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Tatuus T318 - User Manual

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T318 TECHNICAL MANUAL
Release 3.00 (22/06/2020)

Table of Contents

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Summary

General Information

Releases

Details modifications from previous versions and release history.

Technical Contacts

Lists contact information for various car component suppliers and manufacturers.

General Agreement and Warranty

Outlines Tatuus' terms, conditions, and warranty limitations for motorsport goods.

Overview

Provides a summary of the T318 chassis specifications and components.

Mileage Chart

Specifies recommended inspection and replacement intervals for chassis components based on mileage.

Safety

Survival Cell

Describes the survival cell as a main safety component requiring inspection and authorized repair.

Extractable Seat

Details requirements for the removable seat and harness strap routing.

Driver Padding

Specifies regulations for driver padding thickness and placement in the headrest and leg areas.

Seat Belts

Mandates secure fixing and compliance with FIA standard 8853-2016 for seat belts.

Front Impact Structure

Outlines the importance of the front impact structure and its maintenance.

Retention system adjustment

Explains the proper setting of retaining pins for correct front impact structure installation.

Front nose repair specification and procedure

Details the procedure for repairing or replacing the front nose section within specific limits.

Rear Impact Structure

Emphasizes the need for inspection and repair of the rear impact structure.

Side Impact Structure

Highlights the need for inspection and repair of the side impact structure.

Halo

Provides installation instructions for the HALO safety device.

Installation procedure

Details the step-by-step process for installing the HALO, including general notes on fasteners.

Disassembly procedure

Outlines the steps for safely disassembling the HALO structure.

Steering Column

Describes the steering column's collapsible section and inspection after impact.

Wheel Tethers

Recommends replacement criteria for wheel tethers based on age, accidents, or damage.

Rear Crashbox Tethers

Provides recommended replacement criteria for rear crashbox tethers.

Fire Extinguisher

Explains the operation and checks for the fire extinguisher system before and during use.

Fuel Cell

Specifies the lifespan and inspection requirements for rubber fuel bladders.

Rain Light

Details the operational requirements and modes for the rain light system.

Clutch Disengagement

Outlines a procedure to move the car in case of a sudden stall.

FIA Throttle Fail Safe

Explains the throttle fail-safe algorithm and its conditions for activation.

Chassis

Workshop Tools

Details necessary tools and procedures for jacking the chassis.

Front Jacking

Provides guidance on safe front jacking points and procedures for the chassis.

Rear Jacking

Specifies safe rear jacking points for the chassis.

Setup Tools

Provides diagrams and reference points for chassis setup.

Front references

Illustrates front suspension reference points and dimensions.

Rear references

Illustrates rear suspension reference points and dimensions.

Wheel hub

Shows diagrams and dimensions related to the wheel hub.

Standard Set-up

Presents a standard set-up sheet for road course configuration across various parameters.

Road Course Set-Up

Details the standard geometry, suspension, aero, brakes, and tire settings for a road course.

Weight and ballast

Explains ballast installation locations on the T318 chassis with guideline drawings.

Controls and Display

Describes the cockpit controls and dashboard display functions.

Cockpit Controls

Details the function of each button and switch on the main power and starter panel.

Steering Wheel Controls

Explains the function of each button and control on the steering wheel.

Steering Wheel Display

Describes the information displayed on the steering wheel screen and LED indicators.

Page #1: Driver page

Shows the parameters displayed on the driver page of the steering wheel screen.

Page #2: Setting page

Summarizes parameters useful for sensor calibration and setting.

Page #3: Logger page

Details the channels logged by the data system for zero procedure checks.

Page #4: Electric Power Distribution

Illustrates the car's power system and current draw for each line.

Page #5: Engine warmup

Presents engine parameters useful for starting and warming the engine.

Page #6: Gearbox page

Displays gearbox parameters for testing and warming.

Driver installation

Covers aspects of fitting the driver into the chassis.

Steering Wheel Position

Explains how to adjust the steering wheel depth using spacers.

Pedals

Notes the independent placement of the three pedal units.

Brake pedal

Details brake pedal rest position adjustment and recommended maintenance.

Throttle pedal

Explains throttle pedal rest position, stroke adjustment, and potentiometer checks.

Clutch pedal

Describes clutch pedal adjustment and theoretical strokes for actuation.

Heel rest

Provides a generic guideline for bolting a heel rest to unused holes.

Brake Bias

Explains the brake bias knob location, adjustment, and effect on front balance.

Aerodynamic

General Notes

Defines aerodynamic terms and lists factors affecting aerodynamic loading.

Front Wing Setting

Details how to measure front flap angle and provides a table of settings.

Rear Wing Setting

Explains rear flap angle measurement and provides a table of settings.

Aerodynamic Reference Setup

Defines baseline aerodynamic setup (datum) and coefficients.

Ride Height Sensitivity

Reports percentage changes in aero from ride height adjustments.

Wing Sensitivity

Introduces tables showing aero changes based on flap angle variations.

Wing Sensitivity, both the front flaps on, without gurney flap installed

Table showing aero percentage changes based on front and rear wing settings.

Wing Sensitivity, both the front flaps on, with gurney flap (190 mmx15 mm) installed

Table showing aero percentage changes with front flaps and gurney flap installed.

Wing Sensitivity, only lower front flaps on, without gurney flap installed

Table showing aero percentage changes with only lower front flaps engaged.

Wing Sensitivity, only lower front flaps on, with gurney flap (250 mmx15 mm) installed

Table showing aero changes with lower front flaps and a gurney flap.

Diffuser

Discusses diffuser tire cut-out variations and spat fin repair.

Suspensions

Measurement Standard

Defines key measurement terms like Reference Plane, Ride Height, Toe, Camber, and Castor.

Geometry Adjustments

Details how to adjust suspension geometry.

Ride height adjustment

Explains how to adjust ride height using shims and the resulting effect.

Camber adjustment

Describes camber adjustment by changing shims between Ackermann and upright.

Toe adjustment

Explains toe adjustment via steering arm length and provides turn-to-degree conversion.

Caster adjustment

Details caster measurement and adjustment procedure.

UMP adjustment

Explains UMP adjustment for longitudinal pushrod placement and its effect on weight transfer.

Vertical stiffness

Lists available spring stiffness options and their ground stiffness values.

Front vertical stiffness

Details front spring stiffness options and their effect at the wheel.

Rear vertical stiffness

Lists available rear spring stiffness options.

Dampers

Describes the standard KONI 2812 dampers and their adjustment procedures.

Rolling stiffness

Presents motion ratios and available options for anti-roll bars.

Front roll stiffness

Details front anti-roll bar motion ratio and available options.

Rear roll stiffness

Details rear anti-roll bar motion ratio and available options.

Suspension Geometry

Provides coordinate data for front and rear suspension pickup points.

Front suspension geometry

Lists coordinates for front suspension pickup points relative to the reference plane.

Rear suspension geometry

Lists coordinates for rear suspension pickup points for ALFA and RENAULT configurations.

Anti-effects

Shows anti-effects data for front and rear suspension settings.

Front

Details anti-effects for the front suspension under specific settings.

Rear

Lists anti-effects for various rear suspension pickup positions.

Suspension maintenance

Covers maintenance procedures for suspension components.

Upright Maintenance

Provides warnings and details for upright maintenance, including a modification.

Upright Disassembly

Outlines the step-by-step process for disassembling the upright.

Upright Assembly

Details the procedure for reassembling the upright and its components.

Steering

Steering Geometry

Describes the standard and optional steering gear ratios.

Standard ratio: 8 teeth pinion

Specifies the standard steering ratio and its value.

Option ratio: 7 teeth pinion

Details the optional steering ratio and its value.

Steering maintenance

Provides installation drawings for steering maintenance.

Wheels and Tires

Wheels

Specifies front and rear wheel sizes and tightening torque.

Tires

Introduces tire specifications and characteristics.

Giti Tires

Lists tire sizes and spring rate data for Giti tires.

Pirelli

Details Pirelli tire static and dynamic measurement procedures.

Static measurements

Explains static tire measurements and provides relevant definitions.

Dynamic measurements

Describes dynamic tire characterization based on speed and load.

Operating instructions

Provides instructions for tire pressure and temperature management before and after runs.

Technical Limitations - F3 Regional

Outlines technical limitations and setup parameters for F3 regional tires.

Static measurements

Provides static measurement data (width, circumference) for slick tires.

Dynamic measurements 230;570-13 x10.0 J SLICK @ 1.4 bar (20.5 psi), CA 0.0°

Presents dynamic measurement data for specific slick tire size and pressure.

Static Radial Deflection 230;570-13 x10.0 J @ CA 0.0° SLICK

Shows static radial deflection data for a specific slick tire at 0° camber.

Static Radial Deflection 230;570-13 x10.0 J @ CA 3.0° SLICK

Shows static radial deflection data for a specific slick tire at 3° camber.

Dynamic measurements 300;590-13 x12.0 J SLICK @ 1.4 bar (20.5 psi), CA 0.0°

Presents dynamic measurement data for a wider slick tire size.

Static Radial Deflection 300;590-13 x12.0 J @ CA 0.0° SLICK

Shows static radial deflection for a wider slick tire at 0° camber.

Static Radial Deflection 300;590-13 x12.0 J @ CA 3.0° SLICK

Shows static radial deflection for a wider slick tire at 3° camber.

Hankook

Provides specifications for Hankook tires, including size and recommended settings.

Tyre Characteristics (Static measurement)

Details Hankook tire dimensions and characteristics.

Dimension

Specifies recommended rim width and outer diameter for Hankook tires.

Static Radial Deflection (Kv)

Presents static radial deflection data for Hankook F200 slick tires.

Brake System

Technical Notes

Provides technical notes on brake system components.

Balance bar

Explains the effect of the brake bias knob on front brake balance.

Brake System Setup

Suggests master cylinder configurations and shows front brake balance tables.

Brake System Bedding-in

Details the procedure for correctly bedding in the brake system for optimal performance.

Cooling System

Fuel System

Fuel Tank

States fuel tank capacity and recommends protection for the fuel bladder.

Fuel Drain Procedure

Refers to steering wheel controls for activating the fuel pump for draining.

Fuel Coupling

Details the dry-break fittings used for the fuel feeding line and tank port.

Fuel Machine Options

Mentions an optional system for a breather valve dry coupled connection.

Oil System

Alfa Romeo Oil Tank

Details the procedure for measuring the oil level in the Alfa Romeo oil tank.

Renault Oil Tank

Explains the procedure for measuring the oil level in the Renault oil tank.

Toyota Oil Tank

Mentions the oil tank location for the Toyota engine version.

Electric System

Overview

Splits the wiring loom into four main parts and lists power system components.

Main Switch

Describes the master switch actuation and connection schematics.

Battery and Alternator

Discusses the battery's importance, installation, and charging behavior.

Battery installation

Provides recommendations for battery installation, padding, and cable connections.

Jump battery

Advises on using a jump battery and connection timing.

Powerbox

Explains the PSD9 powerbox function and lists configurations for different engines.

Alfa Romeo configuration

Details the power distribution lines and user lists for the Alfa Romeo configuration.

Renault configuration

Lists power distribution lines and user lists for the Renault configuration.

Toyota configuration

Notes that the Toyota engine does not use the standard powerbox.

Wiring Loom

Refers to external files for electrical schematic details.

Radio plug

Describes the radio connector providing 12V power and steering wheel switch signals.

Sensors

Lists chassis sensors and further available options like ADR and GPS.

VREF List

Provides VREF lists for Alfa Romeo and Renault configurations.

Alfa Romeo configuration VREF list

Maps VREF channels to sensor inputs for Alfa Romeo.

Renault configuration VREF list

Maps VREF channels to sensor inputs for Renault.

Engine

Transmission

Ratio Chart

Lists ratio options for final drive, secondary shaft, crown wheel, and reverse gear.

Gear option 01

Provides gear ratios for option 01 and a speed vs. RPM graph.

Gear Option

Lists gear ratios for the 'Gear Option' and a speed vs. RPM graph.

Differential

Describes the ZF self-locking differential and its available ramp set options.

Lubrication

Specifies oil capacity, drain frequency, and viscosity.

Particular Precautions

Warns against mixing differential oils and adding additives.

Storage and Use

Provides guidelines for storing and using oil bottles to prevent contamination.

Washing under pressure

Advises sealing openings when washing the rear differential under pressure.

Glue components

Lists glue components and warns to use only 'Loctite' brand parts.

Special Tools

Lists special tools, their part numbers, and descriptions for gearbox maintenance.

Gear maintenance

Covers the removal and refitting procedures for gearbox gears.

Removal

Details the steps for removing gearbox components.

Refitting

Outlines the process for refitting gearbox components, including torque specifications.

Selector fork adjustment

Explains how to check and adjust selector fork tuning using a special tool.

Differential

Covers removal, dismantling, and refitting procedures for the differential.

Removal

Outlines the steps for removing the differential assembly.

Dismantling the differential elements

Details the process for dismantling the differential components.

Refitting the differential elements

Explains the procedure for reassembling differential elements.

Crown-wheel replacement

Covers the replacement procedure for the crown wheel.

Secondary shaft

Details the removal of the secondary shaft and related components.

Crown

Explains the procedure for removing and fitting the crown wheel.

Exploded Views

Refers to the spare catalogue for part numbers and shows exploded views of components.

Layshaft

Shows an exploded view of the layshaft with part numbers and torque values.

Mainshaft

Displays an exploded view of the mainshaft with part numbers and torque values.

Barrel and forks

Shows an exploded view of the barrel and forks assembly with part numbers and torque values.

Differential

Displays an exploded view of the differential with part numbers and torque values.

Main case

Shows an exploded view of the main case with part numbers and torque values.

Selection and reverse

Displays an exploded view of the selection and reverse mechanism with part numbers.

Oil pump

Shows an exploded view of the oil pump with part numbers and torque values.

Rebuilding of the gearbox

Covers procedures for gearbox rebuilding by Sadev or privately.

Sadev workshop rebuilding.

Outlines the process and administrative procedures for Sadev workshop rebuilding.

Private revision

Mentions that parts for private revision are sold by SADEV sales service.

Shift System

System Overview

Describes the GCU, GCC, and ESA units and their roles in gear shifting.

Gearshift control

Explains how the semi-automatic gearshift is controlled by vehicle parameters and critical sensors.

ESA resting position

Details how the ESAP parameter on the display shows the gear actuator's rest position.

ESA maintenance

Reminds users to regularly check the AV mounting of the ESA and inspect rubber rings.

Electronic & Software

Electronic

Directs users to engine builder documentation for electronic details.

Annexes

Tightening Torque

Provides tables for tightening torques based on thread size and grade in Nm and Lbs-ft.

Tatuus T318 Specifications

General IconGeneral
BrandTatuus
ModelT318
CategoryAutomobile
LanguageEnglish