ADR Engineering


The ADR3 : The ADR3 is designed to accept both the Suzuki Hayabusa Motorcycle engine as well as the Honda K20 2 litre car engine mated to the Hewland FTR gearbox. This gives the driver superb opportunity to spec the car for several series around the world. The main specifications are listed below:

Engines -
Suzuki Hayabusa 1300cc, 16 Valve Head, 180 bhp std. fuel injected
Suzuki Hayabusa 1397cc, 16 Valve Head, 210 bhp std. fuel injected
Suzuki Hayabusa 1464cc, 16 valve head, 230 bhp fuel injected
Suzuki Hayabusa 1507cc, 16 valve head, 250 bhp fuel injected

Suzuki Hayabusa 1610cc, 16 valve head, 250+ bhp fuel injected Honda F20C, 2.0L, VTEC, 250+ bhp fuel injected, dry sumped

ADR 2.4L V8, 401bhp fuel injected (mated to the Hewland FTRS gearbox)

Transmission - 6 speed sequential Suzuki gearbox, mechanical reverse, hydraulic clutch, shaft drive to differential, quick-change crown wheel & pinion, std ratio 2.99, low ratio 3.5.

On automotive based cars, Hewland FTR 6 speed sequential box with interchangeable ratios, limited slip differential

Chassis - Powder coated tig welded CDS 16 & 18 gauge space frame chassis computer laser cut 6mm 2014T aluminium front & rear bulkheads.

FIA crash tested and approved.

RAC and SCCA approved safety cage with twin tube roll bar, head rest cross braces, and forward down tubes.

Floor Pan - Powder coated laser cut 18 gauge aluminium.

Suspension - Front & rear push-rod, rose jointed, double wishbone.
Single adjustable coil-over dampers with alloy body(Optional double or triple adjustable dampers)
Front and rear anti-roll bar, fully adjustable, blade type.

Body - Removable light weight GRP gel-coated body including front nose section, rear body section and engine cover, with flush mounted release clips,
customer choice of color

Fixed side pods, cockpit surround and roll bar fairing. High down-force front splitter and side skirts. Full width adjustable rear wing and alloy wing
mounting brackets.

Front headlight pods with smoked or clear Perspex covers, rear brake lights, single high intensity rain light ( for track use ).

Cockpit - Glass carbon-kevlar molded race seat with driver 6 point harness SCCA/FIA spec.
Steering wheel mounted paddle shifters(optional) and floor mounted reverse selector.
Adjustable pedal box, quick release steering wheel. Customer may chose right or left side driver's position at time of order.

Instrumentation -
Steering wheel mounted digital dash display incorporating sequential shift lights, gear display, water & oil temp, speed, rpm, data logging,
lap timer, battery voltage indicator, G sensors and Track Mapping
Ignition switch, battery isolator and engine starter button.

Wheels & Tires -
Bespoke 13 inch 3 Piece center lock wheels, powder coated cast aluminium center, polished spun aluminum inners and outers, 8.5 " wide front,
11" wide rears, fitted slicks.
15x8.5, 15x11, and 16x11 center lock wheels are optional.

Brakes -
Willwood 4 pot radial mount alloy calipers front & rear, cross-drilled 265mm diameter rotors mounted on aluminum 2014 T 6 bells.
Twin master cylinders with brake balance bar and remote adjuster. Optional 280mm vented rotors.

Dimensions -
Wheelbase - 102"
Front track 1630 mm (64")
Rear track 1655 mm (65")
Overall Length ( with wing ) 3962 mm (189")
Cockpit width 1066mm (42")
Ground clearance - Road Trim 100 mm(4") - Track Trim 40 mm (1.5")
Height over sides pods 500 mm (20")
Height Overall 1040 mm (41")

Weight -
992lbs wet