IRC SGRACE-CUT User manual

SGRACE-CUT by
logThe SGRACE is our latest high performance design.
We have put an enormous amount of energy in the form
of time, technology and kno ledge to create a reliable
and innovative product. It is a "Strain Gauge" sensor style
that ensures long lasting performance. To bring this
product into reality e have used all the manufacturing
tricks, electronic formulae and rendered a keen eye on
soft are support to make this happen. This product is
encouraged to use in a on a closed circuit only. It is not
homologated for road use. The manufacturer of this
product is not liable for any injury or damage to the
operator, vehicle, or third parties from the use of this
product. MADE IN ITALY
DISCLAIMERS
System setup must al ays be done hen bike is at
complete halt and is parked on stands.
A rong setting could affect, partially or fully, the
system’s effectiveness, ultimately damaging the
gearbox.
System setting is the responsibility of the user and not
of the manufacturer. While fixing sensors, take extra
caution to not damage hile scre ing and
unscre ing the bike. It is a delicate product.
The use of this product is at the total discretion of the
private parties.
Each system modification, both of hard are and
soft are, as ell as harness or single components,
could affect the system functionality. It can do
potential damage or cause injury to the user, vehicle,
or to third parts and this ill negate the product
arranty.
Installation must be done carefully It is mandatory
that you follo instructions provided in the manual
book. After installation it is highly recommended that
you do proper test of the product before riding on.
Installation is an extremely crucial setup for system
efficiency. Be sure it is done by competent and
specialized mechanic.
This manual is issued on Feb 21st 2019 in Rev. 4.0. It is
the end user’s responsibility to periodically visit the
ebsite .irccomponents.it in order to check for
revised and updated manual guides.
1. SENSOR INSTALLATION
WARNING: SGRace ECU acts on the cut on
+12V lines. If connected to the ignition harness
of CDI engine it can damage the ECU of the
SGRACE. In such a scenario either contact the support
team for a solution or connect the system to injector (no
plug&play harness included).
Sensor has "magic threads" i.e. both right and left.
Connect the sensor (LABELED SENSOR) to the
provided shiftrod. Cut it if necessary. Tight the nuts and
the eventual grubs to avoid disconnections and loss of
functionality due to vibrations.
Install sensor and rod ith uniball links on both ends,
most bikes have uniballs stock, check that the shiftrod
does not rub or touch anything. Put sensor far from very
hot parts. Make sure ire has a slight bend/loop so it does
not tighten up and pull at the sensor during up or do n
shift.
Warranty does not co er ripped out wires.
WARNING: To adjust sensor positioning, act
on the proper planes. Sensor failure could occur
of acting on the cover.
2. DISPLAY
After s itching on the system, the ECU makes a general
check and, if passed, the display ill sho the firm are
version.
WARNING: Do not start any process, setting or
action on sensor until the above routine is
completed.
When the pre load threshold has passed (par. 3.3), the
display ill sho "--" .
In case of failure, the display ill sho an "E" follo ed
by a number. Give this code to the assistant.
3. INITIAL SET UP
To set up initial program press both the buttons to enter
into the system.
Push lo er button to scroll the menus forward.
Push the upper one to scroll the menus backwards.
Press and maintain the lo er button to enter into the
various menus.

To confirm the setting and exit from the menu and
undermenues, press upper button.
System ill go out of programming session if no button is
pushed except the “r” menu. Also during programming,
the quickshifter is disabled.
The sytem is provided fully orking. Just properly set
“CE” (par. 3.8) to immediately enjoy the blipping.
Ho ever all parameters are set in safety ay. Every rider
must properly adapt the system to his o n riding mode.
WARNING: Act only on the following setup
options.
3.1 Cut Time programming " t "
Default setting is 60ms. It can be adjusted ithin
20÷99ms.
3.2 Choice of cut type " tp "
Choose "F" to see fixed time; "U" to automatically
adjustable time. In this case ECU modify the cut time in
function of rpm, acceleration and makes a "smooth" cut
to ease the shock loads on the gear box and chain. It also
reduces loss of traction at upshift.
3.3 Pre Load adjustment to " L "
The default setting is set at "12" and it can be customized
according to the need. Keep the ignition on and engine off
to try to select the upper gear. Shift lever should move
through the spring load in gearbox until gear resistance is
felt. If rpm is above the set value at par. 3.8, the panel
LED ill display "--" for a hile. If this happens too
early or too late, then consequently change the preload
set.
3.4 Actual Load displaying " S "
To read the value of actual load select this menu. This
feature is also useful for preload adjustments and to check
gearbox ear and is convenient to maintain the system.
3. Max Load displaying "--"
At this point, pressing and holding the lo er button, the
display ill sho blinking "--" for about 10s. After ards
it ill sho the max load value registered in this period.
This feature is useful for preload adjustment and for
gearbox reliability and maintenance.
3.6 Actual rpm displaying " r "
If you chose setting mentioned in 3.2 as "U", then rpm as
measured by the ECU ill be displayed. Please cross
check if it is aligned ith the real engine rpm.
3.7 rpm adjuster " rS "
The rpm visualization (3.6) can be adjusted by the
follo ing method. Use this feature to multiply or divide
the rpms as considered by the SGRACE. Divided ".2" and
".4", Multiplied "2" and"4".
3.8 Minimum rpm limit " Sr "
Set rpm belo hich the system is not cutting.
Visualization: /1000.
3.9 Type of analog output " dS "
If your system has the analog output function then, this
function allo s you to set the type of output: "dC": 0÷5V
ith 0 load at 2.5V. "dU": 0÷5V ith 0 load at 5V. "DD":
0÷5V ith 0 load con at 0V.
3.10 Bottom/Upper limits "dr"
If your system has the analog output, you can set value as
"5"=±50Kg, or "10"=±100Kg.
3.11 Pushing/Pulling"CE"
"C" means Pushing and "E" means Pulling.
3.13 Smoothness "rr"
If you chose for dynamic cut "U" (Refer 3.2), higher
values mean increase in smoothness. Initially set the ideal
upshift rpm. Visualization: /1000.
4. CONNECTIONS
Connect the proper harness you find in the kit to the
ignition coils. No matter the order. Just conenct to all
coils. Connect Black ire to the battery ground.
Other ise consider that Red ire is the positive IN (and
is po ered +12V), White is the positive OUT, Blue is
Rpm and Black is ground.
On the supplied harness, Red ire is the positive IN (and
po ering +12V), Orange is the positive OUT, Blue is the
rpm to be connected to a negative pulse ire of a coil or
to another rpm signal.
5. ANALOG OUTPUT FOR DATA LOGGERS
An unused Green ire comes out from the connector.
Connect it to your data logger or shifting ECU if you
have one. Output is 0÷5V. Refer to the paragraph 3.9 and
3.10 for further information on setup.
6. TROUBLESHOOTING
6.1 System continuosly cut or blipping even if the foot
isn’t acting on the pedal: check the sensor. Tight the nuts
and the eventual grubs to avoid disconnections and loss of
functionality due to vibrations as per Par.1.
6.2 System orks in reverse manner: check and properly
set “CE”.
7. WORKING CONDITIONS
8÷17.5V; -20°C÷+95°C
Enjoy your choice. We value your business ith us.
For any questions or troubleshooting queries, please
contact us at:
[email protected] Ph. ([phone]