GFB G-Force2 - Manual (Page 6)

6 - MENU navigation
The G-Force II has 6 boost presets (P1-6), each of which can be individually programmed and accessed quickly
on-the-fly using a variety of different methods.
There is an additional preset called “SCr”, which is the preset that is activated when the scramble feature is used.
See page 10 for more info on scramble. “SCr” can be set up and used just like any other preset, so effectively there
are actually 7 presets in total.
Whilst 7 presets may be more than most people will use, there are a number of ways they can be utilized to further
fine-tune your boost to suit whatever it is you plan to do with your car, whether it be for street, drag, circuit, or drift.
See the suggestions listed on page 14 for ideas on different ways the boost presets (and other features) can be
used.
Each boost preset consists of 3 adjustments that can be used to tailor the boost curve:
· Duty cycle - controls peak boost pressure
· Gain - controls how fast the boost rises
· Sensitivity - controls the strength of the closed-loop correction – i.e. how strongly the controller
attempts to correct boost pressure changes and taper
Note that it is not necessary to set or use Gain and Sensitivity to set the boost pressure - for simplicity, boost can
be controlled only by Duty Cycle if so desired. Usually, a well-matched turbo/wastegate/engine will respond very
well with only Duty Cycle adjustments, however these features are helpful when your goal is to extract the most out
of your turbo system.
For best results, these three adjustments should be made in the order listed above, as each correction ties into the
previous one.
To select boost presets:
From Running Mode, (or the remote trigger button if installed and configured, see page 3 and 12 for
details) to sequentially scroll through the boost presets from SCr-1-6, as shown below:
Whenever the down/boost button or remote trigger is used to change the preset,
the down/boost button changes colour as an additional visual indication that a
preset change has occurred. The colour that the button changes to can be set in
the Colour MENU (see page 13).
Whenever the manifold is in vacuum and a new boost preset is selected, the display will show the boost preset
number, followed by the target boost pressure associated with that preset before returning to Running Mode after a
few seconds:
If the manifold is in boost, the display stays as a boost gauge, but the down/boost button still changes colour to
indicate a preset change.
Running Mode
Peak boost Running mode Boost preset
E.g.
boost presets
Tap BOOST
Tap BOOST
BOOST
SCRAMBLE
MENU