http://owen-developments.myshopify.com/
http://www.owendevelopments.co.uk/category/5/Engine_Management_Systems/
http://www.owendevelopments.co.uk/124/Partner_and_Customer_Cars/


Motec SDC (Subaru Diff Controller)
Motec

Motec SDC (Subaru Diff Controller)

Part Number: 14009/14010/14015
Manufacturer: Motec
  • Product Description
  • Additional Info

Motec’s Subaru Diff Controllers (SDC, SDC2 and SDC3) are suitable for Subaru WRX and STi vehicles. They are plug-in replacements for the factory fitted Driver Controlled Centre Diff (DCCD) controller, fitting into the OEM box that is bolted to the steering column underneath the dashboard.

Compatibility Table

 

Vehicle

SDC

Subaru WRX and STi: models from 2002–2004

SDC2

Subaru WRX and STi: models from 2005–2007

SDC3

Subaru WRX and STi: models from 2008


It is worth considering the installation of a Motec M800 Plug-In ECU in addition to the SDC2 or SDC3 to take advantage of several additional features. Using the RS232 serial communication link, all values from sensors connected to the SDC2 or SDC3 can be logged in the M800 Plug-In ECU, without having to duplicate any of the sensors.

Functionality

The SDC units are used to adjust the torque split between the front and rear differentials to achieve greater control over handling characteristics such as traction, braking on loose surfaces, turn in response, and understeer on both corner entry and exit.

The centre differential is essentially a limited slip differential with adjustable preload. The SDCs work by regulating solenoid current, which is proportional to the preload. When no current is applied (0% lock) the centre differential operates as an 'open diff' with a mechanical torque distribution of 65% rear and 35% front (60% and 40% in some vehicles). With increasing current (increasing percentage lock) the preload increases, requiring more torque difference between front and rear wheels before the centre differential will slip.

There are six selectable control modes: 0% lock, 100% lock and four user-configurable modes. These modes can be selected using the DCCD thumb wheel.

6 x Selectable control modes:

1 x 0% lock mode

4 x user-defined modes

1 x 100% lock mode

Control modes can be selected using the DCCD thumbwheel.

Each mode is configurable with an acceleration table, braking table and desired slip table.

The percentage lock can be configured using vehicle speed and throttle position. With the Motec M800 Plug-In ECU connected, engine efficiency point can be used instead of throttle position. The ECU will calculate and then send the efficiency point to the SDC2 or SDC3. This feature uses the factory wiring loom.

With the RS232 serial communications configured, the SDC2 or SDC3 can send wheel speeds, lateral G-force, longitudinal G-force, steering position, diff parameter and fault codes to the Motec M800 Plug-In ECU without the need for additional sensors.

The CAN interface optionally transmits the sensor and diagnostic information to a Motec Dash Logger.

Handbrake override.

enquire about Motec SDC (Subaru Diff Controller)
 
Newsletter Signup

Find us on Facebook
Copyright © 2017 Owen Developments  |  All Rights Reserved
Owen Developments Ltd
28 Kingston Business Park
Kingston Bagpuize
Oxford
Oxfordshire
OX13 5AS

t: 01865 821062
w: www.owendevelopments.co.uk
e: enquiries@owendevelopments.co.uk
COOKIE NOTICE

This site uses cookies to store information on your computer/device. By using this site you agree that we may store and access cookies on your device.

The cookies we use are required to make our site work and to gather information on the number of visitors to this website.

This information is ENTIRELY ANONYMOUS; no personal information is captured or stored. To find out more, see our privacy policy.

please click this button to acknowledge that you accept cookies from this site and to dismiss this message