4EAT Compatibility? 97 BG Outback

Phizinza · Post by **Phizinza** » Tue Feb 04, 2014 6:56 pm

What autos will bolt in with no mods and work in a 97 Outback with a EJ25 DOHC motor?

Thanks,

Gannon · Post by **Gannon** » Tue Feb 04, 2014 8:33 pm

An auto from a 94-97 Outback would give the right ratio, an auto from a Liberty or Impreza up to 97 should bolt up and work with the TCU.
Later autos with the external oil filter use a completely different TCU control setup

niterida · Post by **niterida** » Tue Feb 04, 2014 8:59 pm

I've got an early WRX VTD Auto for sale - anybody know if that would work with the 97 Outback.

Gannon · Post by **Gannon** » Tue Feb 04, 2014 9:39 pm

It would bolt in and would mostly work with the outback TCU, not sure if the diff ratio would be correct though. Gen2 Outbacks were 4.111 I think

The FSM says the output waveform is opposite to the DutyC solenoid is opposite in the VTD compared to that of the MPT. This was a Gen3 FSM, but the diffs are constructed the same, bar the ratio
Matching VTD TCU would fix this

vincentvega · Post by **vincentvega** » Wed Feb 05, 2014 9:08 am

the outback is 4.44 and the WRX box in question is 4.11

the wrx is also VTD (can be made to work easily but not wiht "no mods") whereas the outback box is MPT