BoonDocker YAMAHA: Non-turbo Control Box Apex User Manual
Page 12
BoonDocker – 2379 Heyrend Way Idaho Falls, Idaho 83402 – 208-542-4411 / 877-522-7805
www.boondockers.com – email:
– fax: 208-524-7381
Revised 07-18-07
Page 12 of 16
Fuel:
The nitrous fuel adjustment tuning procedure is described above in section VIII.
If box in in N2O:ADJ (adjustable regulator) mode:
Use the 180 and 340 settings to customize the N2O Fuel Adjustment Line for your engine and nitrous nozzle
sizes.
340 180psi Dlay
050 025 000
The 340 and 180 fuel settings are
used to create a Fuel Adjustment
Line (see graph) which allows
nitrous fuel to be automatically
adjusted according to N2O pressure...
Descritpion of N2O Fuel menu for ADJ mode:
340 050
High N2O pressure fuel setting (fuel adjustment is centered at 340psi)
180 025
Low N2O pressure fuel setting (fuel adjustment is centered at 180psi)
Dlay
Number of engine cycles to delay fuel. Use this feature to reduce any bog that occurs
due to fuel being delivered before nitrous.
000
Zero = no delay, non-zero = engine cycles before fuel is delivered.
If box in in N2O:NON (non-adjustable regulator) mode or N2O:FIX (fixed-regulator) mode:
N2O Fuel Delay
050 000
Descritpion of N2O Fuel menu for NON / FIX mode:
050
N2O fuel setting. Amount is centered at 1000psi, if bottle pressure is lower, actual fuel
delivered will be reduced, if bottle pressure is higher, actual fuel delivered will be higher.
Delay 000
Delay in number of engine cycles from when nitrous is activated to when fuel is delivered.
Use this feature to reduce any bog that occurs due to fuel being delivered before nitrous
arrives in the engine.
TPS:
To select throttle-position triggering, move the cursor until it is under TPS and press “SEL”, Up or Down
Arrow. The following screen will appear:
TPS N2O on if
OFF TPS > 200
TPS OFF
Shows TPS mode is OFF.
200
TPS threshold value.
Under TPS, press the Up or Down Arrow to toggle the TPS mode ON or OFF.
Move the cursor right to the 200 setting, then use the Up and Down Arrows to select the trigger level. This
number is set to near 200 at the factory. You can adjust it from 50 to 248. To choose your level, look at the
third Stats screen. (Press “SEL” to get to the Main Menu, then select Stats, and press “SEL” until the third
Stats screen appears – “N2O” is displayed in upper left-hand corner). With the sled on a test stand, quickly
press the throttle fully and release it. Note the number under “MxTP” This is the maximum value your TPS
will output. Let the engine idle, clear the Stats screen, and note the MxTP number, which is the minimum
TPS output. Choose a number close to the maximum for full-throttle activation. If you choose a number too
close to the maximum, it may sometimes fail to trigger. If you choose a number too low, it may trigger when
only moderate acceleration is desired.
Press the “SEL” button to return to the Main Menu.
N2O Pressure/PSI
N2O Fuel Adjustment Line is determined by
the 180 and 340 fuel settings
50
25
180
340
Fuel
Adjust