Prudz_lude

iTrader: (1)

I own a 1993 h22a1 with a m2f4. Second gear is as good as gone and reverse seems to be going as well. So this off season i am researching what new transmission i should get. Im no whiz when it comes to cars as i am going into my second year of learning about cars and i know i have much to learn. So hopefully fellow luders can help me understand gear ratios because that is what im focusing on when i purchase my new/used transmission. I kept reading that the gear ratios for the m2b4 were the best and that is the transmission to try and get if your going N/A (which i am) I was told they are the shortest which is best for N/A and turbo you want the longest so the h23 tranny is the best for turbos

I posted the following ratios from the facts thread. when i look at the 4th gen vtec transmission (m2f4) the ratios are the same through 1-3, its the 4th and 5th where the change occurs. What makes these ratios so much better? Is there really that big of an advantage or difference?

I know that the m2b4 has an lsd but i am wondering if i can get a used transmission with these gear ratios without an lsd so i can just buy a quaifie lsd and have that installed. In my city m2b4s are going at about 1200-1400 so im hoping to spend the 1g on the quaifie and buy a used tranny for about 600 or so. I figure better lsd and its brand new.

If you guys could help me out by helping me understand what the ratios mean, and which transmission i should buy or what i should do i would really appreciate it. thanks

4th Gen
H22a/VTEC
M2F4
1 - 3.307
2 - 1.950
3 - 1.360
4 - 1.071
5 - 0.870
Final - 4.266
*Above info taken from USDM Helms manual.

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. 1.160
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.

5Gen:

1st 3.285
2nd 1.956
3rd 1.344
4th 1.034
5th 0.812
FD 4.266

Prudz_lude

iTrader: (1)

Somebody? Anybody...

roller3804

well depending on what kind of setup you are wanting to run, you are going to want the shortest gear ratios for NA. Which means you would want to get a final drive of like 4.7 or 4.9. That means a lower top speed but alot faster accelleration. If you plan on boosting I think that the 4th gen tranny is excellent. But keep in mind that also means worse MPG because in 5th cruising on the highway you are gonna be at higher rpms, its great for accelleration cause if your going 80 u can just tap it and it gets up very quickly. Its what I run and I love the ratios. A bit to long for NA i think but for boost MMMM MMMM BITCH.

Anyways as far as what the ratios mean, the larger the number the shorter the gear is. Meaning that 1st gear on an M2f4 which is 3.307 is faster reving than the 5thgen first gear or 3.285. Its not a ton of difference but its different.
Notice how all the 4th gear ratios are close to 1.0
This means that its the closest to the most accurate representation of power. Which is why alot of people dyno in fourth gear. If I were you I would just get an m2b4 or m2a4 because they are alot more available. LSD is nice but if your not gonna be autocrossing and what not its not that big of deal. Plus you can always get a better LSD anyways later on if you really end up wanting one.

Prudz_lude

iTrader: (1)

Thanks you so much for the info. I just read some more and found that the m2a4 is the same as the m2b4 but without the lsd. Thank you for explaining the meaning of the ratios as well. I think i will start searching for an m2a4, drop a quaifie lsd in it, along with my new exedy clutch and fidanza flywheel. Should have a killer transmission when its all done. What would you suggest having done to a used transmission when i buy it. What should be replaced if anything at all.

Also how much does an m2a4 go for? As well if anybody has one could you post it in this thread?

roller3804

I would suggest finding a used tranny for really cheap. Then sending it to http://www.gear-speed.com then get carbon coated syncros and a oem rebuild. That is an amazing tranny.

94Vtecluder

The tightest geared tranny is the Accord Euro R tranny. The code is T2T4 or something like that check the facts. It's best for NA due to the close gear ratio, you'll keep you rpm's higher when you shifting putting you into your peak power.

Prudz_lude

iTrader: (1)

does the accord euro r tranny fit perfectly with an h22a1? And thank you soooooooooo much for the gearspeed website link, Transmissions for the price i am looking at and they can put the quaifie lsd in when i buy it and ship it out to me and it would cost about 2gs which is what im looking at spending. Thank you so much.

With gearspeed do you pick a transmission you want eg. accord eure r or m2a4 they install what type you want sort of thing like their packages deal they advertise and then ship it out to you? I couldnt really tell if you choose the tranny code or not i assume you do. Little help with this would be pretty much it.

94Vtecluder

All of these trannies will fit.

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

roller3804

You would ship your tranny core to them and tell them what you want done. What kind of setup are you wanting to run anyways? NA or Boost?

Prudz_lude

iTrader: (1)

i am N/A and plan on staying N/A because i am going to uni next year and do not want my car to break down on me while i am attending. or at least not until 3 years in or so if it does. My transmission and a small front end repair are the only two things left for my lude to get it 100 percent again. I have a m2f4 right now. i dont want to shell out extra money really to buy a new transmission if that price at gearspeed does not include a new/used tranny i would prefer to just take out the one i have now and send them that one and have them rebuild it. Good idea or no?

Prudz_lude

iTrader: (1)

looking at the ratios buying a m2a4 is pointless because i have the same ratios. should i stick with the one i have and do as i posted above?

roller3804

stick with the one you have. Send it to gearspeed and get carbon coated syncros and a OEM rebuild. Then get them to put a 4.9 or 4.7 final drive in it . As heavy as ludes are you need all the help you can get with gearing.

Prudz_lude

iTrader: (1)

thanks, i am going to keep the one i have and get the carbon coated syncros and the oem rebuild. Unfortunately the final drive ratio is another 1000 dollars which is money i do not have. Like i said 2gs is the budget i get to play around with and 3000 is to much for me at the time. maybe when im done uni haha

Prudz_lude

iTrader: (1)

acutally going by the pricing it comes to just over 2 thousand dollars with the final drive ratio. I will call them sometime nextweek and ask about pricing from where i live and what i want to do and see how much it will all cost with shipping. Thanks to everyone for the info and help. You've helped me know a bit more and made me a little less of a newb

roller3804

no problem man. Thats what this place was meant for in the beginning.
good luck with the tranny and keep us updated

Prudz_lude

iTrader: (1)

Your probably not going to hear much from me until april/may. This thread has finally explained everything i wanted to know, given me a great place to get a great build on a tranny rather than some shady shop in my city where the cost would be the same if not more for cheaper quality parts and most likely no warrenty. I'll create a new thread on the transmission some time in spring. Thanks once again. s up to everyone in this thread

mgags7

You should be able to build a trans with an lsd and a 4.7 final drive for around $2000

Use an oem LSD (pick one up in the classifieds on here), and use an mfactory 4.64 final drive...

Prudz_lude

iTrader: (1)

Another question, what is a final drive ratio or the best one that i would be looking to get?

M@

I'm only going to put in my 2 cents because its different then everyone else.

With the exception of 1-2 shifting its pretty easy to stay in vtec. While I understand closer ratios keep you in a better power band, I don't mind downshifting to get into power. With that said. I cruze 80-90 alot and thats like upper 4's. If I do need a new tranny I'll be getting an H23 just to save RPM, and gas.

So keep in mind the trade-off, which it sounds like you have. It will be bad *** if you get LSD no matter what.

M2B4

yeah go with lsd. finally driving around in mine i love it

Prudz_lude

iTrader: (1)

ill let you all know how it all goes in spring like i said but could someone please answer my above question?