Ginetta G55 GT4 User Manual
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Contents
Welcome to the Ginetta family ......................................................................................................................................... 4
The Ginetta G55 GT4 ......................................................................................................................................................... 5
Full Specification ............................................................................................................................................................... 6
Optional Extras .................................................................................................................................................................. 7
Recommended Tools and Equipment ............................................................................................................................... 8
Wheels and Tyres .......................................................................................................................................................... 8
Charged Gas Bottle ....................................................................................................................................................... 8
Air Lance With Correct Hose ......................................................................................................................................... 8
Air Jack / Gas Bottle Regulator ...................................................................................................................................... 9
ECU Download Lead ...................................................................................................................................................... 9
Dump Churn .................................................................................................................................................................. 9
Recommended Tool List .............................................................................................................................................. 10
Bodywork Removal ......................................................................................................................................................... 11
Removing The Bonnet ................................................................................................................................................. 11
Removing The Rear Body Section ............................................................................................................................... 13
Raising and Lowering The Car ......................................................................................................................................... 15
Raising The Car ............................................................................................................................................................ 15
Lowering The Car ........................................................................................................................................................ 16
Standard Car Setup ......................................................................................................................................................... 17
Dry Set Up ................................................................................................................................................................... 17
Wet set up ................................................................................................................................................................... 17
Anti-roll Bar Drawings ................................................................................................................................................. 18
Ride Heights ................................................................................................................................................................ 19
Set Up Adjustment Details .......................................................................................................................................... 19
Setting Platform Heights ............................................................................................................................................. 20
Tyre Pressures ............................................................................................................................................................. 20
Damper Settings .......................................................................................................................................................... 21
.................................................................................................................................................................................... 21
Damper Graphs ........................................................................................................................................................... 21
Pre-Start Checks .............................................................................................................................................................. 22
Fuel .............................................................................................................................................................................. 22
Spanner Check ............................................................................................................................................................ 22
Fluids ........................................................................................................................................................................... 22
Clutch and Brake ..................................................................................................................................................... 22
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Engine Oil ................................................................................................................................................................ 23
Power Steering ........................................................................................................................................................ 23
Coolant .................................................................................................................................................................... 24
Sills .............................................................................................................................................................................. 24
Controls and Start Procedure ......................................................................................................................................... 25
Steering Wheel Controls ............................................................................................................................................. 25
Dashboard Controls .................................................................................................................................................... 27
Starting Procedure ...................................................................................................................................................... 28
Paddle Shift Instructions ............................................................................................................................................. 29
Paddle Shift Maintenance ........................................................................................................................................... 29
Pre-Running Checklist ..................................................................................................................................................... 30
What To Look For Whilst Warming The Car Up .......................................................................................................... 30
Making Sure The Fan Comes On And Goes Off ........................................................................................................... 30
Check Tyres Are At Correct Cold Pressure .................................................................................................................. 30
Wheels Fitted Correctly .............................................................................................................................................. 30
Wheels Are Correctly Torqued .................................................................................................................................... 31
Fire Extinguisher Pin Is Out ......................................................................................................................................... 31
Workshop Preparation Checklist .................................................................................................................................... 32
Installation Laps and Final Checks................................................................................................................................... 34
Final Checks ................................................................................................................................................................. 34
Installation Lap ............................................................................................................................................................ 34
Bedding In The Brakes ................................................................................................................................................. 34
General Track Maintenance ........................................................................................................................................ 34
Race Weekend Checklist ................................................................................................................................................. 35
Periodic Maintenance ..................................................................................................................................................... 36
Cleaning Air filter ........................................................................................................................................................ 36
Draining The Catch Tank ............................................................................................................................................. 36
Fuel usage ....................................................................................................................................................................... 37
Defueling ..................................................................................................................................................................... 37
Engine Warranty ............................................................................................................................................................. 38
Life program .................................................................................................................................................................... 39
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Welcome to the Ginetta family
Congratulations on your purchase of the Ginetta G55 GT4 car and welcome to the Ginetta family.
Ginetta has been building British road and race cars since 1958 and, as one of the few remaining British sports car
manufacturers, are responsible for some of the most iconic race and road cars in history.
With a great reputation in international motorsport, Ginetta continues to take the lead in British race car
manufacturing, putting the UK at the heart of world-class motorsport. We are one of the most significant players on
the global motorsport scene, selling cars across the world and training the brightest stars in motorsport.
My vision for Ginetta is to provide affordable motorsport for all levels of driver and offer a genuine route for
progression from entry level competition, right the way through to international motorsport platforms.
We get to know each and every one of our customers, and look to support them throughout their motorsport
journey with us. This user manual has everything you should need to get out on track and begin your winning ways!
Enjoy,
Lawrence,
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The Ginetta G55 GT4
Homologated for the international stage, the Ginetta G55 GT4 is eligible for competition within the Michelin Ginetta
GT4 SuperCup, British GT4 and a variety of UK and European endurance and sprint racing series.
Introduced in 2011 to replace the ground-breaking Ginetta G50, the Ginetta G55 GT4 produces 355bhp from a 3.7
litre V6 engine. The driver cycles through the gears with a six speed sequential gearbox with pneumatic paddle shift
system.
As Ginetta’s most popular export car, the G55 GT4 car is racing on circuits around the globe and in varying
temperatures and terrain. With that in mind, recent modifications have been made with hot climate competition in
mind, increasing reliability and resale value.
The Ginetta GT4 car is a multiple class winner in the Dubai 24 Hour Endurance race, proving its might as one of the
front-running endurance racing cars on the market today, whist benefitting from being one of the most costeffective.
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Full Specification
With many components hand crafted in-house, Ginetta employs some of the UK’s brightest engineering and
manufacturing talent to bring to life the Ginetta G55 GT4 car.
The Ginetta G55 GT4 car has been created to be a winner across both sprint and endurance racing platforms, with an
impressive specification as outlined below. The Ginetta G55 GT4 car can be built to any one of the following three
specifications:
Standard / Super Cup Spec:
FIA approved steel spaceframe chassis with integral roll over structure
Sealed Ford 3.7 Litre V6 Engine
107 litre FIA Approved Fuel Cell
Independent double wishbone suspension system
Adjustable front and rear anti-roll bars
Two way adjustable Ohlin’s dampers
Adjustable rear wing
Six pot brake calipers with 378mm dia vented brake discs front
Four pot brake calipers with 330mm dia vented brake discs rear
Six speed sequential gearbox
M150 ECU and C125 Dash update
Lower wishbones running spherical bearings
Larger rear toe links
Larger convex side mirrors
Alterations to Standard Spec for GT4 Spec:
Smaller rear wing
Front splitter
Headlights
Front damper eye lengths
Alterations to Standard Spec for PWC Spec:
Rear wheel speed loom
Motec GPS
Motec C125 dash logging upgrade
Exhaust upgrade
Brake pressure sensors
Lambda sensors
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Optional Extras
There are a number of optional extras which can be added to the car both before and after purchase. These include;
Brake pressure sensor kit
Steering angle sensor kit
Motec GPS
Motec C125 dash logging upgrade
Damper pots
Standard fuel filler cap to replace the dry brake system (allows for the use of a fuel jug instead of a dump
churn)
Upgraded Lambda sensors (GT4 specification only)
Centre Lock kit (Endurance specification only)
11” Rear wheels (Endurance specification only)
Side exit exhaust (where noise limits allow)
Fuel pump out kit
Ohlins C spanners
Larger mirrors
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Figure 1.2
Recommended Tools and Equipment
The Ginetta G55 GT4 is designed to be straightforward to work on. This section is designed to highlight the various
instruments you may need when working on certain areas of the car.
Wheels and Tyres
For a race weekend it is ideal to have 4 ½ sets of wheels, as detailed
below:
Two sets of wets - one to use and a full spare set.
One set of slicks - mounted for testing, plus one front and
one rear spare.
One set of slicks - mounted for racing. Using the spare front
and rear rims from testing to have race spares on.
In total this amounts to nine front 9” wheels and nine rear 10”
wheels. Keep in mind the tyres are directional and have different rim
widths for the front and rear.
The barcode on each tyre shown in figure 1.1 is used to identify your tyre nomination at a race weekend. This allows
the event scrutineers to keep track of how many tyres you have used throughout both the race meeting and the
championship year.
Charged Gas Bottle
The car is raised and lowered using pneumatic air jacks. The
compressed air used to actuate the jacks is stored in a steel cylinder
gas bottle.
The gas bottle can be connected on the right hand side of the car,
shown in figure 1.2.
The gas bottles can be supplied by CES Europe Ltd.
(www.ceseuropeltd.co.uk / 01295 279558)
Air Lance With Correct Hose
Each car comes with an air lance, used to connect the gas bottle to
the car, as shown in Figure 1.3.
Figure 1.3
Figure 1.1
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Figure 1.4
Figure 1.5
Air Jack / Gas Bottle Regulator
Once the gas bottle has been connected to the car via the air lance, you are ready to raise the G55 off the ground.
In order to fully extend the air jacks, the regulator needs to be set to 34 bar of pressure, as indicated by the red
arrow in figure 1.4.
It is very important that you DO NOT exceed 40 bar of pressure as
this can cause damage to the air jack system.
The fittings and regulator can be supplied by CES Europe Ltd.
(www.ceseuropeltd.co.uk / 01295 279558).
ECU Download Lead
In order to download data from the car, you will need a download lead.
For cars with an M150 ECU, an Ethernet cable is supplied with the car along with the Motec software required to
download data directly to your laptop.
For cars with the M800 ECU, a UTC download lead is needed. This can be purchased directly from Ginetta.
(www.ginetta.com / 0113 385 4164).
Dump Churn
The standard Ginetta G55 comes with a dry brake filler only.
Therefore, a dump churn is an essential piece of equipment which
will be used for quick and easy refuelling of the car.
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Recommended Tool List
Standard Tools
• 1/4 socket set 5-15mm set
• 3/8 socket set 8-19mm set
• 1/2 Socket set 17-32mm set
• Allen key set 2-10mm set
• 1/2" wheel gun and 19mm socket
• 1/2" Torque wrench
• Spanner set 6-19mm
• Needle nose pliers
• Flush cut pliers
• Side cut pliers
• Screw Driver set
• Digital Vernier callipers
• 30cm Ruler
• Inside Vernier’s
• Inside circlip pliers
• Outside circlip pliers
• LED Torch
• Stanley knife
• Rubber hammer
• Ball pein hammer
• Compressor
• Air line
• Tyre Pressure gauge
• Tyre inflator
G55 Specific tools
• 22mm Spanner for smaller oil pipes
• 32mm Spanner for larger oil pipes
• 36mm Socket for Drive shaft nuts
• 27mm Socket for top gearbox fitting (To fill gearbox with oil)
• 2 x Ohlins C spanners
• Brake bleed bottle
• Air jack safety stands
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Bodywork Removal
The Ginetta G55 comprises three main pieces of bodywork; the bonnet, the rear section and the main body shell,
shown in the images below. Both the bonnet and the rear section can be removed with relative ease, as outlined
within this section.
Removing The Bonnet
The bonnet is retained with six fasteners; four Aero catches and two over centre style catches. The four Aero catches
are located on the top of the bonnet as indicated in figure 2.3.
Figure 2.3
Figure 2.1
Figure 2.2
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To release the Aero catches, first apply a downward force on the smaller area of the catch, highlighted in figure 2.4
below. This will allow the larger section of the catch to pop up. Lifting the larger section up retracts the locking pin
from the lug which is mounted to the chassis, as shown in figures 2.6 and 2.7.
The last two fasteners holding the bonnet are Protek over centre type catches. These are located to the side of the
front wheel on both sides of the car as shown in figure 2.8.
To unlock the catch, push the sliding block in the direction of the green arrow in figure 2.9, at this point the rear of
the catch can be lifted. The catch will now lose its tension and can be unhooked from the mount.
With all six fasteners released the bonnet can now be removed from the car.
Figure 2.4
Figure 2.5
Figure 2.6
Figure 2.7
Figure 2.8
Figure 2.9
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