GFB G-Force2 User Manual

4 (2)

GFB

Electronic boost controller

instruction manual

MENU

SCRAMBLE

BOOST

Go Fast Bits P/L

Ph: +61

(0)2 9534 0099

P.O. Box 1017

Fax: +61

(0)2 9534 3999

Riverwood NSW 2210

Email: sales@gfb.com.au

Australia

Web: www.gfb.com.au

contents

Intro

 

 

About the G-Force II

2

Installation

 

 

Wiring Diagram

3

 

Solenoid Valve Installation Diagram

4

Menu Navigation

 

 

Menu Structure

5

 

Boost Presets

6

Setting the Boost Pressure

 

 

Duty Cycle

7

 

Gain

8

 

Sensitivity

9

Controller Functions

 

 

Scramble Boost

10

 

Overboost

11

 

Peak Hold

11

 

Display Setting - Units of Pressure

12

 

Input Setup

12

 

Colour Settings

13

Additional Info

 

 

Tips

14

 

Troubleshooting

15

 

Tech

16

 

Warranty

16

about the g force ii

The GFB G-Force II boost controller is designed to bring on boost as fast and accurately as possible on a turbocharged vehicle. It incorporates an advanced and unique boost control strategy that allows the user fine control over the peak boost, rise rate, and closed-loop correction.

The G-Force II also features a new user interface, making menu navigation and setup as fast and simple as possible.

Features at a glance:

?6 individually programmable boost preset memories, selectable on-the-fly ?Closed-loop correction - helps prevent boost variations

?New scramble boost strategy - increase or decrease boost for a certain amount of time at the push of a button ?Overboost protection - shuts down the solenoid and flashes a warning if boost goes too high

?Peak hold display

?Real-time boost/vacuum gauge display - in BAR, kPa, or PSI

?External input - can be used to activate scramble or select boost memories remotely ?Adjustable button colours - tie in with the car’s existing lighting

91.5mm

Installing the Head Unit

The G-Force II casing is a ½ DIN size, allowing to be mounted into one half of a standard stereo slot.

Alternatively, with its thin profile (18.5mm), the G-Force II can be mounted on a vertical face of the dashboard, or stood up on its edge using the supplied double-sided mounting tape.

MENU

53.5mm

SCRAMBLE

BOOST

2 - intro

installation - 3

Engine Bay

Vehicle Interior

1/8” I.D. vacuum hose

Vacuum hose joiner

To intake manifold - use small Tee to tap into an existing vacuum hose if necessary

Boost Control

Solenoid

Loom

Yellow wire - not used, future features (see notes below)

Blue wire - External input (see notes below, and pages 12 & 14 for details)

Red wire -

+12V switched power source

Black wire -

Vehicle ground (chassis)

MENU

SCRAMBLE

BOOST

Optional Remote Trigger Circuit

Remote trigger button (not supplied). Use any switch, button or sensor that grounds the blue wire when activated

The external input can be used as a remote trigger simply by connecting it to any kind of switch, button, or programmable ECU output that grounds the blue wire to the vehicle earth when activated. For ideas on different ways to use the external input, see page 14. Once connected, the purpose of the external input must be configured within the “INPUT” sub-menu within the menu (see page 12).

The yellow wire currently has no purpose, it is intended for use with future features.

If either the blue or yellow wire are not used, simply cut or bundle them and make sure they are insulated.

WARNING! Do NOT connect the blue or yellow wire to a 12V source as this could damage the unit.

diagram wiring

GFB G-Force2 User Manual

solenoid valve installation

Mount the solenoid valve in a position away from significant heat sources (such as the exhaust manifold and turbine), and where it is protected from rain or splashed water. The unused outlet of the solenoid valve should be positioned facing downwards to avoid ingress of dust, dirt and water.

DO NOT plug the un-used solenoid port, as this will prevent the controller from being able to adjust boost pressure.

Internal Wastegate

Screw the two supplied hose tails into ports 2 and 3 of the solenoid valve, and connect the ports to the correct locations as shown using the supplied 3/16” hose.

Screw the two supplied hose tails into ports 1 and 2 of the solenoid valve, and connect the ports to the correct locations as shown using the supplied 3/16” hose.

Port 2

Port 3

Boost pressure source

Wastegate actuator

Turbo

External Wastegate

Boost pressure source

Large Tee

Port 1

Wastegate

Port 2

Turbo

Top port

Bottom port

4 - installation

menu structure

 

RUNNING MODE

 

(Normal controller operation)

Hold MENU

 

To exit from the

To enter menu and advance

menu at any point

through the options

Duty Cycle

Display scrolls “dUtY”, followed by “PEAK”. Details see page 7.

Gain

Display scrolls “gAIn”.

For more details, see page 8.

Sensitivity

Display scrolls “SEnS”.

For more details, see page 9.

Scramble Seconds

Display scrolls “SCr SEC”.

For more details, see page 10.

Overboost

Display scrolls “OVErbSt”.

For more details, see page 11.

Peak Hold

Display scrolls “PEAK”.

For more details, see page 11.

Display Units

Display scrolls “dISP”.

For more details, see page 12.

Input Setup

Display scrolls “INPUt”.

For more details, see page 12.

Button Colours

Display shows “COL.”.

For more details, see page 13.

Controls peak boost pressure.

Duty Cycle is adjustable from 0-100%, where 0 results in the lowest boost pressure, and 100 is the highest.

Controls how fast the turbo spools up.

Gain is adjustable from 0-100, where 0 is the slowest spool-up, and 100 is the fastest.

Controls how strongly the G-Force II resists changes in boost pressure. Sensitivity is adjustable from 0-100, where 0 results in no correction and, and 100 is the

Sets the number of seconds that the scramble boost feature remains on when activated.

Adjustable from 0-100 seconds.

Turns off the solenoid in the case of over boost.

The Overboost setting is adjustable from 0-345kPa, 0- 3.45bar, or 0-50psi, depending on which display units are currently in use.

Turns the Peak Hold display function on and off.

When set to “ON”, the display shows the peak boost value for 3 seconds after the manifold drops to vacuum.

Changes the display pressure units.

Can be set to kPa (default setting), BAR, or PSI.

Changes the function of the external input wire. “OFF” turns off the remote input, “PrE” jumps to the

next boost preset, and “SCr” activates scramble feature.

Allows changes to the button colours.

The display does not change, but pressing “up” will alter the “scramble/preset active” button colour, and pressing down” will alter the normal “background” button colour.

5 - Menu navigation

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