Car 2018


 

 

 

 

Halcyon is our 2018 contender, the concept launched at a special event in early 2018. Halcyon is still in the manufacturing stage. you can find our target specifications below.

General 
Overall Length, Width, Height2755mm, 1427mm, 1285mm
Wheelbase1530mm
Track1220 mm Front / 1100 mm Rear
Weight255kg (Target)
Power75bhp (Target)
Ergonomics 
Driver Size AdjustmentsFixed seat, steering wheel & Pedal box, variable padded seat inserts, variable pedal cover sizes
Seat (materials, padding)Moulded 1 piece carbon fibre with foam inserts
Shift Actuator (type, location)Chassis mounted sequential shift stick
Clutch Actuator (type, location) Foot lever, pedal box mounted
Powertrain 
Manufacturer / Model 2005 Honda CBR 600 F4i
InductionAtmospheric induction
Fuel Type98 octane petrol/E85 (FlexiFuel)
Max Power design RPM8,000 rpm
Max Torque design RPM3,000 rpm
Fuel System (Sensors)Honda CBR fuel injection system using DTA-Fast S60 ECU
Fuel System SensorsMagnetic crank & Cam trigger, Water temp, Air temp, Manifold pressure, Throttle Pos.
Fuel Pressure70psi (Static)
Injector locationInlet manifold runners
Intake Plenum volume2.5 litre body, 3 litre including taper from restrictor, 220mm runners with a 20mm diameter and custom intake shaping
Effective Intake Runner Length220mm
Exhaust header designStainless steel header
Ignition TimingDigitally programmable by engine management system
Coolant System and Radiator locationDuel Radiators with radiator mounted fans, located in ducted side pods & electric water pump
Fuel Tank Location, TypeFloor mounted aluminium baffled sheet tank mounted behind driver's seat
SilencerBespoke stainless steel 4-2-1 with 22mm diameter piping, centre exit silencer
Drivetrain 
Drive Type#520 Chain
Differential TypeDrexler Automotive FSAE limited slip differential with tripod drive cups
Half shaft size and material19.7mm diameter EN24 , splined solid shafts, custom 3D printed sprung guides
Joint typeGKN tripods with custom CNC outer receivers
Chassis 
Chassis ConstructionSteel tube space frame with welded bulkhead & aluminium firewall
MaterialC350 mild steel tube - cold drawn seamless
Targets (Torsional Stiffness or other)2700 Nm/ deg torsion
Torsional stiffness and validation methodPhysical testing via student built test rig
Bare frame weight with brackets and paint33kg
Crush zone materialAluminium foam construction (TBC)
Joining methodTIG welded
Crush zone length250mm TBC
Brake System / Hub & Axle 
Master CylinderWilwood Compact Master Cylinders, Mechanical bias bar, for brake balance.
Callipers2 x AP-Racing single lightweight aluminium billet Callipers calliper(front) & Willwood PSG-1lighweight alloy (rear)
Hub BearingsOpposed Schaeffler Tapered Roller bearings with single lip seal on outside face (50mm x 80mm x 22mm)
Upright AssemblyCustom 6061 T6 Aluminium CNC machined
Axle type, size, and materialCustom 6061 T6 Aluminium CNC Machined live spindle (front), CNC
Suspension Parameters 
Suspension TypeUnequal length A-Arms. Push rod (rear)/ Pull rod (front) actuated Pneumatic spring/ damper units
Tyre Size and Compound Type7.2/20.0-13 Avon, A92 Compound
Wheels7.0x13 ProRace1.2 billet Al machined rims
Design ride height (chassis to ground)35 mm
Suspension design travel28 mm bump/ 28 mm droop
Static Toe and adjustment methodFront +0.5 deg/Rear -0.5deg adj. by tie rods
Static camber and adjustment methodFront -2deg/Rear -1deg, adj. via shim plates on upright
Front Caster and adjustment method5 degrees, non-adjustable, 17 mm trail
Front Kingpin Axis8 degrees non-adjustable, 8.5 mm offset
Static Ackermann100% Ackermann, via modified Formula 7 carbon rack
Roll centre position static58 mm above ground (front), 72 mm above ground (rear)
Steer location, Gear ratio, Steer Arm LengthRear wheel steer, in line with lower A-arm and in rear of steering axle line, rack positioned to minimise bump steer and steering force required