Max Extreme Installation Mounting The Max Extreme should be installed securely in a location away from water and dust. Secure the mounting brackets to the threaded holes in the end plates of the Max unit, using only the screws and spacers provided, as failure to do could result in damage to the internal circuit board. Mount the Max unit to a secure surface bearing in mind the position of the wires and where you intend to run them to. Care should be taken not to severely kink or trap the wires during installation. The unit should also be mounted within reach of the driver from the driving position so that adjustments can easily be made. Wiring Always connect the ground (black wire) before connecting +12Volts Quick reference guide; Black - 0 Volts – Ground - Negative Orange - 12 Volts (switched on arming) Yellow - Output 1 (0 Volts – Ground - Negative) Grey - Output 2 (0 Volts – Ground - Negative) Blue - Nitrous Output (0 Volts – Ground - Negative) Red - Fuel Output (0 Volts – Ground - Negative) Grey/Blue - Revo Nitrous (currently not used) Orange/Red - Revo Fuel (currently not used) Red/White - Regulated 6 Volt output White - Throttle input positive (NOT negative as our previous Maximiser units), connects directly to the cars TPS (0-5 Volts) output or to a micro switch which switches the 6 Volt output from Red/White. Green/Red - Fuel pressure transducer in (0-5 Volts) Brown - Currently not used Black/Orange - Nitrous pressure transducer in (0-5 Volts) White/Black - RPM input (any engine speed related pulse signal, i.e. coil negative, crank sensor, rev counter input etc Transducers (optional extras) Nitrous Transducer Specs: Input Voltage - 10 – 30 Volts Output Voltage - 0 – 5 Volts Pressure range - 0-1500 PSI The nitrous transducer should be connected either at the bottle or inline with the pipe connection to the solenoid, preferably mounted close to the bottle. Wiring: Red - +12 Volts Black - 0 Volts (Ground) Black/Orange - Signal out (connect to Orange/Black nitrous transducer wire on Max Extreme) Fuel Transducer Specs: Input Voltage - 4.5 – 6 Volts Output Voltage - 0 – 5 Volts Pressure range - 0-150 PSI The fuel transducer should be connected to the high pressure side of the fuel system, preferably near the fuel solenoid. Wiring: Red - +6 Volts (red + white wire from Max Extreme) Black - 0 Volts (Ground) White - Signal out (connect to Red/Green fuel transducer wire on Max Extreme) Trimming for Transducer use Once connected, the Max Extreme will need to be calibrated in order to achieve accurate results. Using the picture below as a guide, the nitrous and fuel transducer trims need to be adjusted, so that the pressure reads the same as that on a gauge temporarily connected into the same system. Turning the adjustment screw clockwise will reduce the reading, turning it anti-clockwise will increase the shown reading. Using the Max Extreme. Button Layout The buttons have been arranged in the following manner: <UP> <ENTER> <EXIT> <DOWN> In a menu <UP> and <DOWN> will move the cursor between options, whilst <ENTER> will access it. In some cases it has been necessary to use <ENTER> to scroll between options and <UP> & <DOWN> to change values. Initial Setup The Max Extreme is supplied with factory default settings, some of which may not suit your application. Unfortunately due to the changes in different versions of the software, it’s impossible to say which settings may or may not need alteration. If these values are not set correctly the unit will sound an alarm and prevent the system functioning. Before you test the unit you should check the following settings to ensure full functionality: In the RPM menu, the Min (minimum) RPM is set to 0000, unless you have your RPM link connected and working correctly. In the Alarms menu check the nitrous pressure is set to approx. 1,000 psi. If you have a nitrous transducer connected make sure the actual nitrous pressure is below this value or the unit will not function correctly, instead you will receive an alarm warning you that your nitrous pressure is too high and the unit will shut down the system. Also in the Alarms menu check the fuel pressure is set to zero unless you have a fuel transducer connected. If you have a fuel pressure transducer connected, set this value to your minimum acceptable working pressure. If the actual fuel pressure drops below this value at any time, an alarm will sound warning you of this and the unit will shut down the system. In the Throttle menu, with the throttle connected correctly, the ignition on and the throttle pedal pressed towards the floor, check that the activation value is set slightly lower than the value indicated at full throttle and that the bottom of the screen reads ‘Higher than = ON’. Note: this can be reversed to suit the few applications which use a reverse voltage (5-0 Volts) for the throttle position sensor. The Screens SCR 1 – Start up screen SCR 2 – Main Screen SCR 3 – Menu 1 SCR 11 – System menu SCR 15 – Load/Save menu SCR 16 – System 2 menu SCR 17 – Solenoid Frequency menu SCR 19 – Fuel log SCR 20 – Voltage log SCR 21 – Nitrous log Setting the Power SCR 4 – The Power menu From the Start Screen (SCR 2) press any button briefly to enter the menu. From the menu select ‘Set Power’ using the <UP> and <DOWN> keys and press <ENTER>. You’ll then be displayed with the ‘Power’ screen, see Fig 2 In this screen the power build up from start power to final power can be adjusted, you also have three individual ‘mid-points’ (5 points in total) which can also be adjusted to suit your nitrous power requirements. For example, if you have a turbo car, you may want to deliver a lot of nitrous briefly to spool up the turbo quickly, then drop the power down as it hits peak boost to avoid wheel spin. When the power starts to tail off at higher RPM add more nitrous to compensate. In this instance your power screen may look similar to fig 2. On the left of the screen you’ll see 5 bars, these represent the current set power level of each point (point 1 – 5). At the top you can see the current gear, while selected, pressing either the <UP> or <DOWN> arrow will scroll through the gears. As you can see you can tailor each gear individually. When you’ve selected the gear you’d like to edit press <ENTER>. The cursor (or arrow) will then point to ‘Point 1’ with a percentage of power next to it. Using the <UP> and <DOWN> arrows you can adjust the power of ‘Point 1’, you’ll also see the bar on the left changing as you make adjustments. Point 1 is effectively your start power, meaning this is the percentage of power you’ll get when you first activate the nitrous system. Once you’ve set Point 1 press <ENTER> to move to Point 2 and do the same for this point up to point 5 (the final power). Once you’ve set Point 5 pressing <ENTER> again will move the cursor to the ‘Build Time’ (represented as Build T). This is the total time taken to get from Point 1 (your start power) to Point 5 (your final power). Again using the <UP> and <DOWN> keys you can adjust the build time between 0.1 and 9.9 secs. Now repeat the process for as many gears as you’d like to use (up to 6). Auto / Manual G/box mode (Start Screen – Menu – System – System 2 – Man/Auto) SCR 18 – Gearbox menu The system can be set to run in 3 different transmission modes, manual, Auto time increment and RPM drop. To scroll between modes simply press the <ENTER> key until the arrow is pointing at the option you’d like, then hit <EXIT>. In manual mode the unit will move to the next gear when it sees the throttle released and pressed again. In auto time increment it will scroll to the next gear at the end of each gears build time, effectively giving you 30 different power points! In RPM drop mode the unit will move to the next gear when it sees the engines RPM drop more then the selected level. In this mode, by using the <UP> and <DOWN> keys the RPM drop can be adjusted to suit your car. RPM Window Switch SCR 6 – Engine speed menu The Max Extreme has an in-built RPM window switch. Once you’ve connected the RPM input wire (white and black) the engines RPM will be displayed on the main screen (SCR 2). By entering the menu (SCR 3) and selecting ‘Set RPM’ (SCR 6) you can adjust the RPM ‘window’ in which the system works within. Using the <UP>, <DOWN> and <ENTER> keys the start and end RPM values can be changed. If the RPM readout is incorrect you can also change the amount of cylinders in this menu. Display Menu SCR 7 – Display menu You can change what is displayed on your main screen (SCR 2) in this menu. You can access this option by entering the menu (SCR 3) and selecting ‘Display’ (SCR 7). Once in the menu you can scroll through the 6 options using <ENTER> and by pressing <UP> or <DOWN> you can toggle them between ‘on’ or ‘off’. Delays Menu SCR 8 – Delays menu You can access this option by entering the menu (SCR 3) and selecting ‘Delays’. This menu enables you to change any of the delays that are customisable in the Max Extreme. These are: Gear reset: - The amount of time the unit takes to assume you’ve finished a race and reset back to 1st gear ready for the next. Nitrous delay: The amount of time the nitrous solenoid is delayed in comparison with the fuel solenoid. Fuel delay: The amount of time the fuel solenoid is delayed in comparison with the nitrous solenoid. Using <UP> and <DOWN> will change the selected delay time. Pressing <ENTER> will scroll to the next delay. System Standby Mode Rather than using an on/off switch, the Max Extreme can easily be put in and out of ‘Standby’. This effectively turns off the nitrous outputs but will still allow monitoring of pressures etc. It will also allow outputs 1 & 2 to work so things like a shift light and/or bottle heater will still continue to operate correctly. To enter Standby press and hold <EXIT>, once in Standby mode, pressing any button will return you to the main screen. However, if the unit is switched off in Standby, when it is switched back on it will return to Standby until a key is pushed. The Test Menu SCR 9 – System tests menu You can access the Test screen by entering the menu (SCR 3) and selecting ‘Test Menu’. Here you can test each of the four outputs by selecting them using <UP> and <DOWN> and holding <ENTER> to activate them. As soon as <ENTER>is reeased the output will stop. You can also ‘Run Sim’ by selecting it and holding <ENTER>. The ‘Run Sim’ option will cause the solenoid outputs to run through first gear as if you would when actually using the system. Min, Max and Mixture Menu SCR 12 – Min & Max settings You can access this screen by entering the menu (SCR 3) and selecting ‘System’ (SCR 11) and then ‘Min/Max’ (SCR 12). This option allows you to adjust the minimum and maximum solenoid pulse widths, adjust the burn-out power and allows you to offset the mixture of fuel and nitrous. Use <ENTER> to scroll between the options and <UP> and <DOWN> to change the values. Burn-Out Mode To enter the ‘Burn-Out’ mode from the start screen (SCR 2), hold down any key except <EXIT>. Once in this mode, whenever full throttle is reached (and providing other parameters such as RPM, etc. are within their range), the unit will give a continuous ‘non-progressive’ power delivery at the previously set level in the menu above (SCR 12). Once your burn-out is complete and you no longer require the function simply press any button briefly to exit back to normal mode. Outputs Menu SCR 13 – Output menu The Max Extreme has 2 additional outputs which can be used for almost anything (please note they give a ground (0V) output). These outputs can be activated by different parameters (such as RPM, % power output or nitrous pressure) and are adjusted in this menu. Pressing <ENTER> will scroll between different outputs, pressing <UP> and <DOWN> will change the current value, scrolling through a value (eg % power) will then take you to the next parameter. After 100% power you’ll reach RPM and after 14,000 RPM you’ll reach nitrous pressure. The selected output will come on after the set point. For example, if you set output one to come on at 65% power, it will only come on when the power output from the unit reaches 65% or more. If output 2 is then set to 5500 RPM, then that output will only operate when the engine speed reaches 5500 RPM or more. Throttle Menu SCR 14 – Throttle menu You can access this option by entering the menu (SCR 3) selecting ‘System 2’ (SCR 11) then selecting ‘Throttle’. The throttle menu allows you to adjust the point on your throttle in which the system activates. Once the unit is connected to the cars throttle position sensor this screen will display the actual position of the throttle as a number. As you move the throttle you’ll notice the number goes up and down. This screen also shows the ‘active’ point, this is the throttle position the system will activate beyond. This needs to be set to a number close to maximum throttle. Use <UP> and <DOWN> to set this position. The unit also caters for throttle position sensors which work reverse voltage (ie 5V down to 0V as the throttle opens). If your car works this way then pressing <ENTER> will cause the unit to reverse it’s function meaning the active point needs to be lower (rather than higher) for the system to activate. You’ll notice the bottom right of the screen either says ‘OFF’ or ‘ON’, this indicates the current throttle position and the settings you have whether the system would be active or not. Alarms Menu SCR 22 – Alarms Menu SCR 22a – Alarm warning screen You can access this option by entering the menu (SCR 3) selecting ‘System 2’ (SCR 11) then selecting ‘Alarms’. The Max Extreme offers an ‘alarm’ function which basically stops the system being used under dangerous conditions such as a low fuel pressure. Revo Mode The Max Extreme can easily be put into ‘Revo Mode’ by a few simple menu adjustments. Please note *Solenoids must not be connected to the Max Extreme whilst in Revo Mode* From the Main screen press any button to enter the menu. From there select ‘system’ then ‘system 2’ and finally ‘solenoid freq’. Turning the frequency up using the <UP> key beyond 50 Hz will select ‘Revo Mode’. By pressing exit you will engage Revo mode and you’ll get one final warning about solenoids connected to the system. When the unit is in Revo mode a new menu becomes available in the ‘System’ menu called ‘REVO’, this stands for End Point Adjustment. This menu enables you to fine adjust the Revo’s park position, adjust the overall power output of the Revo’s as a percentage and adjust the mixture ratio (again as a percentage) between nitrous and fuel. The rest of the unit should work in the same way as it would with solenoids.