ThunderMax PN#309-380 Sportster User Manual
Page 6
configured to, and the ThunderMax ECM connection
displacement. Stroke and cam timing influence engine
port located
screw, rotate
seal). Open
under the retainer plate (loosen retainer
pumping pressures. The correct shape of spark curves
retainer plate and open rubber weather
in the base map will be best matched by engine stroke.
the TMax Tuner software and turn the
Throttle Body / Injector Size. Choose the throttle body
bike’s ignition and handlebar switches to the on/run
positions. Follow the prompt instructions for installing the
driver. Next, go to the menu bar and select [Tuning
Maps] [Module Configuration] [Module Service Data].
Under the Module Information tab, click [Edit VIN/SRN]
and enter your motorcycle’s serial number in CAPITAL
LETTERS, click [OK] then [Close]. Turn off ignition;
once your software, map databases and USB driver are
verified as up-to-date, move to selecting your base map.
Selecting A Base Map File from the Database
Note: The map selection process for this ThunderMax is
the same as the original ThunderMax system; if you are
familiar with the map selection process, select your map
and proceed to Initializing (step 7, page 6).
If you
purchased a pre-mapped system, you may also skip
these steps and proceed to Initializing (step 7).
The TMax Tuner EFI Map
Database will help you
chose a Base Map for
your application. To open
the Map
Database, select from
the toolbar [EFI Maps] [EFI Map Listings (Throttle
Cable)].
Available base maps
will be shown (if the
[Show All Maps] button
at the lower left of the
screen
is
highlighted,
click it to clear any
filtered maps so all
maps will be shown).
You will now be able to
select the closest Base
Map for your engine
combination. Please
read the
following
section on
Key
Elements before
proceeding; this will help you quickly narrow down the
selection of available Base Maps and find the right one
for your application.
Base Map “Key Elements”
The reason for selecting a Base Map by “Key Elements”
is to find the closest Base Map match available for your
combination, identified by the most critical components.
These include:
Engine Size. A correct match to the engine’s stroke is
more important than an exact match of engine
and injectors being used for your application (most
applications will be “stock” unless performance parts
have been installed).
Camshaft. Many popular short duration aftermarket
cams (less than 240° intake duration) perform well when
using a stock-cam base map. W ith broader timing cams
(more than 240° intake duration) you may find that
choosing a base map calibration developed for an
aftermarket cam to be a better choice.
Exhaust System Design. There is no need for concern
if an exact brand match does not appear in the Base
Map library.
Simply select the Base Map with the
closest style of exhaust system (Slip-ons, 2:1, True
Duals). Choosing the closest style will yield excellent
results. Group your exhaust system in one of the
following three categories:
Factory Head Pipe with Crossover: Dual exhaust
systems with a cross over pipe that connects the front
and rear exhaust pipes. Typically used with accessory
slip-on mufflers. Bikes with stock catalyst-equipped
mufflers require maps designed for use with
catalyst-equipped systems or damage to the catalyst
can result. ThunderMax maps for use with 96” and
103” internally stock engines are catalyst-safe maps.
2 into 1: Both head pipes converge into one collector.
True Dual Exhaust: 100% separate exhaust pipes.
ThunderMax’s AutoTune system allows you to choose a
Base Map that isn’t an exact match of components and
still have excellent results. Even if your combination isn’t
listed, select the closest Map match and let the
AutoTune create your custom Base Map while you ride.
The closer the match that the Base Map is to your
combination, the faster the system will achieve the
desired AFR Targets. This simply means less time to
establish and maintain a great tune. Once you have
allowed the system to establish custom AFR fuel-flow
adjustments, you can use the AutoMap function to
create an all-new Base Map based upon the AutoTuned
learned adjustments. To use the AutoMap feature, see
the tuning manual for the procedure on how to create
your custom base map using AutoMap.
Base Map File Browsing / Selection
W ith your Base Map Definitions window open, you may
begin narrowing down the list of maps for your
application. To sort the map files by a particular key
element, left-click on the column heading to arrange the
Base Maps in ‘key element’ alpha/numeric order. All of
the columns can be sorted in this manner for filtering
purposes. Filter the maps to identify the base map that
best matches your application by following these steps:
309-380 / 309-382 Installation /
Setup Guide V201
4.9.23
6