AUS ED6 Which final drive??

[shake]

Hey guys,

I've been searching and can't find which final drive comes in the Australian ED6 Civic 5 speed gearboxes. I know that the ZC has a 3.888:1 and the US Si has the 4.2:1. Has anyone checked / know for sure.

Thanks

[pat88c]

I pretty sure the ed6 has 4.2 fd these a few thread on here of people who done a hybrid box

[u mad?]

3.8 fark must feel groce as fuk

[dougie_504]

Pretty sure it's the 4.266. Thought it was the same for the ZC too.

[chargeR]

Hey mate, I opened up my gearbox today to check the ratios. It was out of a 1988 ED6 hatchback, 21 spline input shaft and it had a 200mm diameter clutch disc on it. Marked L3-1237342. As you can see it has the 4.25 final drive and ratios are identical to the US Si Civic of the same generation.

[pat88c]

thanks chargeR

[dougie_504]

So I was 0.16 off

Nice post though chargeR

[shake]

+1 for you!!

According to the US sites the ZC DOHC is as below:
3.25
1.944
1.346
1.033
0.878
with the 3.888 FD.

So I can swap the 4.25 fd from my ED6 into my ZC box, nice.

[shake]

JDM ZC BOX kmp/h @ 7200rpm
62
103
149
194
228

AUS ED6 BOX kmp/h @ 7200rpm
56
97
145
195
237

JDM ZC BOX (w/ED6 FD 4.25:1) kmp/h @ 7200rpm
56
94
136
177
208

[pat88c]

Hey shake
you planning to swap over the FD into your zc box?

should put Mfactory Lsd and low 3.08 first gear

should jump on Mfactory for look

[chargeR]

Happy to help. The ZC 1-5 with the ED6 FD looks like a nice combination, I've been thinking of doing that myself.

[markismaximus]

check out my build thread post #480, I have done this swap and also have a link to a very comprehensive DIY in my thread.