thumb|270px|A [[Honda Civic engine with CVCC]]
CVCC, or , is an internal combustion engine technology developed and trademarked by the Honda Motor Company.
The technology's name refers to its primary features: Compound refers to the use of two combustion chambers; Vortex refers to the vortex generated in the main combustion chamber, increasing combustion speed, and Controlled Combustion refers to combustion occurring in a timely, controlled manner.
History
Following the establishment of an "Air Pollution Research Group" by Honda in 1965, its collection of emissions data from American automakers, and subsequent research into emissions control and prechambers, the first mention of CVCC technology was by Soichiro Honda on February 12, 1971, at the Federation of Economic Organizations Hall in Otemachi, Chiyoda-ku, Tokyo. Its use of CVCC was also known as COMBAX (COMpact Blazing-combustion AXiom).
CVCC-equipped engines
{| class="wikitable"
!Series
!Displacement
!Valvetrain
!Aspiration
!Power
!Torque
!Applications
|-
|ED
|
| rowspan="5" |SOHC 12-valve
| rowspan="5" |3-barrel carburetor
| @ 5,000 rpm
| @ 3,000 rpm
|1975- Honda Civic CVCC (ED1)
1975- Honda Civic Wagon (ED2)
1976-1979 Honda Civic CVCC (ED3)
1976-1979 Honda Civic Wagon (ED4)
|-
|EF
|
| @ 5,000 rpm
| @ 3,000 rpm
|1976-1978 USDM Honda Accord CVCC
|-
|EJ
|
| @ 5,000 rpm
| @ 3,000 rpm
|1980- Honda Civic (EJ1)
1980- Honda Ballade (EJ1)
1980- Triumph Acclaim (EJ1)
1981-1983 Honda Civic CVCC (EJ1)
|-
|EK
|
| @ 4,500 rpm (six-port cylinder head, 1979-1980)
@ 4,500 rpm (eight-port cylinder head, 1980-1981)
| @ 3,000 rpm (six-port cylinder head, 1979-1980)
@ 3,000 rpm (eight-port cylinder head, 1980-1981)
|1979-1983 USDM Honda Accord CVCC
1979-1982 USDM Honda Prelude CVCC
1981-1985 JDM Honda Vigor
|-
|ES (CVCC-II)
|
|Dual side draft carburetors (ES1)
3-barrel carburetor (ES2)
| @ 5,500 rpm (ES1)
@ 5,800 rpm (ES2)
| @ 4,000 rpm (ES1)
@ 3,500 rpm (ES2)
|1983-1984 Honda Prelude (ES1)
1984-1985 Honda Accord (ES2)
|-
|EV
|
|3-barrel carburetor
| @ 5,500 rpm (USDM)
@ 6,000 rpm (JDM)
@ 6,000 rpm (Rover 213)
| @ 3,500 rpm (USDM)
@ 3,500 rpm (JDM)
|1983-1986 Honda Civic (EV1)
1983-1986 Honda CR-X (EV1)
1984-1990 Rover 213 (EV2)
|-
|EW
|
|3-barrel carburetor
|
|
|1984-1985 Honda Civic/CR-X DX (EW1)
1984-1986 Honda Civic (EW1)
1984-1986 Honda Shuttle (EW1)
|-
|EY
|
|Carburetor
| @ 5,800 rpm
| @ 3,500 rpm
|1983 Honda Accord 1600 E-AC
|}
References
- Setright, L. J. K. (1975). Some Unusual Engines. London: Mechanical Engineering Publications Limited.
- An Evaluation of a 350 CID Compound Vortex Controlled Combustion (CVCC) Powered Chevrolet Impala