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Controller Specifications

COMPUSHIFT II

System Design

  • High-speed microcontroller running COMPUSHIFT II software

  • Software-preprogrammed shift and pressure tables, proprietary shift algorithms, built-in diagnostics and display software

  • Nonvolatile memory for storage of calibration and programming information

  • High-density multilayer surface-mount printed circuit board

  • Factory- and field-upgradeable

Programming

  • Factory programmed with all necessary software

  • Adjustments, setup and calibration via handheld display or PC setup utility

  • No PC or laptop computer required to completely program COMPUSHIFT II

Chassis

  • Chassis is a factory-sealed black powder-coated aluminum box with mounting flanges. There are no user-serviceable parts inside. The chassis should not be opened.

  • Dimensions

    • 4.875 x 6.375 x 2.125″ (excluding mounting flanges)

  • Mounting Flange Dimensions

    • 0.625 x 6.375″ (two flanges, opposite ends)

  • Mounting Holes

    • 2 – #10 holes per flange

Mounting Requirements

  • Controller must be mounted in a dry area, not exposed to heat from the exhaust, cooling, or heating systems

  • Controller must have clear air circulation (a 1″ air clearance around the sides and top is recommended)

Environmental Requirements

  • Relative Humidity

    • 0% – 90%, non-condensing

  • Temperature (Operating)

    • -30º – 60º C (-22º – 140º F)

  • Temperature (Storage)

    • -30º – 85º C (-22º – 185º F)

  • Protection

    • Automatic internal shutdown for over-temperature condition

    • Automatic protection against failed solenoids

Electrical Specifications

  • Supply Voltage

    • 8 – 16 volts DC

  • Supply Current, Quiescent

    • 600 mA @ 14.4 volts

  • Supply Current, Maximum

    • 5 A @ 14.4 volts (dependent on transmission type)

  • Solenoid Capacity

    • 12 solenoids drivers with automatic short-circuit protection

    • Short- and open-circuit detection with fault reporting

  • Tachometer Input

    • High impedance 0 – 12 volt signal input

    • Tachometer input not required. Used for wide-open throttle upshift and data logging.

  • Speedometer Input

    • Designed for variable reluctance inductive pickup on GM and Ford transmissions

    • Can function with appropriately conditioned 0 – 12 volt signal

  • Speedometer Outputs

    • Reproduced OEM TOSS Signal

    • Variable pulse count per drive shaft revolution

  • Throttle Position Sensor Input

    • 0 – 5 volt input, filtered against line noise

  • Automatic calibration to stroke range

    • 5 volt reference signal provided

  • Dual CAN buses for connection to vehicle networking

Connectors

  • Power – connection to vehicle power

  • Engine – connection to throttle position sensor, tachometer, speedometer, MAP sensor

  • Options – connection to display and accessory switches and indicators

  • Trans A – connection to transmission

  • Trans B – connection to transmission and optional hydraulic pressure sensor

  • USB – connection to PC

Indicators

  • 1 Red/Green LED indicating system status