ExV menu on the Boondocker box?

[jijohans]

Anyone? Please explain how to tune in these settings and what the different settings do in the map

 

[mblanken881]

Subscribing

 

[msandrews81]

boondocker explains it in their instructions on their website.


http://www.boondockers.com/instructions/snow/arctic cat/control box/M7_M8 AC Turbo _PG_ 12-01-09.pdf

4.B ExV (Exhuast Valve) Setting
This menu allows the Fuel adjustment to be made whenever the Exhaust Valve value is above a certain value (before
it closes). Move the cursor-arrow to ExV and press Sel or Up/Down arrow, the following screen will be displayed:
ExV Fuel on if
ÆOFF ExV > 200
ExV OFF Shows ExV mode is OFF. Press Up or Down Arrow Buttons to toggle ON/OFF.
200 Exhaust Valve threshold value. When the Exhaust valve is closed, the value will be high (165 or
so). When the Exhaust Valve is open, the value will be low (less than 100). The fuel adjustment
will be made when the Exhaust valve position value is greater than this value. Suggested values
are between 110 to 150.
Press the “SEL” button to return to the Main Menu.
4.C RPM Setting (for Exhaust Valve)
This menu allows an RPM window to be set for fuel adjustments to be made according to Exhaust Valve position.
If RPMs are above the Min value and the Exhaust Valve is closed (ExV is a high value), fuel will be added until
either the RPMs exceed Max RPM value or the Exhaust Valve closes (ExV is a low value). Note: The ExV setting
(previous menu) must be set to ON for the RPM settings to have effect. Move the cursor-arrow to RPM and press
either Sel or Up/Down arrow buttons, the following screen will be displayed:
RPM Min Max .
OFF← 5050 7550
RPM OFF Shows RPM mode is OFF. Press Up or Down Arrow Buttons to toggle ON/OFF.
5050 Min RPM threshold.
7550 Max RPM threshold.
Move the cursor right to adjust the Minimum RPM (fuel adjustment will be on above this level) and the Maximum
RPM (fuel adjustment will turn off above this level).
Press the “SEL” button to return to the Main Men

 

[clutch]

Is that feature only on the new boondocker boxes, and if so can the earlier ones be reprogrammed to do this. That would be an awesome feature!

 

[Arctic Thunder]

Is that feature only on the new boondocker boxes, and if so can the earlier ones be reprogrammed to do this. That would be an awesome feature!

Can be done with the NOS system also.

You go through a similar setup but your box will read RPM and the voltage from the servo motor control to change fuel settings depending on the Power Valve positions.

So you need at least a NOS capable box. I found the instructions online for this setup also.

Thunder

 

[kcdavidak]

generally speaking it's for adding fuel right when the evavles open. slight lean spot on some sleds. i.e. 1m900's ,my 2010 m8 doesn't seem to have a problem there. David