Engine Developments is pleased to offer the Judd DB 3.4 and 4.0L V8 engines for installation in hillclimb or single seater racing cars.

DB 4.4 L LMP1 V8

Engine details (4.0L V8)

The baby brother of the V10, this clean sheet design was introduced for the 2008 season and immediately proved itself as the best LeMans privateer engine, finishing 3rd at the LeMans 24 hours on its debut. The dominance continued in 2009 with pole position and victory at Barcelona, 2nd place at LeMans and victory at Silverstone. The Speedy-Sebah team dominated the Michelin Green X challenge, winning by a huge margin.

In 2010 the Oak Racing team also finished 2nd at LeMans and won the Michelin Green X challenge.

The engine is no longer eligible for racing at Le Mans but can be used to power hillclimb or single seater chassis.

Reto Meisel – Swiss hillclimb champion

Dallara GP2 – Boss GP

Engine Information

Engine: Judd DB 3.4 litre & 4.0 litre
Weight: 118 kg
Length: 516 mm
Width: 633 mm
Height: 397 mm to top of cam covers, 533 mm to top of airbox tray

Maximum Power:
3.4 litre – 610 bhp @ 10,250rpm
4.0 litre – 660 bhp @ 10,000 rpm
Cooling System: Twin water pumps.
Oil System: Pressure pump mounted on LHS, Scavenge pump mounted on RHS of engine

Clutch: 5” AP or Sachs, 3 plate carbon

Engine Mounts: Front Upper – 2 stud fixing
Front Lower – 2 stud fixing
Rear – 4 stud fixing, 2 lower 2 upper

Electronics: EFI EURO 12, or EFI Euro 8, both are single units, compatible with Megaline and Shiftec gearshift systems.
2 crank sensors, driver switchable with engine running.
4 independent engine maps, driver switchable.
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

Alternative ECU: Motec M880

Engine Design

Engine Assembly


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