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AMERICAN LE MANS SERIES |
25/09/2001 |
Judd |
GV5 |
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Engine Developments' description of their new five litre GV5 for 2002 reads as follows:
For the 2002 season, Engine Developments is introducing a new variant of its highly successful 4 litre Sports Racing engine, the GV4. The new engine will have an increased capacity of 5 litres, and will be known as GV5.
The introduction of the new engine has been brought about by an examination of the various markets and series in which the 4 litre engine is currently used. Having studied these, we believe that a lower revving, higher torque engine may be better suited to some customers, and have opted for an increase to 5 litres to provide these characteristics.
Being a development of the GV4, the GV5 will share the same basic design as the 4 litre engine, but will have an increased stroke to achieve the higher capacity. This will result in a taller engine with slightly different installation requirements for gearbox mounting, airbox and exhaust systems. Otherwise the engine will remain largely similar to the existing 4 litre.
The maximum power of the GV5 will be similar to the 4 litre, but we expect maximum torque to be increased by 25 – 30% though this will be achieved at lower rpm than on the GV4. With maximum revs reduced from 11000 to 9000rpm, the potential long term reliability of the engine may be improved over the 4 litre variant, though the excellent reliability record of the 4 litre will be difficult to surpass.
Rebuild intervals for GV5 will initially be the same as GV4 (3000km), but it is hoped in the long term that these will be increased.
The first orders for the GV5 have already been accepted, with deliveries to customers expected to commence in January 2002. Engines will only be available on a 2 year lease contract, details of which are available from the company.
Any enquiries about the engine can be made through the EDL website, at this link.
SPECIFICATION – GV5
CAPACITY 4997 CC
CONFIGURATION 72 DEGREE V10
WEIGHT 140 KG / 308 LBS (DRY WEIGHT, INCLUDES FLYWHEEL AND WIRING HARNESS BUT EXCLUDES CLUTCH & EXHAUSTS)
DIMENSIONS
LENGTH 622,5MM / 24.5 INS.
HEIGHT 436MM / 17.1 INS. (EXCL.TRUMPETS)
WIDTH 569MM / 22.4 INS.
MAXIMUM POWER
OVER 600 BHP @ 7800 RPM (2 X 32,7MM RESTR.)
OVER 800 BHP @ 10000 RPM (NO RESTR.)
MAXIMUM TORQUE 445 LBFT @ 6500 RPM ( 2 X 32,7MM RESTR.)
465 LBFT @ 7500 RPM (NO RESTR.)
MAXIMUM RPM 9000 RPM (2 X 32,7MM RESTRICTORS)
ENGINE MANAGEMENT EFI EURO 12 SYSTEM
COOLING SYSTEM
TWIN WATER PUMPS (ONE PER BANK), WATER OUTLETS ON FRONT OF CYLINDER HEADS
OIL SYSTEM
PRESSURE PUMP AND OIL INLET ON LHS, SCAVENGE PUMP AND OIL OUTLET ON RHS
CHASSIS MOUNTING
TOP FRONT MOUNTING BY SHEAR PLATE, ALL OTHERS STUD FIXING, INCLUDING 4 REAR MOUNTING POINTS
CAN BE FULLY STRESSED
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