Judd DB 3.0, 3.4 & 4.0 Litre V8
Engine details (4.0L V8)
In 2010 the Oak Racing team also finished 2nd at LeMans and won the Michelin Green X challenge.
The DB engines are currently used in hillclimb, recently powering Reto Meisel to the Swiss Hillclimb championship, and single seater applications such as the Dallara GP 2 chassis, campaigned by a Boss GP customer.
Reto Meisel – Swiss hillclimb champion
Dallara GP2 – Boss GP
Engine: Judd DB 3.0 litre, 3.4 litre & 4.0 litre
Weight: 116 kg (reduction to 110 kg is possible at additional cost)
Length: 516 mm
Width: 633 mm
Height: 397 mm to top of cam covers, 533 mm to top of airbox tray
3.0 litre – 560 bhp @ 11,000rpm (estimated)
3.4 litre – 610 bhp @ 10,250rpm
4.0 litre – 670 bhp @ 10,000 rpm
Cooling System: Twin water pumps.
Oil System: Pressure pump mounted on LHS, Scavenge pump mounted on RHS of engine
3.4 Litre: 5” AP or Sachs, 3 plate carbon
4.0 Litre: 4.5″ low inertia carbon clutch
Engine Mounts: Front Upper – 2 stud fixing
Front Lower – 2 stud fixing
Rear – 4 stud fixing, 2 lower 2 upper
Electronics: Motec M1 series ECU, which is compatible with Megaline and Shiftec gearshift systems.
2 crank sensors, driver switchable with engine running.
Driver switchable engine maps.
Closed loop fuelling, driver adjustable fuel trim.
PID Traction control, driver adjustable.
CAN communication to and from chassis systems for gearbox control, traction control, data logging.
Multi-channel engine safety software to prevent engine damage (overheating, loss of oil pressure, etc).
Compatible with Motec, Cosworth, Magneti Marelli and Bosch data acquisition and dashboard systems.
Fuel System: 5 bar pressure, one injector per cylinder
Throttle: Barrel type throttle with integral pneumatic blipper. Actuation via cable or DBW motor.
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