3

B18C4

B18C5 (Type R)

B18C6 (Type R)

B18C7 (Type R)

B20

B20B-B20B4

B20B

Non VTEC

B20Z2

Non-VTEC

B20B JDM

B20A/B20B

The B20A3 and B20A5 are the predecessor to the B family. All B-series engines were based from the B20A, but most engine components are not compatible. For more information, refer to the F3-series Honda race car that used a B20A engine. Also see Honda B20A engine.

B Series Transmissions

Note: All (1992 up, non-Prelude) "Big Spline" B series Transmissions are interchangeable.YS1 casing can take S80 Internals or a hydraulic conversion kit can be used to operate hydraulic transmissions in cable operated models, however A1/S1/J1/Y1 internals do not swap into the later model YS1 or hydraulic casings due to different shaft diameters.

J1/S1

A1/YS1

Y1

Y2

YS1

S80/N3E

S80/Y80

S9B

Y21/Y80/S80/S4C

SBXM

See also

Notes and References

  1. Web site: AE: Honda's Siamese-quadruplet cylinder liner casting . 2023-04-12 . dwolsten.tripod.com . 2023-04-12 . https://web.archive.org/web/20230412210343/https://dwolsten.tripod.com/articles/jan96a.html . live .
  2. Book: Jason, Siu. Honda B-series engines. 2008. 39966 grand ave North Branch MN,55056. 978-1-932494-78-5. 6.
  3. Web site: CarTechBooks . An Introduction to the Honda B-Series Engine . 2023-12-03 . CarTechBooks . 2023-10-02 . https://web.archive.org/web/20231002112140/https://www.cartechbooks.com/blogs/techtips/introductiontohondabseriesengines . live .
  4. Web site: CarTechBooks . An Introduction to the Honda B-Series Engine . 2023-11-30 . CarTechBooks . 2023-10-02 . https://web.archive.org/web/20231002112140/https://www.cartechbooks.com/blogs/techtips/introductiontohondabseriesengines . live .
  5. Web site: JDM Spec Engines - Honda B-Series Engines. jdmspecengines.com.
  6. Web site: CarTechBooks . An Introduction to the Honda B-Series Engine . 2023-12-03 . CarTechBooks . 2023-10-02 . https://web.archive.org/web/20231002112140/https://www.cartechbooks.com/blogs/techtips/introductiontohondabseriesengines . live .
  7. Web site: CivicTypeR.org - JDM EK9 Honda Civic Type R . 2010-11-23 . 2011-07-25 . https://web.archive.org/web/20110725173607/http://www.civictyper.org/ek9civic.html . live .
  8. Web site: 1997 Honda Civic Type R E-EK9. Carfolio. July 1, 2018. July 1, 2018. https://web.archive.org/web/20180701083238/https://www.carfolio.com/specifications/models/car/?car=84249. live.
  9. Web site: CarTechBooks . An Introduction to the Honda B-Series Engine . 2023-12-03 . CarTechBooks . 2023-10-02 . https://web.archive.org/web/20231002112140/https://www.cartechbooks.com/blogs/techtips/introductiontohondabseriesengines . live .
  10. Web site: CarTechBooks . An Introduction to the Honda B-Series Engine . 2023-12-03 . CarTechBooks . 2023-10-02 . https://web.archive.org/web/20231002112140/https://www.cartechbooks.com/blogs/techtips/introductiontohondabseriesengines . live .
  11. Web site: CarTechBooks . An Introduction to the Honda B-Series Engine . 2023-12-03 . CarTechBooks . 2023-10-02 . https://web.archive.org/web/20231002112140/https://www.cartechbooks.com/blogs/techtips/introductiontohondabseriesengines . live .
  12. Web site: FFS Tech B-series Piston Check . 2017-03-02 . 2017-03-05 . https://web.archive.org/web/20170305223225/http://www.ff-squad.com/tech/temp/pistons.htm . live .

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