hrubago

Have modyfied STi 3 wagon with haltech engine management and front ATB diff. Have possibility to buy STi RA drivetrain with electronic adjustable diff.

My question is:
1) is the central electronic adjustable diff fully independent system or it need some ECU function and other senzors readings? Is it easy replaceable (only plug and play into my car?
2) Also heard some about electronic diff control computer (i thing town end garage is the developer/manufacturer) which can set diff depended on driving conditions. Different settings during cornering, braking, accelerating. But i think all the measurings is taken from standard ECU. Is there a possibility to have diff computer together with HAltech?

Erik

Last sentence is question No3
We know GEMS makes ECU witch can cope with up top 3 active difs and we want to know if is there any chance make it with Haltech too.
If that old (not USA STi version) dif is standalone system than the question is: Can we use it with Haltech ECU driving with custom maping for different surfaces?

Best way is plug into ECU directly if it is not possible we want to know if we need any "magic" box for translating/transmiting/... signals for ECU.

hrubago

No answer ???

911

Try calling www.townendgarage.co.uk they have a lot of experience in this field with thier rally cars. They are Gems people too. might help?
Graham.

mark@wrx

The centre diff ecu is a seperate one. As far as I know the wiring should be in your car as part of the wiring loom. As others have said, call Stuart at Townend and check.