Fenix Reference G12 User manual

Fenix Reference G12
1
Rev. 0.2.1
Fenix
Reference G12
Rev. 0.2.1
October 2020

Fenix Reference G12
2
Rev. 0.2.1
REFERENCE G12 is an high-competition, high-quality, 1/10-scale model car intended for persons aged 16 years and older with previous
experience building and operating RC model racing cars. This is not a toy; it is a precision racing model. This model racing car is not
intended for use by beginners, inexperienced customers, or inexperienced racers or by children without direct supervision of a
responsible, knowledgeable adult.
Before building and operating your REFERENCE G12, YOU MUST read through all of the operating instructions and instruction manual
and fully understand them to get the maximum enjoyment and prevent unnecessary damage. Read carefully and fully understand the
instructions before beginning assembly.
Contents of the box may differ from pictures. In line with our policy of continuous product development, the exact specifications of the
kit may vary without prior notice.
Take appropriate safety precautions prior to operating this model. You are responsible for this model‘s assembly and safe operation!
Please read the instruction manual before building and operating this model and follow all safety precautions
IMPORTANT NOTES –GENERAL
• This product is not suitable for children under 16 years of age without the direct supervision of a responsible and knowledgeable
adult.
• Carefully read all manufacturers warnings and cautions for any parts used in the construction and use of your model.
• Assemble this kit only in places away from the reach of very small children.
• First-time builders and users should seek advice from people who have building experience in order to assemble the model correctly
and to allow the model to reach its performance potential.
• Exercise care when using tools and sharp instruments.
• Take care when building, as some parts may have sharp edges.
• Keep small parts out of reach of small children. Children must not be allowed to put any parts in their mouth, or pull vinyl bag over
their head.
• Read and follow instructions supplied with paints and/or cement, if used (not included in kit).
• Immediately after using your model, do NOT touch equipment on the model such as the motor and speed controller, because they
generate high temperatures. You may seriously burn yourself seriously touching them.
• Follow the operating instructions for the radio equipment at all times.
• Do not put fingers or any objects inside rotating and moving parts, as this may cause damage or serious injury as your finger, hair,
clothes, etc. may get caught.
• Be sure that your operating frequency is clear before turning on or running your model, and never share the same frequency with
somebody else at the same time. Ensure that others are aware of the operating frequency you are using and when you are using it.
• Use a transmitter designed for ground use with RC cars. Make sure that no one else is using the same frequency as yours in your
operating area. Using the same frequency at the same time, whether it is driving, flying or sailing, can cause loss of control of the RC
model, resulting in a serious accident.
• Always turn on your transmitter before you turn on the receiver in the car. Always turn off the receiver before turning your transmitter
off.
• Keep the wheels of the model off the ground when checking the operation of the radio equipment.
• Disconnect the battery pack before storing your model.
• When learning to operate your model, go to an area that has no obstacles that can damage your model if your model suffers a collision.
• Remove any sand, mud, dirt, grass or water before putting your model away.
• If the model behaves strangely, immediately stop the model, check and clear the problem.
• To prevent any serious personal injury and/or damage to property, be responsible when operating all remote controlled models.
• The model car is not intended for use on public places and roads or areas where its operation can conflict with or disrupt pedestrian
or vehicular traffic.
• Because the model car is controlled by radio, it is subject to radio interference from many sources that are beyond your control. Since
radio interference can cause momentary loss of control, always allow a safety margin in all directions around the model in order to
prevent collisions.
• Do not use your model:
- Near real cars, animals, or people that are unaware that an RC car is being driven.
- In places where children and people gather
- In residential districts and parks
- In limited indoor spaces
- In wet conditions
- In the street
- In areas where loud noises can disturb others, such as hospitals and residential areas.
- At night or anytime your line of sight to the model may be obstructed or impaired in any way.
To prevent any serious personal injury and/or damage to property, please be responsible when operating all remote controlled models.
Failure to follow these instructions will be considered as abuse and/or neglect.
We have made every effort to make these instructions as easy to understand as possible.
However, if you have any difficulties, problems, or questions, please do not hesitate to
contact the Fenix support team at [email protected] . Also, please visit our Web site
at www. Fenix-racing.com or www.fenixracingshop.com or https://www.facebook.com/FenixRacing.it/
the latest updates, set-up information, option parts, and many other goodies. We pride ourselves on taking excellent care of our
customers.
Just a quick note…. Read the manual “before” and not after….

Fenix Reference G12
3
Rev. 0.2.1
Genuine CRC 3240 front end
Assembly it by the provided instruction sheet.
Note:
Please note that turnbuckles and plastic ball cup will be used when assembly Bag B.
Bag A
Front End
Bag B
Servo Mount

Fenix Reference G12
4
Rev. 0.2.1
Servo is not included,
Reference G12 need a
Mini servo.
Note the dimension of
the servo suggested
You can also use
Sanwa servo, with the
special servo holder.
Please note that the
Sanwa holder is
provided as option, or
special version for
certain market.
Use the 2 x HW003
M3x8mm button to
secure the FX-FU48
to the servo saver.
Use the 4 x HW012
M3x6 countersunk
screw to fix the
FX022 servo mount
Note: Servo and Ball
stud position affect
Ackerman angle.
Use it as setup
option.
Assembled group.
Servo saver should be
vertical when servo is
neutral.

Fenix Reference G12
5
Rev. 0.2.1
Using 2 x HW008
M3x6 Button, fix the
servo group to the
G12-7 servo holder.
Insert 2 washer under
the M3x6 screws
Take care to centre
the servo saver
toward the servo
holder.
Note:
Servo is held in place
by 2 (or 3 )15mm post,
according your servo
and chassis setting.
Fix the servo group to
the chassis using
15mm post
Insert the FX0074
3mm shims under the
15mm post
Fix the group to the
chassis (omitted in the
view) with HW007
M3x8 screws
If you are using the 2
post system you can
install the FU-FX48
using the M3x6
HW008 Button screw.
If you are using the 3
post system you can
install the FU-FX48
using the M3x10 grub
screw.

Fenix Reference G12
6
Rev. 0.2.1
There is an optional
shock locator which
allow to use the
damper with a more
gentle angle and with
several different shock
locations.
To use this insert the
HW033 M3x10
countesink hole, insert
the G12-8 shock
holder and fix it with
the M3 nylock.
Insert the M3x10
Hw004 in the 15mm
post and fix it.
When you use the
Sanwa option, the
fully option group, will
look like this one
Note: for you comfort, pre-thread both plastic ball cup before assembly the
turnbuckles
Using the CRC from
bag A made 2
turnbuckles as show
Note: use CRC plastic
ball cup on the
steering block
together the CRC red
low profile ball.
Fenix plastic ball cup
and FX-FU48 are to be
used on servo saver

Fenix Reference G12
7
Rev. 0.2.1
Bag C
Motor Pod
NOTE:
Before start to assembly the rear end of Reference G12, we strongly suggest you, to visit the Fenix Racing
Youtube channel and look the “V-link suspension setup” video, here is the link.
https://www.youtube.com/watch?v=SEwNQcn12A0
There, you’ll also found some video useful when dealing with the Fenix Gear Diff.
Using 3 x HW012 M3x6
countersunk screw fix
the V-link F2 to the
motor pod.
Insert 2 x male ball
stub into the V-link F2.

Fenix Reference G12
8
Rev. 0.2.1
Build 2 set of link using
2 x TR15 and 4 FX0037
- short
Keep this dimensions.
Fix the link over the V-
link F2
Using 4 x HW012
countersunk screws,
fix the motor holder to
the motor pod.
Tight the screws evenly
using an “X” pattern
Note: V-Link F2 is
omitted for sake of
clarity.
Insert the bearing into
the G12-C bearing
holder.
Note that the mark
should be on the same
position (vertex NOT
important) .
G12-C allow you play
with the wheelbase
giving +1mm

Fenix Reference G12
9
Rev. 0.2.1
Fix the G12-C to the
bulkheads with 2
HW003 M3x8 button
screw in the front
holes.
Rear holes, you need
to install the G12-10
brace and fix brace and
G12-C using HW029
M3x12 button screws.
Tight the screws evenly
using an “X” pattern
Note: the arrow show
a screw that might
interfere with some
motors. Please check.
Use the provided
HW008 M3x6 button
screw to install the ball
stud to the shock
holder.
Note: Wait to install
the shock holder to the
motor group.
Note:
Option for the Alu
version.
Insert 2 x 0.5mm shims
under the link sphere.
Not included in the
carbon version

Fenix Reference G12
10
Rev. 0.2.1
How about a cup of coffee now? You deserve it!
Bag D
Rear V-link and
common parts

Fenix Reference G12
11
Rev. 0.2.1
Prepare 2 sets –
note the position of
the spheres.
Use 2 x HW0014
M2x 6 screws and 2
x FX002 spheres
each
Spring holder
Note: spring
holder might have 2
different shape.
Hex one or round
one.
Prepare 2 side
spring group set as
shown
Assembly the 2 side
dampers as shown

Fenix Reference G12
12
Rev. 0.2.1
Note:
Use special attention when “thread” the grub screw in the carbon fibre, lubricate
the grub screw often during the operation and insert it slowly.
You might want to thread the carbon fibre using an M3 tap.
Prepare 2 mirror
like side element,
using G12-3
Fix the body post
using 1 HW003
M3x8 button screw.
Fix the FU-FX48
using 1 HW008
M3x6 button screw.
Insert the side
spring group into
the carbon fibre
Install 4 x FX0052
12mm post, using 4
x HW003 M3x8
countersunk
Install the V-link F1
using 2 x HW008
M3x6 countersunk
screw
Install the side
group as shown
using 4 x HW003
M3x6 button screws
and 4 HW003 M3x8
button screw.

Fenix Reference G12
13
Rev. 0.2.1
From Bag C, insert 2
x male stud.
Fix the short link
between V-link F1
and V-link F2
Note
Please, check in the
tech section about
the V-link settings.
Install the side link
you’ve prepared
before using 1
HW029 M3x12
button screw.
Insert the G56042
spacer between the
carbon side wing
and the link.
Use 2 x 2mm allen
to tight the sphere
link.
Check our channel on Youtube for some explicative video.
https://www.youtube.com/channel/UCDZqN09hr2EaI7qHCMjUcjQ
Now, lay the car on
a flat setup board
and make the final
fine tuning of the
links length. Chassis
and motor pod must
lay flat on the setup
board.
Take the proper
time for this setting.
Now you can couple
the motor pod to
the chassis group.
.
Side links can be
installed using 2 x
HW012 M3x6.

Fenix Reference G12
14
Rev. 0.2.1
Install the G12-4
shock holder, using
4 by HW008 3x6
button screw
Install now the side
dampers
Install the CRC front
end using 4 by G12-
K1 8-32” Titanium
screws
Insert between the
chassis and the
front end the G12-6
shims
Install the front
body post to the
bumper using 2 x
HW003 M3x8
button screws.
Fix the bumper to
the chassis using 2 x
HW004 M3 x 10
countersunk screws
and M3 Nylocks

Fenix Reference G12
15
Rev. 0.2.1
Bag E
Differential

Fenix Reference G12
16
Rev. 0.2.1
Bag F
Shock Absorber
Step 1:
Slide 1 E-Clip over the shock shaft
Insert the piston
Slide the second E-Clip over the shock shaft
Step 2:
Insert the O-ring into the preload nut
Step 3:
Insert the preload nut onto the shock body.
Take your time and not cross thread the nut
over the body.
Tip:
You might want to cut about 1/2 from the
oring. This will make the job much easier

Fenix Reference G12
17
Rev. 0.2.1
Step 4:
Lube the 2x6mm oring with some shock oil or
diff grease, insert it into the recess.
Lube the plastic insert with some shock oil or
diff grease, insert it into the recess, over the
oring.
Tight the bottom nut
Step 5:
Lube the shock shaft with some shock oil and
insert it into the shock body
Step 6:
Fill the shock with your favorite shock oil and
bleed the air bubbles moving the shaft up –
down slowly
Step 7:
Install the shock bladder and tight the upper
cap.
Clean the excess of oil
Step 8:
Install the spring and the shock bottom mount.
Secure it on the shaft with the M3x3 set screw

Fenix Reference G12
18
Rev. 0.2.1
Tech area
REFERENCE G12 represent a major breakthrough in the 1/12 class. Nothing comes close to this 1/12
model.
We’ve had several drivers developing the car, from Club racers to ETS and Nationals A-main finalist,
and we’d like to thank all of them for the time and dedication they put in this project.
Front End: Choosing the proven CRC 1/12 front end, allows you to use an easy and proven front end
system that allows you to alter camber, caster and dynamic caster.
Rear End: V-link: we spent quite a lot of time developing this rear end, using different brand of tires,
driving on carpet and asphalt.
V-Link suspension has the unique ability to alter the roll centre position.
You can alter significantly the amount of rear grip by changing the roll centre position.
B2 is very much like a common pivot rear suspension.
A1 give the lowest roll centre.
Most of the time, you’ll find a very comfortable setting using A2 or A3 position
Of course the 2 connection link must have the same length!!!

Fenix Reference G12
19
Rev. 0.2.1
Millimetre per revolution aka Rollout
Pancar (1/10 –1/12) are using foam tires, where ratio need to be adjusted after each run, the system is MM
(millimeter) Per Revolution aka Rollout.
It means you want to check how many mm the motor move each revolution.
You need to know:
Diameter of tire (easy take your Vernier and check it…) :
Spur size and Pinion size
Diameter x 3.14 = perimeter
Tire diameter 41 x 3.14 = 128,74mm ok… keep it..
Spur / pinion 81 /26 = 3.11 (gear ratio)
128,74/3.11 = 41.39mm
This means that every time your motor spins, the rear wheel makes 41.39mm.
To keep constant the performance, you’ve to adjust the gear ratio according the wheel diameter.