BoonDocker POLARIS: 700/800 IQ Dragon Plug & Play User Manual
Page 5
BoonDocker – 1585 Hollipark Dr. Idaho Falls, ID 83401 – 208-542-4411 / 877-522-7805
www.boondockers.com – email:
– fax: 208-524-7381
Revised 1-16-08
Page 5 of 13
M1L
This displays current map that is being used – in this case, M1 stands for Map1, and L indicates the map is
Locked (changes are not allowed). Five possible fuel maps can be used. Each map consists of all the fuel
settings for a particular setup. If the map is Locked, the settings cannot be changed and the up/down buttons
have no effect. If U is displayed, the map is Unlocked, adjustments can be made to any setting and these
changes will be automatically saved to the selected map. Refer to the Load/Copy sections for more details about
how to Lock, Unlock, Load, and Copy different Maps.
3000
This is the RPM Region for the fuel adjustments on this screen. For this example, this screen’s adjustments will
be centered at 3000rpm. There can be from 3 to as many as 7 rpm regions depending on the program version.
The effect of the 3000rpm setting tapers off until 5000rpm, while the effect of the 5000rpm setting ramps up as
rpms go towards 5000. The other regions work similar to this.
LO / MD / HI
These are the engine Load settings for each RPM region. Since engine load is directly related to
throttle position, each load range is equivalent to the following approximate throttle positions:
LO = 0 up to 1/3 throttle
MD = 1/2 up to 2/3 throttle
HI = 2/3 up to full throttle
tr
This adjustment is to Trim the PTO cylinder. This is used to add or subtract fuel on the PTO side if fine-tuning
is desired. The LO adjustment is not affected by the Trim value – trim is only used for the MD and HI settings. It
is best to tune the right (mag) cylinder first then make adjustments to the left (PTO) cylinder if necessary. If
more than a small amount of adjustment is required (greater than plus or minus 7), check for other problems first
(such as incorrect harness connections to the PTO cylinder).
00
Fuel adjustment value. Each setting can go from –99 to 127. Refer to the EFI tuning section for general tuning
guidelines. A value of 00 means no fuel adjustment will be made and the original injector signal will be passed
through unmodified. Negative values will reduce the fuel. Positive values will increase the fuel.
Note 1: Each number is equal to about 1/2% of the total available fuel. The maximum available fuel will vary
with each engine as well as with elevation and air temperature.
Note 2: It is possible to max the injector (duty cycle > 100%) before the adjustment setting is maxed! Pay
careful attention to EGT’s, O2 readings, and fuel pressure when running with engine mods that require a lot of
additional fuel!
3.3 Boost Screens (PSI Adjustments):
These menus adjust the fuel according to the pressure transducer. Fuel can be added or subtracted as follows:
Turbo Low:
M1L -4 -2 0 +1
TboL
00 00 00 00
-4: fuel adjustment when pressure is below -4 in Hg (normal idle) to -2 in Hg.
-2: fuel adjustment when pressure is between -2 and 0 in Hg
0 : fuel adjustment is centered at 0 psi.
1 : fuel adjustment is centered at 1 psi.
Turbo High:
M1L +2 +3 12 18
TboH
00 00 00 00
2: fuel adjustment is centered at 2 psi. If pressure is below 2, fuel is blended
with 1psi setting. If pressure is above 2, fuel is blended with 3psi setting.
3: fuel adjustment is centered at 3 psi.
12: fuel adjustment is centered at 12 psi.
18: fuel adjustment is centered at 18 psi. If pressure is below 18psi, fuel is
blended with 12psi setting. If pressure goes above 18psi, fuel is kept at
this setting.
Note: Be sure to add numbers to the higher boost settings even if you are not operating at higher boost. For
example, if the setting at 18 is set to 0 and your boost starts to go above 12, the fuel that is being added will drop to
zero as boost reaches 18psi.
Adjustments can be quickly made to each region in order to provide an optimal fuel curve based on boost.
The negative and low pressure settings (-4, -2, 0, 1, 3) can be used to fine-tune the fuel before and after positive
boost is reached.