marcucci

OK... I know that just about all the D series transmissions have interchangeable internals... what about other Hondas? What final drive/countershafts and differentials are interchangeable? Does anyone know if there are any similarities with B series or other Honda transmissions? I have looked for this and not found any info...

RyanEJ8

The B and D series tranmission internals are not interchangable. Now some of the different D series trannys have interchangable parts. I think Mista Bone's web page has some info. http://home.cinci.rr.com/mistab0ne/tranny.html

The Internet Tough Guy

most d series parts will interchange, but not all. b is out of the question.

this is what you want. i spend a whole week nonstop researching this.
96-00 dx tranny. yes dx, not ex.
zc 3rd, 4th gears. maybe zc 5th, but if you do a lot of highway driving go with the crx si 5th, or just leave your's go.
srr 4.7 or 4.9 final drive - matter of preference.
quaife lsd.
good clutch and flywheel.


that linke to mista bone's page is very valuable.
if you'd like, i could dig up the post i made on elsewhere with all the numbers.

marcucci

I have read all of Mista Bone's stuff, yes, it's great.

I don't care about interchanging TRANSMISSIONS but rather gears. I know that the H series trannies share some bits with some the F and even B series and some oddballs that you wouldn't normally expect.

My interest in is a final drive and LSD, which aren't exactly common for the D series.

Edit: Looks like I found (at least most) of my answers on http://www.exospeed.com - I hadn't found p/ns or applications lists for final drives or diffs before. Looks like the 88-99 CRX/Civic share differentials (except for the bastard 90-91 Si) and no others... but the final drive/countershaft are different from the B16, B18, D16A/ZC, and 92-00 S20 trans.

Thanks for the feedback...


Modified by marcucci at 6:49 PM 2/25/2004

The Internet Tough Guy

you can't take gears from anything but a D tranny ... as far as i know
it's very unlikely that you could use something else from a F / H / C whatever.

zc 3rd and 4th gears are nice and short. (but damn hard to find...)
quaife makes a nice lsd, srr makes final drives. the 90-91 si has 35mm diff bearings, where most other D trannys have 40mm bearings. weird huh?

i'm almost 100% that you can't use a crx fd in a 5th or 6th gen tranny. ats is crazy expensive anyway.

check it out. the ultimate D series road racing tranny.
begin copy and paste

step 1: find 96-00 DX (yes dx, not ex.. more on this later) tranny in good condition:

1-5: 3.250, 1.762, 1.172, 0.909, 0.702 final: 4.058

this is with 205/50-15 tires, and 7000 y8 rpm redline.
shift points: 36, 67, 101, 130, 169 <- top of 4th & most of 5th is useless.
rpm drop: 3700, 4600, 5400, 5400

step 2: quaife lsd

step 3: 4.9 SRR final drive from http://www.exospeed.com
shift points: 30, 56, 84, 108, 140
rpm drop: same as above

step 4: ZC 1.346 3rd, 1.033 4th gears.
1-5: 3.250, 1.762, 1.346, 1.033, 0.702 final: 4.9
shift points: 30, 56, 73, 95, 140 <-still useless
rpm drop: same as above

step 5: CRX Si/dx 0.771 5th gear (zc is even a little shorter)
1-5: 3.250, 1.762, 1.346, 1.033, 0.771 final: 4.9
shift points: 30, 56, 73, 95, 127
rpm drop: same as above
highway crusing: 70 mph = 3900 rpm (not too bad...)

why the dx tranny? first, easier to find, and cheaper. that's a big plus. but more importantly, with the 3rd, 4th, 5th, final swaps, 2nd gear is the only difference from the ex tranny. and it's actually a good difference to have.

ex with 1.900 2nd, hybrid 3,4,5 & 4.9 final:
shift points: 30, 52, 73, 95, 127
versus dx : 30, 56, 73, 95, 127
rpm drop : 4000, 5000, 5400, 5200
versus dx: 3700, 5300, 5400, 5200

so it's a tradeoff: drop 300 lower into second, but 300 higher into third. sounds very very good to me. and hell with more revs, you'll shift into vtec in 3rd, 4th and maybe 5th gear!! just need a little torque from 3700 up in 2nd to pull out of the corner.

i got this plan from the great mista bone: http://home.cinci.rr.com/mistab0ne/tranny.html. i have that page memorized by now - i've been obsessed with this all day.
gear calculator: http://www.f-body.org/gears/

end copy and paste.

a little similar to a type r tranny isn't it

civicboisi

SWEET....is this set-up good for everyday driving too? Like with harsh driving conditions so on and so forth?

SaveD!

BauleyCivic

Or you could be cool like me.

Stock DX - 37 - 68 - 102 - 132
EX Trans - 35 - 60 - 91 - 126
20” Tires - 32 - 60 - 90 - 115
4.7 FD in DX - 32 - 59 - 88 - 114
4.9 FD in DX - 31 - 56 - 85 109

EX w/ 175/50/13 tires- 31 - 53 - 80 - 110
JDM ITR - 35 - 54 - 77 - 109

The Internet Tough Guy

yep. 20" tires is a huge bang for the buck mod.

or

you could be even cooler, and do all that stuff i posted (don't forget the lsd) , with the 175/50-13:
26 48 63 82 109 looks like it's missing 6th gear

BauleyCivic

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jwn7 &raquo;</TD></TR><TR><TD CLASS="quote">
you could be even cooler, and do all that stuff i posted (don't forget the lsd) , with the 175/50-13:
26 48 63 82 109 looks like it's missing 6th gear</TD></TR></TABLE>

Mista Bone

on the 88-00 trannys, the ring gears are interchangeable, but the countershafts are not.

The 88-91 countershafts are about 6mm shorter than the 92-95. Plus the 3-4 synchro hub is reversed between the two trannys. This is why the ZC 88-91 4th gear into a 92+ tranny needs ground, to clear the synchro hub.

But, If you paid attention, noticed I said the synchro hub reversed on the newer trannys..............

So you can take a 4g HF 3rd gear (1.033) and use it for 4th in a 5g tranny, without having to do any grinding.

Also, ZC 3rd and 4th gearsets are not that hard to come by............

$75 shipped got me these beauties........from Europe!!!!!!!!!



I know have 3 sets..........

The Internet Tough Guy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mista Bone &raquo;</TD></TR><TR><TD CLASS="quote">Also, ZC 3rd and 4th gearsets are not that hard to come by............

$75 shipped got me these beauties........from Europe!!!!!!!!!
</TD></TR></TABLE>

yeah i saw that. he posted that two days after i picked up the gsr swap. you're lucky i'm a sellout

marcucci

I these are so easy to get I will gladly give anyone $100 for a set!!! I have yet to find the tranny or gearset for sale anywhere cheap.

Here's another question for you gearheads. In the UK there was a model of the Civic/CRX from 90-91 sold called the 1.6i VT (VT = VTEC). It was sold with the B16A from what I have read. The ratios were something incredible:

1st - 3.250
2nd - 2.052
3rd - 1.416
4th - 1.103
5th - 0.870
Final - 4.133

I have a contact in the UK that can probably get me these gears. I know the engine is a B series, but it will be a cable tranny from a D-based chassis... what are the chances that these gears would work? I'll look up the p/ns and see if the 1st gear (same as USDM models) is the same, that will be the clincher if it is.

BauleyCivic

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by marcucci &raquo;</TD></TR><TR><TD CLASS="quote">I know the engine is a B series, but it will be a cable tranny from a D-based chassis... what are the chances that these gears would work?
</TD></TR></TABLE>

None.

marcucci

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BauleyCivic &raquo;</TD></TR><TR><TD CLASS="quote">

None.</TD></TR></TABLE>

Care to elaborate? What code tranny did the EE8 VTEC chassis have? Do you know this particular unit is not compatible, or are you going off the general knowledge that B series trannies are not compatible?

I ask b/c I haven't seen anyone mention this chassis/tranny (either good or bad) with respect to the D series.

BauleyCivic

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by marcucci &raquo;</TD></TR><TR><TD CLASS="quote">
or are you going off the general knowledge that B series trannies are not compatible?
</TD></TR></TABLE>

Mista Bone

JDM B16 engine and tranny combo, we never get the good toys.

B's and D's not mix.

RyanEJ8

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mista Bone &raquo;</TD></TR><TR><TD CLASS="quote">JDM B16 engine and tranny combo, we never get the good toys.

B's and D's not mix.</TD></TR></TABLE>

This man doesn't go off of "general knowledge," he knows.

Mista Bone

the best knowledge is learned the hard way.........

ya fock up a few trannys, figure out what/why/how.

Then figure out HOW to prevent disaster from happening.

Big Money D

will the 96-00 trannys bolt up to a jdm d15b??