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I am, and have been for years, waiting in eager anticipation for someone to crack the TCU and then we can really start to have fun. I think that a combination of revising the map for the duty c solenoid and shift map will make the car really come alive. The only problem I worry about with modifications to the transfer map like is increased clutch wear if we increase the rear bias too much. I hypothesize that this is why it is conservative from the factory. With Subaru's overall goal of preventing wheel spin from occurring in the first place, it makes sense that they would want as even of a torque split as possible, all other things being equal. The difference in the JDM and other versions is that it has the Variable Torque Distribution (VTD) type transfer system that includes a mechanical planetary center diff that defaults the torque split to the 35-65. The US SVX would have had this system (it was introduced to the world on the SVX) but at the time the government required that the vehicle be able to operate in 2WD for emissions testing which is not possible with the VTD system. This VTD system didn't come our way until the outback VTD of only a few years back.
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2007 GS 450h-Active Stabilizer/Radar cruise 1994 L Blue 3.70 VTD ASE Master Automobile ASE Advanced Level Specialist Toyota Master Diagnostic Technician (former life) |
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