Jan in Omaha

Greetings,

I think I may be looking for a new transmission for my 92 Civic Si. I know there are a lot more EX cars out there than Civic and delSol Si's so I thought I might be able to expand my donor pool for parts. I've done some searching and I think I've got most of the info I'm looking for... but I still have a couple of questions.

It looks like the 96-00 Civic EX transmission also bolts right up to 92-95 Civic EX/Si engine. I've heard that to do this there are some lines that need to be moved/shifted? Is this a big deal or easy job?

The chart shows my 92 Civic Si has a 0.750 fourth gear and the 92-95 EX and 96-00 EX has a 0.702, I don't think that would make much of a difference other than indicating a mile/hour less than what I show now. ...but then I hear that the 96-00 sedan may have a 0.750 fourth gear as well. Any confirmation on that?

Is there any difference in the shifter forks between the 92-95 transmissions and the 96-00 ones (aluminum vs steel?)

Anything else I need to know before I start looking for parts?

5th Gen D-series Hydraulic Tranny Specs

Transmission Name Engine Counter Part 1st Gear 2nd Gear 3rd Gear 4th Gear 5th Gear Reverse Final Drive
P20/A000 92-95 Civic CX/VX D15B8/D15Z1 3.250 1.761 1.066 0.853 0.702 3.153 3.250
P20/A000 92-95 Civic DX/LX D15B7 3.250 1.762 1.172 0.909 0.702 3.153 coupe/sedan: 4.058
Hatch: 3.888
P20/B000 92-95 Civic EX D16Z6 3.250 1.900 1.250 0.909 0.702 3.153 4.250
P20/B000 92-95 Civic Si / 93-95 del Sol Si D16Z6 3.250 1.900 1.250 0.909 0.750 3.153 4.250
?? 92-95 JDM Civic VTi EG4D15B 3.250 1.900 1.250 0.909 0.750 3.153 4.250

6th Gen D-series Hydraulic Tranny Specs
Transmission Name Engine Counter Part 1st Gear 2nd Gear 3rd Gear 4th Gear 5th Gear Reverse Final Drive
?? 96-00 D16Y5 3.250 1.782 1.172 0.909 0.702 3.153 3.722
?? 96-00 D16Y7 Civic DX/LX/CX 3.250 1.762 1.172 0.909 0.702 3.153 coupe/sedan: 4.058
Hatch: 3.722
?? 96-00 Civic EX D16Y8 3.250 1.909 1.250 0.909 0.702 3.153 4.250


Thanks for any insight you can give.

Jan in Omaha

Anyone?

I hate bumping my posts but this forum moves so quick that it was already back on page 4.

EJeff8

D series trannys all bolt up fine. Obviously, 92-95 Ex/Si trannys are the same. And Ex trannys from 96-00 aren't a whole helluva lot different at all.

Look for a B000 tranny (Ex/Si trannies) but watch out because the 96-00 HX also had a variant of the B000.

94EG8

'92 - '95 Shift forks are aluminum, and have been known to break. '96 - '00 trannys used steel forks and the 3rd/4th fork is known to wear. Cases are different between the 2 because of the forks, detents are externally accessible on '96 - '00 trannys, they aren't on '92 - '95 trannys. Gears and syncros are interchangeable, sleeves/sliders for 3rd/4th aren't, can't remember about other gears.

As far as brackets and lines go simply reuse your clutch line and associate brackets off your original transmission, as well you will need to reuse the top transmission mount. If you want to make it easy simply unbolt the slave cylinder from the bell housing and swing it out of the way you wont have to bleed the clutch.

Jan in Omaha

Thanks for the info. It will definitely help me when I'm looking for a replacement. I think that I'll find lower mile units of the 96-00 cars than the 92-95, but I wanted to make sure that they would work in my 92 Si.

My car is being used for SCCA RallyX, so the next question becomes a "while I'm in there" issue. Since the transmission is coming out of the car, I think it would be an excellent time to add a LSD. I'm thinking Quaife but I don't know if there are any other alternatives.

Thoughts?

94EG8

Whatever you get you may want to pull it apart and check the bearings as well as gears, syncros and sleeves.

Would definately be a good time to add an LSD. Quaife or Mfactory. OBX is junk. You could also stick a '92 - '95 CX/VX 3rd gear in flipped over for a really low 4th gear if its going to be on the track.

Thoughts?[/quote]

titi_vtec

i have on my 98 ex one from a d15b7 with lsd original on it lol, it is a S20 tranny lol, and it work perfect on my car

EJeff8

^You have a gas mileage gear ratio. Hope you're not trying to race with it.

titi_vtec

why? i made like 28mpg, and i race sometimes, is that tranny bad for ma engine or for race? now i am worried

EJeff8

Well, no. It's just that a D15B7 tranny is a gas mileage transmission whereas An Ex tranny (D16z6, D16Y8) are geared for acceleration rather than gas mileage.

Aquafina

iTrader: (3)

92-00 bolt up the same.

92-95 slider IS interchangeable with the 96-00, just need to modify the fork.

96-00 is the better trans to use due to the steel forks. The aluminum forks in the 92-95 love to break.

96-00 EX gearing is almost the same as the 92-95, 96-00 2nd is 1.909 versus the 92-95 1.900. All 96-00 4th gears are the same (.909). All 96-00 5th gears are the same (.702). 1/2 and 3-4-5 gears can easily be swapped for ratios that best suit your needs if you can't run an aftermarket final drive or close gear set. I prefer the MFactory LSD over the Quaife due to it being stronger (forged versus billet) and having better runout.

titi_vtec

mmm... that interesting so i will find out some other tranny for ma engine bcause mine run nice but not like i want it, thanks for the info guys

Jan in Omaha

Thanks for the info!

Aquafina

iTrader: (3)

No problem. Need any additional help or parts just let me know.