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Honda Gearbox Ratios

The table below details the gearbox ratios that can be found in all of the different JDM (Japan Domestic Market) B series transmissions. It also details whether or not the transmission is available with an LSD (limited slip differential).

 

B Series gearbox ratios
 

Civic
Type-R 98

(E-EK9)

Civic
SiR
(E-EK4)

Del-Sol CRX
(E-EG2)

Integra
Type-R 96/US
(JDM E-DC2/E-DB8)

Integra
Type-R 98
(JDM E-DC2/E-DB8)

Integra
SiR-G
SiR-II

Integra
GSR
(USA, E-DC2/E-DB8)

Civic/CRX
91 SiR 
(E-EF8/E-EF9)

Civic
92 SiR
(E-EG6)

Transmission 

S80 (S4C)

Y2

Y21

S80 (S4C)

S80 (S4C)

Y80 (S4C)

Y80 (S4C)

Y1 (S4C)

Y2 (S4C)

1st

3.230

3.230

3.307

3.230

3.230

3.230

3.230

3.166

3.307

2nd

2.105

2.105

2.105

2.105

2.105

1.900

1.900

2.052

2.105

3rd

1.458

1.458

1.458

1.458

1.458

1.360

1.360

1.416

1.458

4th

1.107

1.107

1.107

1.107

1.034

1.034

1.034

1.103

1.107

5th

0.848

0.848

0.848

0.848

0.787

0.787

0.787

0.870

0.848

R

3.000

3.000

3.000

3.000

3.000

3.000

3.000

3.000

3.000

Final Drive

4.40

4.40

4.40

4.40

4.785

4.40

4.40

4.266

4.40

LSD

Helical LSD

None

None

Helical LSD

Helical LSD

None

None

Opt. Helical LSD

Opt. Helical LSD

 

Code

S80

Y21/Y80/S80/S4C

S80/Y80

Y1 

YS1

S1/J1

S1 

Car

JDM Integra Type R 98+ (LSD)

JDM 96-97 Integra R (LSD)
JDM Civic R [EK9] (LSD)
JDM Civic SiR [EK4, EG6] (optional LSD)

JDM SiR-G (optional LSD)

JDM CRX/Civic SiR [EF8, EF9] (optional LSD)

JDM 92-93 XSi Integra (optional LSD)

JDM 90-91 Integra XSi [DA-6]

integra LS

Type

Hydraulic

Hydraulic

Hydraulic

Cable

Cable

Cable

Cable

1st

3.230

3.230

3.230

3.166

3.307

3.230

3.230

2nd

2.105

2.105

1.900

2.052

2.105

2.105

1.900

3rd

1.458

1.458

1.360

1.416

1.458

1.458

1.269

4th

1.034

1.107

1.034

1.103

1.107

1.107

0.966

5th

0.787

0.848

0.787

0.870

0.880

0.848

0.714

Reverse

3.000

3.000

3.000

3.000

3.000

3.000

3.000

Final Drive

 

4.785

4.400

4.400

4.266

4.400

4.400

4.400

Transmission Calculator

 

-

Miles:

Kilometers:

Conversion

Teeth count

Tranny Type
98-01 JDM ITR
95.5-98 JDM ITR
98+ CTR
97-01 US ITR
94-01 US GSR
93.5-01 JDM SiR-G

93-97 (US) Delsol DOHC VTEC

(US) 99+ Si Coupe

(US) 94-01 LS

1st
main: 13
counter: 42
main: 13
counter: 42
main: 13
counter: 42
main: 13
counter: 42
main: 13
counter: 42
main: 13
counter: 42
2nd
main: 19
counter: 40
main: 19
counter: 40
main: 20
counter: 38
main: 19
counter: 40
main: 19
counter: 40
main: 20
counter: 38
3rd
main: 24
counter: 35
main: 24
counter: 35
main: 25
counter: 34
main: 24
counter: 35
main: 24
counter: 35
main: 26
counter: 33
4th
main: 29
counter: 30
main: 28
counter: 31
main: 29
counter: 30
main: 28
counter: 31
main: 28
counter: 31
main: 29
counter: 30
5th
main: 33
counter: 26
main: 33
counter: 28
main: 33
counter: 26
main: 33
counter: 28
main: 32
counter: 28
main: 35
counter: 25
Final Drive
4.785
main: 14
counter: 67
4.400
main: 15
counter: 66
4.400
main: 15
counter: 66
4.400
main: 15
counter: 66
4.400
main: 15
counter: 66
4.266
main: 15
counter: 64

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