BoonDocker ARCTIC CAT: 800/1000 Turbo - Manual (Page 14)

BoonDocker – 2379 Heyrend Way Idaho Falls, Idaho 83402 – (208) 542-4411
website: www.boondockers.com - email: [email protected]
Revised 03-14-07 Page 14 of 18
On for N2O :

ARM
This mode is probably not useful for turbo use. If desired the Exhaust Valve fuel adjustment can be
“armed” by using the button. In this mode, if the Exhaust Valve fuel adjustments are set up, the button
must be on for the fuel adjustments to be made.
Press the Left or Right Arrow to return to the N2O menu or push the “SEL” button to return to the Main
Menu.
VIII. EFI Tuning
Important:
The Auxiliary Injector Test (under Auxiliary Injector Harness section above) must successfully pass before
running or tuning the sled!
Fuel Requirements:
Race gas MUST be used, even for low boost! Detonation will quickly destroy your engine! (see topic in Tuning
Tips)
SUNOCO 112 is recommended and has been determined to be adequate for boost levels up to 14psi. VP fuel is not
recommended - it has been found to have lower motor octane than other comparable fuels. Other suggested
brands include Unical, Rockett Brand, F&L Racing Fuel, Pure Purple, and Trick racing gas. Always use fresh fuel
from a sealed barrel.
Spark Plug Gap:
Use new spark plugs and reduce the gap to .018” - .020”. Carry extra plugs – leaded fuel and boost is hard on spark
plugs.
Recommended Control Box Settings:
*** Please call Boondocker to receive the latest Fuel Setting information ***
Each Fuel adjustment setting goes from –99 to 127. Positive numbers add fuel and negative numbers subtract fuel.
This does not mean you have an effective range all the way to 127 – you will max out the injector before this setting is
reached! Your usable adjustment range (max value) is dependent on how much the ECU is already driving the
injector which will vary with temperature, elevation, rpm, and fuel pressure.
Boost Controller:
It is recommended to start with the boost controller turned to the lowest boost setting. To find this starting point,
remove the boost controller, loosen the knob all the way, blow through it while tightening the knob until you start to
feel resistance (the valve starts to close off). Make sure the engine is tuned properly before increasing the boost and
watch closely for proper fuel mixture and detonation (see topic in Tuning Tips).
Maximum recommended boost is 12psi at 5000’, 14psi if above 8000’.
Tuning Instruments:
Air/Fuel gauge:
A good wideband O2 gauge is highly recommended as an effective tuning tool. The sensor will have a limited
lifespan due to exposure to pre-mix oil and leaded racegas, but in many cases it can last for a season and it is a very
valuable tuning tool. If desired, after initial tuning is completed the probe may be removed to prolong its life.