i need to know all of the transmissions that will fit on my jdm b16a. which one is the best for highway driving. my S1 right now is really shitty. please help!!

someone told me that all B-series trannys are interchangable. does that mean that i can take a tranny from a 99-00 civic si?

 

you really need to search


B-series Transmissions

In response to recent questions about different transmissions I think its important to shed some light into the ones available for our b-series motors. There are many differences between B-series transmissions and I've never found an article describing the positives and negatives of each unit. Below, you'll see transmission codes, the car it's found in, and whether or not it has factory LSD. It's important to realize that Honda didn't make it easy for us to distinguish between transmissions. For example, almost all transmissions found in Integra's are stamped S80. This includes the tall LS transmission and the ultra short JDM Type-R transmission. In some cases, the only way to determine which transmission you really have is to take it apart and count the number of teeth on the ring gear. Obviously, in most cases it's not practical to take your transmission apart to determine which one you have. To be safe when acquiring a transmission, you should identify the seller; try to identify the car and or motor it came with.

B16A (Cable), B16A2 (Hydro), B16A3(Hydro):
S4C, S80, Y80, Y21, Y1 (optional LSD)

As most of you know the B16A was featured in Japan between the years of 1989 through 2001. This engine has had several different transmissions mated to it causing some potential confusion.

First, it's important to realize that first generation B16A's came with cable transmissions. The Y1 came with optional factory LSD and should have LSD stamped on the transmission. Determining whether or not a transmission has LSD is very simple, just look into the differential and see if its opened or closed. For those not familiar with this, you'll either see a set of gears that form a closed cylinder, or you'll see an open differential with a bar splitting the middle.

Typically these transmissions have had weak synchro's in 2nd, 3rd, and 4th gears with 3rd gears crunching the most. Its also worth noting that all of the transmissions minus the Y1 have very weak open differentials making it essential that you upgrade if your putting a lot of power to the ground.

As far as gearing, these transmissions are all pretty short. Here is a listing of the gear ratios and final drive, courtesy of http://www.bseries.net.

1st: 3.230
2nd: 2.105
3rd: 1.458
4th: 1.107
5th: 0.848
Reverse: 3.000
Final Drive: 4.400

In conclusion, this transmission is good for all motor and should bring between 500-700 if its hydraulic while cable transmissions are worth between 400-600. Please be careful that the transmission you're buying doesn't have bad synchro's because a lot of them have been beaten on and this is the first problem you'll have. Plus, if you're making a lot of power, 170 to the wheels, be prepared to replace your differential because these can be broken with regularity.

B16B (Hydraulic):
S4C (LSD)

The transmission found in the Civic Type R is highly sought after and very rare. Its gear ratio's are identical to that of the B16A's but has a stronger limited slip and dual synchro's in 2nd, 3rd, and 4th gears. Expect to pay between 1000-1200 for a genuine CTR transmission because they're rare and well worth the price. Its also worth mentioning that these transmissions are Hydraulic type.

B17A1 (Cable):
YS1

This transmission is found on the rare "blacksheep" of b-series motors. The most important feature here is that its cable-type. This means you can bolt this into any 93 and older integra and 91 and older civic without having to change to hydraulic. The synchro's on this transmission are still considered weak, however the gearing is very good for all motor applications as its identical to the B16A transmissions. Finally, this transmission did not have factory LSD, so keep that in mind when someone is trying to tell you otherwise. Look to pay between 400-600 dollars for this transmission, although its going to be difficult to find and usually when you do, there is something wrong with it.

B18A1 (Cable):
YS1

Again, you'll see how Honda didn't help us out any with the stamping on this transmission. These transmissions however, are much different in there gearing. This transmission has a longer first and second gear with slightly longer 3rd and 4th gears. The final drive is still 4.40:1 making this a possibility for all motor applications, but not your best choice. You'll be able to find this transmission in 90-93 Integra's and they're all cable-type. The prices for these should range between 200-400 for clean, good working units. Paying anymore is pointless, as these transmissions are everywhere.

B18B1 (Hydro):
S80/Y80

This is probably the easiest b-series transmission to find because it's found in every non-VTEC 94-01 Integra. Most notably, this transmission is the longest of all b-series transmissions and has the weakest synchro's and weakest differential. The final drive is 4.266:1 and each of the gears is longer compared to its B16A counterparts. For boost, a lot of people like the gearing of this transmission, plus gas mileage is great and they're very cheap. Look to pay no more than 500 for a clean LS tranny because they're everywhere.

Here is a look at the Specs.

1st: 3.230
2nd: 1.90
3rd: 1.269
4th: 0.966
5th: 0.714
Reverse: 3.000
Final Drive: 4.266:1

B18C:
S80/Y80 (Optional LSD)

The transmission found in JDM GSR's is very popular and overall an excellent transmission. For all motor and boost applicatiosn this transmission has excellent gearing and a stronger differential compared to its B16A and B18B counterparts. The transmissions with LSD should have "LSD" stamped on the casing and to make sure, inspect the differential and use the parameters I described before to identify whether or not the transmission really has LSD. Look to pay between 700-1200 for this transmission depending on whether its LSD equipped. Also worth mentioning, these transmissions are all hydraulic.

Here is a look at the specs:

1st: 3.230
2nd: 1.900
3rd: 1.360
4th: 1.034
5th: 0.787
Reverse: 3.000
Final Drive: 4.400

B18C1:
Y80

This transmission is found in all USDM GSR's. Although LSD was not offered these transmissions are still highly sought after because of their stronger differentials and optimal gearing. For those not interested in ultra-short gearing this transmission provides the perfect balance between acceleration and top end. Look to pay around 700-1000 for these transmissions.

The specs are the same as above:

1st: 3.230
2nd: 1.900
3rd: 1.360
4th: 1.034
5th: 0.787
Reverse: 3.000
Final Drive: 4.400

B18C5:
S80 (Helical LSD)

This transmission is one of the best B-series transmissions Honda has offered in its vehicles. Every gear has dual synchro's and the gearing is perfect for all motor applications. Plus, LSD is standard and will be stamped on the housing. Look to spend between 1200-1400 for these transmissions because of their quality, LSD, age and gear ratio's. Finally, if there is some question about whether or not you're S80 has 4.4 final drive or 4.7 final drive you can check the transmission housing. The code "4jhd" means 4.4 final drive was offered as original equipment, while "ne3" signifies 4.78 final drive.

The specs are below:

1st: 3.230
2nd: 2.105
3rd: 1.458
4th: 1.107
5th: 0.848
Reverse: 3.000
Final Drive: 4.400

B18C (JDM Type R):
S80 (Helical LSD)

JDM Type R transmissions are the best for all motor applications where acceleration is emphasized most. All 98 and up JDM Type R transmissions came with 4.785 final drive with the same 1st, 2nd, 3rd gears as the USDM Type R. To make highway driving more tolerable, the 4th and 5th gears are the same as GSR transmissions. Look to spend between 1400-1600 for these transmissions because of their final drive and rarity.

Here is a look at the specs:

1st: 3.230
2nd: 2.105
3rd: 1.458
4th: 1.034
5th: 0.787
Reverse: 3.000
Final Drive: 4.785

if that means nothing to you then here
Basic Info for 92-95
You can tell a DX/CX/VX tranny from a EX/Si by numbers cast into the housing. Just above the filler plug is a set of numbers.
P20/A000 is for DX/CX/VX
P20/B000 is for EX/Si
Other than that, tranny must be split apart to know for sure which one you have.


Available Stock Ratios
EX/Si
1st-----3.250
2nd-----1.900
3rd-----1.250
4th-----0.909
5th-----0.750 for Si HB and Del sol Si
or------0.702 for 2 dr or 4 dr sedan
Final Drive---4.250

DX/LX
1st-----3.250
2nd-----1.762
3rd-----1.172
4th-----0.909
5th-----0.702
Final Drive---4.058

CX /VX
1st-----3.250
2nd-----1.761
3rd-----1.066
4th-----0.853
5th-----0.702
Final Drive---3.250



5th gears
You can swap any of the 5th gearsets for cruising at a higher/lower rpm. This is a simple swap, once your inside the tranny. The 0.771 from the 4g Civic/CRX L3 trannys fit perfectly and is a nice swap to a DX/EX/Si 0.702 5th. Make sure you keep the gearsets with each other. It is very easy to get the 27 tooth gears mixed up. They are very close in size, but will not interchange. You have the following choices.
0.878---??/??---CRX ZC JDM
0.771---35/27---Civic/CRX 88-91 DX/Si
0.750---36/27
0.702---37/26
0.694---36/25---Civic/CRX 88-91 HF
The mysterious VX 5th of 0.673 was a misprint in the 1994 Honda Service Manual. It was the 4th gear ratio of the automatic tranny. It is best to use either the 0.771 or 0.750 with stock or lightly modified engines. You can get by with the 0.702 but mileage will be about the same.


RPM vs. MPH of various 5th gears
5th gear-----FD------45------60------80------100---
0.702------4.058---1898---2530---3373---4217--
0.702------4.250---1988---2650---3533---4417--
0.750------4.250---2123---2831---3775---4718--
0.771------4.250---2183---2910---3880---4850--
0.878------4.250---2486---3314---4419---5523--

Multiply RPM's by 1.135 if using 20" slicks
Multiply RPM's by 1.032 if using 22" slicks


RPM shift tables
These tables will tell you how much your rpm's will drop when shifting. These numbers are for a steady speed shift. If you are accelerating they will be slightly higher due to clutch slippage and continued acceleration. Hybrid trannys also included. MPH numbers are for stock size tires, 22.7" overall diameter. MPH numbers for 5th gear are assuming enough power to overcome wind drag.
How to use these tables...If you shift at 6800 rpm using the DX tranny as an example, your rpm will fall to 3685 in 2nd, 4526 in 3rd, on so on.

DX
1st----3.250---0000/6800---34.8mph
2nd---1.761---3685/6800---64.3mph
3rd----1.172---4526/6800---96.9mph
4th----0.909---5274/6800---124.5mph
5th----0.702---5251/6800---161.3mph

Si/EX
1st----3.250---0000/7200---35.2mph
2nd---1.900---4209/7200---60.2mph
3rd----1.250---4739/7200---91.6mph
4th----0.909---5236/7200---125.9mph
Choose your 5th
5th----0.702---5560/7200---163.0mph
5th----0.750---5941/7200---152.6mph
5th----0.771---6107/7200---148.4mph

Hybrid using ZC 3rd and 4th gears
1st----3.250---0000/7200---35.2mph
2nd---1.900---4209/7200---60.2mph
3rd----1.346---5101/7200---85.0mph
4th----1.033---5526/7200---110.7mph
5th----0.750---5228/7200---152.5mph

-thanks to mista bone and bseries.net

and

Car Name Years Engine Counterpart Type LSD? 1st 2nd 3rd 4th 5th 6th Reverse FDR

Civic EX Coupe 1992-1995 hydro no 3.25 1.9 1.25 0.909 0.702 0 0 4.25
Civic DX Coupe 1992-1995 hydro no 3.25 1.761 1.172 0.909 0.702 0 0 4.058
Civic CX 1992-1995 hydro no 3.25 1.761 1.172 0.909 0.702 0 0 3.888
Civic EX Sedan 1992-1995 hydro no 3.25 1.782 1.172 0.909 0.702 0 0 3.722
Civic LX Sedan 1992-1995 hydro no 3.25 1.761 1.066 0.852 0.702 0 0 3.25
Civic DX Sedan 1992-1995 hydro no 3.25 1.761 1.066 0.852 0.702 0 0 3.25
Civic Si/EX 1992-1995 d16z6 hydro no 3.25 1.9 1.25 0.909 0.702 0 0 4.25
Civic VX 1992-1995 hydro no 3.25 1.161 1.066 0.853 0.75 0 0 3.25
Civic DX Hatchback 1992-1995 hydro no 3.25 1.762 1.172 0.909 0.702 0 0 4.058


Civic EX Coupe 1996-2000 hydro no 3.25 1.9 1.25 0.909 0.702 0 0 4.25
Civic HX Coupe 1996-2000 hydro no 3.25 1.761 1.066 0.852 0.702 0 0 3.722
Civic DX Coupe 1996-2000 hydro no 3.25 1.761 1.172 0.852 0.702 0 0 3.888
Civic EX Sedan 1996-2000 D16Y8 hydro no 3.25 1.9 1.25 0.909 0.070 0 0 3.722
Civic LX Sedan 1996-2000 hydro no 3.25 1.761 1.172 0.852 0.702 0 0 3.888
Civic DX Sedan 1996-2000 hydro no 3.25 1.761 1.172 0.852 0.702 0 0 3.722
Civic DX Hatchback 1996-2000 hydro no 3.25 1.761 1.066 0.852 0.702 0 0 3.722
Civic CX Hatchback 1996-2000 hydro no 3.25 1.761 1.172 0.909 0.702 0 0 3.888


Integra LS/GS/RS YS1 1990-1993 B18A cable no 3.166 1.857 1.259 0.935 0.742 0 3 4.4
Integra LS/GS/RS S80/Y80 1994-2000 B18B1 hydro no 3.23 1.9 1.269 0.966 0.714 0 3 4.266
Integra GSR 1994-2000 B18C1 hydro no 3.23 1.9 1.36 1.034 0.787 0 0 4.4
RSX 2001-2002 K20 hydro no 2.684 1.5 0.984 0.733 0.571 0 0 4.389
RSX Type S 2001-2002 K20 hydro yes 3.27 2.13 1.52 1.15 0.92 0.72 0 4.39
Civic Type R JDM Y80/S80 1995+ B16B hydro yes 3.23 2.105 1.458 1.107 0.848 0 3 4.4
Integra JDM type R S80 (Helical LSD) 1996+ B18C Spec-R hydro yes 3.23 2.105 1.458 1.034 0.787 0 3 4.785
Honda CRV 2002+ K24 hydro no 3.533 1.88 1.212 0.921 0.738 0 3.583 4.765
Integra Type R (JDM) Y1 1995-1997 B18C3 hydro yes 3.23 2.105 1.458 1.034 0.787 0 0 4.4
Integra Type R (USDM) Y1 1997-1998 B18C3 hydro yes 3.23 2.105 1.458 1.107 0.848 0 0 4.4
JDM Civic VTi (EG4) 1991-1999 D15B hydro no 3.25 1.9 1.25 0.909 0.75 0 3.153 4.25
Civic/CRX ZC cable no 3.25 1.944 1.346 1.033 0.878 0 0 3.888
del Sol VTEC S21 1994-1997 B16A3 / B16A2 hydro no 3.307 2.105 1.458 1.107 0.848 0 3 4.4

 

awsome info!

 

Does anybody know if the S80 for the ITR fits directly on an EG9? Do I need to use other driveshafts? Or is the S80 transmission bolt-on on the B16A2 and EG driveshafts?

Transmission for Euro spec ITR (DC2 B18C6):

S80, Helical LSD
1st: 3.230
2nd: 2.105
3rd: 1.458
4th: 1.034
5th: 0.787
Reverse: 3.000
Final Drive: 4.785

Transmission for Euro Spec EG9 (Civic 4 door B16A2)

Y21
1st: 3.230
2nd: 1.900
3rd: 1.458
4th: 1.107
5th: 0.875
Reverse: 3.000
Final Drive: 4.266

Thanks!
Pedro.


Modified by Soichiro Honda at 11:10 AM 8/14/2004

 

it will fit fine

 

Thanx!

 

so will any b series trans bolt up to any b motor??

 

Anyone know if the type r LSD fits into the ys1? I got the swap from H Motors, and its turbocharged but not running, Im feeling ill be in for a clutch and diff upgrade... lookin at options and the only budget minded one is the type r lsd or obx crap... any info would be great if anyone could pm me that be great. thanks