BoonDocker YAMAHA: Nytro Turbo User Manual

Page 15

BoonDocker – 1585 Hollipark Dr. Idaho Falls, ID 83401 – 208-542-4411 / 877-522-7805

www.boondockers.com – email:

[email protected]

– fax: 208-524-7381

Revised 2-13-08

Page 15 of 20

B. N2O Configuration Procedure

Note: All nitrous configuration settings are stored in the same map as the EFI settings. All changes you make become
part of the current map. The current map number is shown in the Main Menu.

From the Main Menu, select the N2O option. Below is a description of this menu:

Fuel TPS RPM Btn

050 OFF OFF OFF

Fuel 050

Fuel setting during nitrous activation

TPS OFF

Shows TPS mode is OFF or displays TPS trigger value

RPM OFF

Shows whether RPM mode is ON or OFF

Btn OFF

Displays button mode (described in detail below)

Fuel:

The nitrous fuel adjustment tuning procedure is described above in section VIII.

Only a single fuel amount can be injected when nitrous is activated. Therefore, when using a turbo and nitrous,
the nitrous pressure must be regulated. This is because there is no way to measure and adjust for nitrous pressure
as it changes with temperature. If an adjustable regulator is used, your nitrous tuning will have to be changed
every time you adjust the regulator. The simplest option is a fixed regulator. To select fuel parameters, move the
cursor until it is under Fuel and press “SEL” or Up or Down Arrow. The following screen will appear:

N2OFuel Delay

030 000

N2OFuel

N2O fuel setting. Amount of fuel added when nitrous is activated.

Delay

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.