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Summary of Contents for GFB G-Force III
- Page 1 GFB G-Force III Installation Instructions Part #3005 SCRAMBLE SETTINGS PRESET +61 2 9534 0099 sales@gfb.com.au www.gfb.com.au facebook.com/GFBturbo instagram.com/gofastbits...
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Page 2: Table Of Contents
The GFB G-Force III boost controller is designed to not only bring boost on as fast and accurately as possible on a turbocharged vehicle, but also to provide you with an accurate wideband Air/Fuel Ratio gauge using an externally connected wideband module. -
Page 3: Installation
wiring diagram 3 - installation... -
Page 4: Solenoid Valve Installation Diagram
The G-Force III solenoid should be mounted 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 in a way to prevent ingress of dust, dirt and water. -
Page 5: Menu Navigation
100 is the fastest. For more details, see page 9. Sensitivity Controls how strongly the G-Force III attempts to correct changes in boost pressure. Sensitivity is adjustable from Display scrolls “SEnS”. 0-100, where 0 results in no correction and, and 100 is the For more details, see page 10. -
Page 6: Quick Start Guide
See page 5 for menu structure. BASIC SETUP - these are the minimum recommended settings before using your G-Force III After installation (page 3 & 4), turn the ignition on to power up the G-Force III, but DO NOT start the engine »... -
Page 7: Boost Presets
The G-Force III has 6 boost presets (P1-6), each of which can be individually programmed and accessed quickly on- the-fly using either the “PRESET” button on the G-Force III, or remotely by using the “Input 1" wire connected to a push button switch. -
Page 8: Setting The Boost Pressure
Tap “SETTINGS” to move on to GAIN, or hold “SETTINGS” to exit. In either case, the duty cycle setting and peak boost will be saved to the boost preset that you are currently in. The G-Force III will use these stored values for the GAIN and SENSITIVITY features. -
Page 9: Gain
Gain The Gain setting can help spool up the turbo faster by withholding pressure from the wastegate until boost is closer to the target boost. NOTE: the Gain setting requires a peak “target” boost to be set up in the Duty Cycle menu (page 8). If you adjust Duty Cycle without performing a boost run, the target boost will be 0 and the Gain function will not be operational. -
Page 10: Sensitivity
Running Mode. There are limits to what the G-Force III can do with the turbo and wastegate – if the duty cycle setting is already quite high, there is not much adjustment left for the controller to make if boost drops off –... -
Page 11: Scramble Boost
The G-Force III uses a unique approach to Scramble where it jumps to a dedicated Scramble boost preset when activated, instead of simply adding extra boost. This method offers much more flexibility in how it can be used because you can tailor the duty cycle, gain, and closed-loop correction specifically to suit the purpose that you intend to use this feature for. -
Page 12: Lean Cutout
NOTE: The Overboost feature CANNOT protect against a boost overshoot caused by a stuck wastegate or popped wastegate/solenoid hose connection, since these kinds of failures are outside of the G-Force III’s control. If you hit the Overboost function when driving, the display will show “Cut”, and the buttons will flash red. -
Page 13: Peak Hold
peak hold The Peak Hold function (when activated in the menu) will momentarily display the highest boost pressure recorded during a boost run, and the display is set to show boost pressure (not during AFR display). Whenever the manifold starts to see positive boost pressure, Peak Hold will begin recording and will displayed the highest achieved value for 3 seconds as soon as the manifold drops back into vacuum. -
Page 14: Input 1 Setup - External Trigger
0V=0.68 lambda/10 AFR, and4.5V=1.29 lambda/19 AFR. The G-Force III display will show 3 dashes (---) when the sensor is warming up or if the AFR is off the scale (i.e. during deceleration when the injectors cut). -
Page 15: Stoichiometric Ratio
Stoichiometric Ratio setting requires you to configure the G-Force III to the specific fuel you are using. By default, we have configured this setting to 14.7:1 for regular gasoline. If you do not make the correct changes to the stoichiometric ratio for the fuel type you are running, the display gauge will be inaccurate. -
Page 16: Colour Settings
Colour settings Colour allows you to configure the button colours - both the normal “background” colour (i.e. when not pressed), and also the “feature active” colour, which is the colour a button turns when either scramble or preset features are activated (see pages 7 and 11). -
Page 17: Tips
Then, when you stage your car, manually select boost preset 1 using the buttons on the G-Force III, and then each time you shift gears after your launch, the external input on the clutch or gear selector will activate the next boost preset. - Page 18 It may hold boost stable for some of the rev range, but at high RPM it is wide open and not flowing enough to prevent boost from rising further. At this point the G-Force III can do no more, the only solution is a larger wastegate.
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Page 19: Tech
Once the G-Force III knows the duty cycle that results in the target boost pressure, it can then make changes to the duty cycle to compensate for small variations in boost (when a value for “Sensitivity” has been entered). -
Page 20: Warranty
warranty All products manufactured or distributed by Go Fast Bits P/L are subject to the following Limited Express Warranties, and no others: For a period of one year from and after the date of purchase of a new Go Fast Bits product, Go Fast Bits warranties and guarantees only to the original purchaser/user that such a product will be free from defects of material and/or workmanship in the manufacturing process.
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