Prelude/H-series Transmission Codes and Ratios master-list
 

Another chart brought to you by Kronn.


Attachment 471568
Attachment 471569
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Keywords: H2A5, H2C4, H2S8, H2U4, H2U5, M2A4, M2A5, M2B4, M2C4, M2F4, M2F5, M2J4, M2J5, M2K4, M2L5, M2P4, M2R4, M2S4, M2T4, M2U4, M2V5, M2X4, M2X5, M2Y4, M2Z4, N2C4, N2D4, N2E5, N2S4, P2A4, P2A5, P2A8, P2C4, P2U5, S2A4, S2A8, T2C5, T2T4, T2W4, U2G5, U2J4, U2L4, U2N4, U2Q7

Re: Prelude Tranny Codes & Gear Ratios
 

FAQ worthy?

Re: Prelude Tranny Codes & Gear Ratios
 

If anyone sees anything that they know for sure to be wrong, would you please let me know so I can correct it? OR, if you have any information to fill in the gaps, please let me know.

Re: Prelude Tranny Codes & Gear Ratios
 

Bumping so that everyone is aware that this thread has been added to the faq's. Thanks for the great work Kronn. :thumbup:

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

what if the sticker is gone how can i tell what transmission it is???please help

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

PPG dog box ratios (H- series)
3.0
1.917
1.333
1.045
FD. 4.2 or 4.4

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

still looking for info on tranny code "H2J4" Jdm Accord or Prelude? This is a ghost trans..

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

Starting with an H, that automatically means it's not a Prelude tranny. Obviously, Preludes start with M.

Where did you hear of this H2J4?

EDIT: After a bit of research, I've found that the H2 prefix was used in 90-93 Accords.

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

It's probably an Accord F20/F22 transmission, but we're not dealing with those here [if they're not used with an H22].

If the trans is out of the car, use this to determine the ratios.

How to: determine tranny gear ratios without counting teeth by PirateMcFred

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

well it was sent with my JDM H22 swap, I've gotta tell ya, i'm rather disapointed.

So we're going with F22B SOHC trans?

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

No idea. Find out the ratios and see how bad the situation is.

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

now we just need a list of hybrid ratios people have tried by swapping gears 1-5 around and reactions of how the outcome was...

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

Very good! Also, I do believe M2F4 = '93 (not '92). Easy mistake.

Edit: Okay another thing...Some of those Prelude models debuted in '91 in Japan so some of those trans codes have the wrong time span by a year. I'll look into it when I'm off work.

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

how can i tell with out the sticker being on

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

Well, I'v actually got a buddy with F22 Trans & H22, and mine definitely has shorter gears. Same thing with anyother buddy with H23 Trans & H22. Shorter Gears. So Apparanently It's not that bad, But I'm still curious as to what it is.

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

do you know if the numbers stmped above the axle are different on the h22 and h23

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

not one person on honda-tech knows what is stamped on a h22 transmission above the axle in the webbing??? some one with a h22 prelude please look for me

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

Updated with the JDM 5G Prelude Xi/Si tranny code "M2A5". Information courtesy of Howlinator on PP.com. Apparently he's either the only guy online that owns an Xi or the only one with enough courage to admit it.

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

i was wondering if mixing and matchin can be done w/ these tranny's. I'll be picking a beater f22a while i save up for a better motor. there is a m2b4 and a t2t4 fs and im unsure which will give me complications if any. BTW where can i read more about gear ratios?

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

All transmissions listed are 100% plug-n-play with the exception of the ATTS transmissions. What more do you want to know about gear ratios?

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

i guess it's fundamental knowledge.

I was curious why gear ratios vary but are very similar when compared to the transmissions and what the ratios actually mean?

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

wikipedia

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

i have a ghost trans too..... i need help we just got the swap from jdmtigerjap either way it says "MPOA 4013661"... then asome other random sticker said "VPON 15"

i know its automatic but i want to know what its from....

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

No manual....no matter....no care.

Re: Prelude/H-series Transmission Codes and Ratios master-list
 

Does anyone import the M2P4 or M2R4 trans, or know where I could order those EDM parts? I'm not so much interested in the entire trans as I am the mainshaft and 1st & 2nd countershaft gears. :)