Australian D-series gearboxes and there ratios.

[nzjdm]

Hey Guys, my mind is currently melting with info on d-series gearbox ratios. the problem is that most information is in the US.

Do any of you know the ratios (specifically) final drive of the australian D-series gearboxes and the cars they were fitted to factory ADM.

looking at cars from 1987-00

This is for a d series race car it is not being converted.

Regards Marc

[beeza]

Yes if someone has a link to a list that would be great,I am yet to find one.

I can share with the d16 that the y8 has a slightly better FD than the y4 but it's negligible. The d16y4 gearbox with the lower/better gear ratios has B00000 stamped next to the vss (vehicle speed sensor,where you pour transmission fluid in).The other y4 is stamped A00000.

[nzjdm]

Do you know the final drive of the Y8? and what car it is normally in? i could make a y4-y8 hybrid. but i need to know actual numbers.

cheers

[beeza]

y8 specs - S40-K4F hydro

1st - 3.25
2nd - 1.909
3rd - 1.25
4th - 0.909
5th - 0.702

Final - 4.25



Y4 box

1st 3.250
2nd 1.909
3rd 1.250
4th 0.909
5th 0.702
Final 4.058

[beeza]

Pretty sure the y8 was in 6th gen civic coupe vti maybe others. Ryan will know :)

[nzjdm]

the y8 4.2 would be a decent improvement on my 3.8 ill check it out.. if anyone else does have any more light please do share!

im quite confident i currently have
1st 3.250
2nd 1.894
3rd 1.259
4th 0.937
5th 0.771
R 3.153
fin 3.880

So if i was to swap the 4.25 final from a y8 i think id be getting a decent improvement similar to the VTI box.

I am cable clutch fitted to ED6 so cant run the y8 box complete, but dont see the benifit in running the y8 gear set anyhow unless im missing something?

I do see i could have a slightly shorter 2-3-4 but the difference is marginal.

[markismaximus]

If you're running a L3 cable box I would be surprised if the final drive from a later model would suit. Best bet is to look for a ZC JDM box and use that gearset with your 4.25 FD in your ED box. This is what I had in my ED6 with D16Y1.

If you look back through my ED6 build thread from about 6 or so years ago there are a few posts about the hybrid box I put together

[markismaximus]

http://www.ozhonda.com/forum/showthread.php?125120-Another-ED-build/page12

It's the last post I made strangely enough