satan_srv

Your fearless moderator has come through with the code we've all wondered about but never knew. Drum Roll please....

M2Z4

Yup, that's it, follows the naming convention adopted in the 4th gen models where the LSD model gets the next letter.

So, I think our list is finally complete..I'll just list all the H22a trannies that I know of here for fun

Prelude

M2A4 - JDM 4G
M2B4 - JDM 4G LSD
M2F4 - USDM 4G
M2U4 - JDM 5G Type-S ATTS/USDM Type-SH ATTS
M2Y4 - JDM/USDM 5G Base
M2Z4 - JDM 5G SiR S-Spec/JDM 5G w/ LSD option

Accord

T2T4 - JDM Accord SiR-T (F20B) LSD
T2W4 - JDM Accord Euro-R LSD
U2Q7 - EDM Accord Type-R LSD

Satan owns.

Added 2004/02/09 Full Gear Ratios

M2A4 - 3.307 - 1.950 - 1.360 - 1.071 - 0.787 - 4.266
M2B4 - 3.307 - 1.950 - 1.360 - 1.071 - 0.787 - 4.266 LSD
M2F4 - 3.307 - 1.950 - 1.360 - 1.071 - 0.870 - 4.266
M2U4 - 3.285 - 1.956 - 1.344 - 1.034 - 0.812 - 4.266 ATTS
M2Y4 - 3.285 - 1.956 - 1.344 - 1.034 - 0.812 - 4.266
M2Z4 - 3.285 - 1.956 - 1.344 - 1.034 - 0.812 - 4.266 LSD

Accord

T2T4 - 3.285 - 1.956 - 1.344 - 1.034 - 0.812 - 4.266 LSD
T2W4 - 3.285 - 2.090 - 1.481 - 1.071 - 0.812 - 4.266 LSD
U2Q7 - 3.285 - 2.090 - 1.481 - 1.071 - 0.870 - 4.266 LSD

OTT

Was JDM 4G LSD the 220bhp version?

Cottonwoodz

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by OTT &raquo;</TD></TR><TR><TD CLASS="quote">Was JDM 4G LSD the 220bhp version?</TD></TR></TABLE>

No, 220Hp 4th gen...

satan_srv

what he said there is no 220hp 4th gen...the LSD tranny was just an option it didn't come on a specific model

BolivianFuego

NIZZEE

luda_crs_9398

Which tranny offered the closest gear ratio? say the best for drag racing? and which one had the highest gear ratio for top speed? just curious b/c i want to do a tranny swap this summer and i have yet to figure out which one is the best for certain set-ups. I have h23/h22 frankenstein in my 93 lude.

thehondaguru

I want one!!!! Where can I find one???

skunk2lude01

Good luck, I looked for one the whole time I had my lude and only found type-s. And if you do find one prepare to pay 2k plus.

pentaq

Well, Joel you forced me to review an European Honda EPC, so I can list all the trannies met in euro ludes. Truly speaking I don't know which one comes with LSD, but I think I can add some info to your list.
Below tranny codes (manual) for 2.2 VTEC engines met in Europe.

M2F5- 4 gen
M2X5- 5 gen VTi S 1997
M2V5- 5 gen VTi 1997
M2P4- VTi 1999
M2R4- VTi S 1999&lt;-updated

and of course U2Q7 from ATR (yummie- I love it )
greetz


Modified by pentaq at 4:05 PM 2/9/2004

Cottonwoodz

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95 lude &raquo;</TD></TR><TR><TD CLASS="quote">I want one!!!! Where can I find one???</TD></TR></TABLE>

H-Motors had one, but somebody snatched it up..........

Nick M

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by OTT &raquo;</TD></TR><TR><TD CLASS="quote">Was JDM 4G LSD the 220bhp version?</TD></TR></TABLE>

there is no 220hp prelude, the highest rated version was 220ps

we've told u this before

H22A EG6

good info

Jesus_FR

Joel, with your permission i'm copy/pasting this info on our french Prelude national club forums.
there:
http://prelude.jpcar.net/forum...#5703

satan_srv

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jesus_FR &raquo;</TD></TR><TR><TD CLASS="quote">Joel, with your permission i'm copy/pasting this info on our french Prelude national club forums.
there:
http://prelude.jpcar.net/forum...#5703
</TD></TR></TABLE>

go nuts dude!


edit: I made a coupe updates, adding LSD where needed and I posted full gear ratios!

KCHybrid

What about part numbers for all of these?

Either way great list!!

2trix

where can i get an oem lsd diff!? i know they arent available anywhere in the us... where can i order one? just the oem lsd...

flyrod

I don't think the M2B4 ratios are quite right. I got one just for the taller 5th gear. This is what they shoud be:

M2B4 - 3.307 - 1.950 - 1.360 - 1.034 - 0.787 - 4.266 LSD


I had the sucker apart and counted the teeth on the gears. So I know this is right for my M2B4 anyway. This is also in the prelude specifications and stats thread...

dustywebber

SO which tranny would you say is the best to buy...

I ve been researching the atts and the lsd models mostly.
Im going to dro abot $1500 on a tranny maybe alittle more.

just out of curiousity which would you buy?

BlacktraxGirl

I have an M2A8 tranny here...i was wondering if anyone knows what engine this tranny belongs to.

to add to the list...

M2S4 is a 96 H23 tranny.

satan_srv

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlacktraxGirl &raquo;</TD></TR><TR><TD CLASS="quote">I have an M2A8 tranny here...i was wondering if anyone knows what engine this tranny belongs to.

to add to the list...

M2S4 is a 96 H23 tranny.</TD></TR></TABLE>

Yeah this is just a list of H22a trannies though...the FAQ has the H23 and F22 trannies.

As for M2A8...is it clear the code? maybe it's M2A4? Otherwise I haven't heard of it...but it's prelude because of the M, and it's nearly M2A4 so I would make the assumption it's very similar to the M2A4/M2F4

kotetu

https://honda-tech.com/zerothread?id=758902

2point6 has different JDM prelude gear ratios listed:
M2B4 (JDM LSD). M2J5 (JDM). M2A4 (JDM)

1. 3.307.......... 1. 3.307.......... 1. 3.307
2. 1.950.......... 2. 1.810.......... 2. 1.950
3. 1.360.......... 3. 1.269.......... 3. 1.360
4. 1.034.......... 4. 0.966.......... 4. 1.034
5. 0.787.......... 5. 0.787.......... 5. 0.787
FD 4.266......... FD 4.062.......... FD 4.266
*Above info taken from teardown and tooth counts.


Anyone know what this is trying to tell me?

http://www.housemanautosport.c....html

It has shift RPM and max speed, but I'm not sure if houseman is suggesting shifting there or what. Doesn't seem to make sense.

satan_srv

looks like jdm trannies may all have a long 5th..

anyways on the page you posted. Shift rpms means where you end up in rpms after you shift given the gear ratios

98TypeSH

you can get an M2B4 tranny anywhere from 800-1000, for the person stating they were going to drop 1300. you cant do an atts tranny conversion without an atts block. ill sell u my block and tranny lol i hate it, cant wait till i can throw it off the roof. good luck with that one.

kotetu

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by satan_srv &raquo;</TD></TR><TR><TD CLASS="quote">looks like jdm trannies may all have a long 5th..

anyways on the page you posted. Shift rpms means where you end up in rpms after you shift given the gear ratios</TD></TR></TABLE>

I got it now, thanks. Hrm, VTEC engages at 5500 stock? I guess that means you will drop out of VTEC when shifting into 3rd gear at 7400rpm. owch.

Spocko

Personally I think the best H22 tranny out there is the T2W4 LSD. It offers almost the highest 1st gear &gt; then 2nd, 3rd and 4th are higher than rest (except the U2Q7), but finishes with a lower 5th to save fuel on the highway. Plus has LSD. For all out performance though, I think the U2Q7 notches even this one out a step due to it's higher 5th gear. Personally I use 5th to conserve fuel in city and like to get best HWY MPG possible, so I vote for the T2W4. Only wish it had the 3.307 first gear ratio &gt; then there would be no better (well again unless the U2Q7 also picked it up as well performance wise

T2W4 - 3.285 - 2.090 - 1.481 - 1.071 - 0.812 - 4.266 LSD
U2Q7 - 3.285 - 2.090 - 1.481 - 1.071 - 0.870 - 4.266 LSD

Bottom line &gt; good luck trying to find either of these #1) for cheap and #2) separate from a motor/tranny swap package deal. (I know, I tried to find one alone but had to buy the motor with it.) But hey, I'm not complaining considering it was mated to the Type-S H22 engine c 220 hp!