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       Nissan 3.0 lt V6 and 3.4 lt V6
V.6 engine
  We have designed and developed the 3.0lt. Nissan V6, used in the  Maxima saloon, specifically for the SR 2 class in the SportsRacing World  Cup and Grand-Am series.
In its production form, the engine has a particularly good basic design, the  block and the heads are ideally suited for modification to a competition  engine.
Our design incorporates :-
  •  A new dry sump incorporating the lower main bearings, stiffening the block. This allows the engine to be used as a stressed member.
  •  A new inlet manifold with roller throttles that acts as the base for the air box.
  •  A scavenge pump system mounted directly on the sump.
It is intended by the organising body of the series that the 38mm restrictor limits the engine power to 350/360hp. We find that we do not have any trouble in reaching these figures.

The engine has been designed to be capable of completing a 24 hr. race; with that in mind, the rebuild life can be safely extended to 4000km. But to keep the engine at its optimum, it is probably necessary to rebuild it at shorter intervals, ideally every 4/5 races. If you ignore 24hr races, this means one rebuild per season.

During the 99 season, the development engine completed 4500km of racing and testing, without a rebuild. The engine was put back on the test bed at 3500km and the power was found to be the same or better than when new.

Results during the 1999 season, were excellent. Two 1st, a 2nd and a 3rd places, giving us second position in the drivers championship. In the 2001 season results were, Three 1st, three 2nd and a two 3rd places. The Redman Bright car winning the world championship.

IES can provide engineering support during the season and will carry spare engines to the races. If required, this engine can be leased on a per km basis.
Nissan 3.0 lt V6
 
Bore 93mm  
Stroke 73mm  
Length 505mm  
Width(across heads) 580mm  
Height (underside of sump-top of trumpets) 588 mm  
C/I crank shaft - underside of sump 102mm  
Dry sump 5 stage pump - pressure + 4 scavenge  
Clutch 5 ½ sintered  
 
FIA - SR 2 class - 38 mm restrictor  
Power

375max @ 8000 rpm
350 HP from 7000 to 8500 rpm

 
Torque 262 lbs ft @ 6750 rpm  
Weight 130 Kg. (dry, ex clutch and exhaust)  
 
Without restrictor 420 - 450hp depending on cams  
 
Included  
Engine control Pectel T6 ECU. Controlling, Ignition and Sequential Injection, with compensation for barometric pressure / air box pressure, air and water temperature. Closed loop control of air / fuel ratio, on each bank.
Data logging of all engine parameters within the ECU.
Data stream to Pi, Stack or Motec dashboards.
 		 
Air box base Integral with Inlet manifold.  
Wiring harness Fully sheathed - Military spec. (DR25 construction, Raychem wire)  
Price P.O.A. - (50% deposit with order, balance on collection)  
Lease Deposit required then usage quoted at per km - returned to us at 4,000km for rebuild (mileage is logged in ECU). Re builds during the season covered by IES. End of season rebuild paid for from deposit, balance returned. Engine damage caused by driver error, data taken from ECU, paid for by team.
  
Track support Quoted per meeting (One engineer between 2 cars)
Testing - Quoted per day.
  
Spare engine service A spare engine will be carried to each series, available on a first come basis, quoted per Km.  
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Nissan 3.4 lt V6
  
     
Bore 96.5mm  
Stroke 77.4mm  
Length 505mm  
Width(across heads) 580mm  
Height (underside of sump-top of trumpets) 588mm  
C/I crank shaft - underside of sump 102mm  
Dry sump 5 stage pump - pressure + 4 scavenge  
Clutch 5 ½ sintered  
     
LMP 675 class - 44 mm restrictor    
Power 480 / 500 HP @ 9500 rpm  
Torque 310 lbs ft @ 7500 rpm  
Weight 125 Kg. (dry, ex clutch and exhaust)  
The installation is identical to the 3.0lt SR2 engine, enabling the car to be used in both the Grand-Am and ALMS championships.
The base engine spec. has been changed to allow the use of higher RPM with the addition of Titanium valves with increased diameters and a fully machined billet crankshaft. 		 
     
Included  
Engine control As the 3.0 lt engine, can be reprogrammed depending on the engine.  
Air box base Integral with Inlet manifold.  
Wiring harness Fully sheathed - Military spec.  
Price Price will be quoted depending if new ECU and loom purchased or if using existing 3.0 lt ECU & loom