Originally called Crawford F4, this F4 single-seater was selected by the FIA and SCCA Pro Racing to be the exclusive model in the F4 U.S. Championship since 2016. Its carbon fibre chassis combines speed and safety.

Equipped with a 2-litre Honda engine pushing out 160 bhp and Pirelli tyres, it is renamed the Ligier JS F4 from the 2018 season onwards and an evolution will be added improving driver safety even further.

Other engines can also be installed in the Ligier JS F4 depending on the championship.

Technical sheet

CHASSIS

2016 F4 Specification carbon composite monocoque
Anti-intrusion side panels
Adjustable wings front and rear
Width: 1750 mm / 69''
Wheelbase: 2745 mm / 108''
Weight: 570 kg / 1254 lbs

BODYWORK

Lightweight composite bodywork

SUSPENSION

Double wishbone, front and rear
Pushrod adjustable ride
Adjustable anti-roll bars

SHOCKS

JRi 2-way adjustable dampers
Coil over dampers

GEARBOX

Sadev 6-speed sequential
Pneumatic paddle shift

STEERING

Rack and pinion steering
Quick release steering wheel
Height adjustable column
Safety collapsible steering column

ENGINE

Honda - 2,0-litre - 160 bhp (for the F4 U.S. Championship)

SECURITY

FIA specification 6-point harness
On-board fire suppression system
Hand compatible headrest
Nose box crash structure
Rear attenuator
Wheel tethers

ELECTRONICS

GEMS Performance Electronics
LDS3R display
PM3 electrical system
FIA-specific data acquisition system

BRAKES

2-piston Brembo calipers
Tilton adjustable pedal box for position
Cockpit adjustable Brake

Ligier JS F4 Brochure

Ligier JS F4 Brochure

F4 U.S. Championship