Honda Manual Transmission Specifications & Gear Ratios

[darcane]

Originally Posted by California98Civic

I found a good source on the ratios for the 2003-2005 Civic Hybrid manual transmission and added it to the table in post 1. Was also able to get engine code, oem wheel sizes, and transmission code. Anyone know where to find a free copy of the Honda Factory Service Manual for the seventh gen Civic and for the Fit? The sites I found want cash or ask for credit card info in a sketchy way.

I don't know where you can find one for free...

But if there is specific info you need, I can look it up. I have a FSM for the '01-'05 Civic. I forget if it covers the Hybrid or not.

[California98Civic]

Originally Posted by darcane

I don't know where you can find one for free...

But if there is specific info you need, I can look it up. I have a FSM for the '01-'05 Civic. I forget if it covers the Hybrid or not.

If you can get the VSS speed specs for me, that would be a nice addition. The 4th, 5th, and 6th generation Civics have VSS that spin about 1,025 rpm to report 60 mph. Any info on the speedo gears in the trannys too. Anything that confirms or corrects the7th gen gear ratios. Any copy of the specs and service limits page (as I posted for the other generations) would also be a cool addition.

As for that link to a 7th gen civic running a 6th gen tranny you posted a few posts ago, I have seen it. Notice that the thread never concluded. the guy just went silent at a certain point during the process. I didn't find that very convincing. I don't think it proves the swap. You do for some reason?

Originally Posted by Sven7

Ok, so the obvious question is, how does one get a hold of an HF 5th gear, and which transmissions will it swap to? I have a spare DX hydro trans I'd like to build up. (Thanks for the info by the way!)

It would actually be the final drive you would be most interested in. Check carpart.com

[darcane]

Originally Posted by California98Civic

If you can get the VSS speed specs for me, that would be a nice addition. The 4th, 5th, and 6th generation Civics have VSS that spin about 1,025 rpm to report 60 mph. Any info on the speedo gears in the trannys too. Anything that confirms or corrects the7th gen gear ratios. Any copy of the specs and service limits page (as I posted for the other generations) would also be a cool addition.

Press release from Honda in 2001 that confirms gear ratios (except Hybrid, it wasn't offered yet).

I'll see what I can find on the rest.

Originally Posted by California98Civic

As for that link to a 7th gen civic running a 6th gen tranny you posted a few posts ago, I have seen it. Notice that the thread never concluded. the guy just went silent at a certain point during the process. I didn't find that very convincing. I don't think it proves the swap. You do for some reason?

Well, the fact that it doesn't run is irrelevant to whether the tranny will bolt up. The reason nobody does this swap is because the electronics on the D17 are a pain to get sorted out especially with the immobilizer. This was just one of many I've seen, and it had decent pictures of the two mated together where you could clearly identify the engine and tranny.

How about one (with pics) of the opposite:
2005 EM2 old school d-series swap
D16 with D17 tranny in an EM2.

[California98Civic]

Originally Posted by darcane

Well, the fact that it doesn't run is irrelevant to whether the tranny will bolt up. The reason nobody does this swap is because the electronics on the D17 are a pain to get sorted out especially with the immobilizer. This was just one of many I've seen, and it had decent pictures of the two mated together where you could clearly identify the engine and tranny.

How about one (with pics) of the opposite:
2005 EM2 old school d-series swap
D16 with D17 tranny in an EM2.

That's one that I did not see, but it's a D17 tranny (shorter gearing) on the D16 engine. That's not the most desirable swap, from the EM perspective. So, clearly it does bolt up, but the purpose of this thread is to help people identify swaps for EM purposes, so although this one bolts up the shifter differences and the electronics make adapting one of the taller-geared transmissions, such as the 92-95 VX/CX to a newer D17 engine relatively complex.

Thanks for the input. I adapted the OP.

Oh! I have seen that press release already. It is part of what I cited in sources. But I was hoping you might be able to get the VSS info and/or speedo gear info from the FSM you mentioned.

[darcane]

Looked for a while but couldn't find anything on the VSS ratio. Here's the specs/limits for the manual tranny from my manual as well as the page on the gear ratios.



(sorry for the crappy scan)

I can e-mail higher res pics or zoom in on the important bit if you'd like.

[California98Civic]

Originally Posted by darcane

Looked for a while but couldn't find anything on the VSS ratio. ... I can e-mail higher res pics or zoom in on the important bit if you'd like.

Thanks for looking and for the PM and the email with the higher res images. I have added the higher res versions to the OP. Thanks!

[tony_2018]

Just a heads up. Honda will be implementing 8sp DCT (Dual Clutch Transmissions) into there cars. We probably won't be seeing them until 2015-16. It seems they've been testing it out for awhile an will introducing them, including there turbo line up (1.3l turbo, 1.5l turbo, 2.0l turbo) in the following yrs. At the time I read it they had a v6 honda accord with the transmission for testing and the editors seem to like it. This really sounds promising.

[some_other_dave]

Interesting. I wonder how it's different than the ones VW and Porsche use? Honda has a major case of NIH ("Not Invented Here") and they are usually very reluctant to use someone else's technology. And pay royalties, of course.

-soD

[PaleMelanesian]

They're putting a 7-speed DCT in the Fit hybrid, Japanese model. It may be in production already. If it's not, it will be soon. Not for USA consumption, though.

Actually, give me a manual any day.

[tony_2018]

Originally Posted by some_other_dave

Interesting. I wonder how it's different than the ones VW and Porsche use? Honda has a major case of NIH ("Not Invented Here") and they are usually very reluctant to use someone else's technology. And pay royalties, of course.

-soD

At least they did try to make an attempt and failed so they outsourced it. Clutch packs just don't do it no more, or never did.