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| 1990 Nissan R32 GTR Group E Falken Bathurst 12 Hour. including the actual car tested and winner of Wheels Car of the Year magazine |
Nismo S2 RB26DETT Engine |
| Engine | Engine Overhaul | Photos | Links Fitted to: Fitted to: Clubman Race Spec (CRS), Customer Cars |
Engine
| The S1 pursued ease of handling and speed on the street by combining the disassembly of the engine by a skilled mechanic, inspection of each part, overhaul, correction of stepping, weight adjustment, balance adjustment, and special parts. The S2 was developed as a normal evolution model of the S1 with the aim of increasing the torque over the entire range from low speed to high speed. Flat torque characteristics improve handling on the street. In addition, pickup and acceleration has been improved so that the driver can enjoy driving on the circuit. S2 is an engine for occasional circuit driving while emphasizing the ease of handling on the street. Introduced approx. 2012 | |
 (S1 parts) |
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| Engine Model | RB26DETT "S2 (S-tune concept ENGINE Spec 2)" Specification |
| Total Displacement | 2,568 cc |
| Maximum Output | 400 ps / 6,800 rpm |
| Maximum Torque | 45 kg · m / 5, 600 rpm |
| S2 New Parts: | |
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S2 dedicated camshaft By optimizing the cam profile, it eliminates the dullness in the low rotation range peculiar to turbocharged vehicles, and realizes a characteristic that can comfortably increase to the high rotation range. |
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Fuel injector 570cc (NISSAN GT-R (R35) genuine) Fuel delivery pipe For R35 injector conversion (NISMO) |
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Metal head gasket |
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S2 dedicated ECM |
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S2 ornament |
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Designated oil COMPETITION OIL type 2193E (5W40) is the designated oil. |
| Existing Parts from S1 Engine: | |
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BNR34 Genuine turbocharger BNR32 and BCNR33 are changed to BNR34 genuine ball bearing type turbo. The adoption of a ceramic turbine wheel improves the rise of the boost pressure from the low rotation speed range, and improves the torque and response from the low and middle speed ranges. |
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Large diameter turbo outlet Larger inner diameter and less change in cross-sectional area, and at the same time, the provision of a bulkhead reduces exhaust pressure and improves turbine efficiency. The exhaust pressure from the turbo and the exhaust from the swing valve merge smoothly, reducing mutual interference of exhaust and improving boost controllability. |
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Racing plug #7 |
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Sports air filter |
| Piston & ring (N1 specification) | |
| Main bearing (genuine product) | |
| Connecting rod bearing (N1 specification) | |
| Oil pump (N1 specification) | |
| Water pump (genuine product) | |
| Crank pulley & bolt (genuine product) | |
| Reinforced timing belt (Material reinforced product NISMO) | |
| Oil pan baffle plate | |
| Heat shield tape (50mm NISMO) | |
| Engine gasket kit (complete set overhaul genuine product) | |
| Turbo inlet water hose, rubber plug, head cover washer (genuine product) | |
| Port Alignment & Manifold Stepped Correction Processing (IN & EXH;) | |
| Piston & connecting rod weight adjustment, crank & pulley integrated balance | |
| Engine bench check | |
| O2 sensor (BNR32 only) | |
| Other parts check: (2012-2016) | Lubrication / cooling system - COMPETITION OIL type 2193E (5W40) (for one vehicle), radiator cap, reservoir tank, etc. |
| Intake system / idle system - AAC valve, air regulator, etc. | |
| Fuel system - Fuel pressure regulator, fuel strainer, etc. | |
| Ignition system and electrical system - EGI sub-harness, coil sub-harness, oil pressure sensor, etc. | |
| Hose - Heater return pipe, water hose (one set), air hose (one set), oil return hose (one set), heater hose (one set), boost hose (one set), fuel hose (one set), radiator hose (one set), etc. | |
| Belts - Belt tensioner, idler pulley, reinforced timing belt, compressor belt, power steering belt, fan & alternator belt, etc. | |
| Mount related parts, etc. - Engine mount, mission mount, T / M member bush, oil seal, other short parts | |
| Optional parts | GT500 RRR engine block |
| In May 2016 the pricing was significantly increased and the engine overhaul was much more detailed, see below. | |
| Warranty period: The engine and peripheral parts are guaranteed for one year or 10,000 km after S1. | |
| Price (BNR34): | 1,680,000 yen (2012). |
| 4,000,000* yen (May 2016). | |
| * Up to 5,000,000 yen depending on vehicle condition. | |
| S1 to S2 Upgrade Price | 580,000 yen (2012). |
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Engine Overhaul
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| - Engine removal / installation |
| - Engine assembly, inspection |
| - Bench & chassis die |
| - Parts fee |
| - Chemicals |
| Work Contents: | ||
| 1. In-Vehicle Inspection | Basic Menu | Additional Menu |
| Engine Room | Compression measurement, consult, abnormal noise, idling etc. | - |
| 2. Engine Down | Basic Menu | Additional Menu |
| Body | Engine lowering work, inspection of each part of the vehicle body joint | - |
| Engine Connection | Clutch disc inspection, clutch cover inspection, release bearing replacement, flywheel inspection | |
| 3. Cylinder Head | Basic Menu | Additional Menu |
| Body | Cleaning, carbon removal, distortion inspection | Port step correction processing (INT & EXH), port casting surface polishing & correction in port, manifold casting surface polishing (INT), surface polishing, combustion chamber volume adjustment (6 cylinders) |
| 4. Valve System | Basic Menu | Additional Menu |
| Valve | Cleaning, carbon removal, stem diameter measurement, bend inspection, airtight measurement, sliding | Seat cut, seat exchange (24 locations) + seat cut Valve guide exchange (EXH: 12) + centering + seat cut Camshaft bend correction (INT & EXH) |
| Valve Guide | Gap measurement with valve stem | |
| Valve Spring | Cleaning, set load measurement | |
| Retainer, Sheet, Cotter | Cleaning and visual inspection | |
| Lifter | Cleaning, diameter measurement, contact surface visual inspection | |
| Camshaft | Cleaning, diameter measurement, bending measurement | |
| Pulley (Cam & Timing) | Cleaning and visual inspection | |
| Sim | Clearance measurement and adjustment | |
| 5. Cylinder Block | Basic Menu | Additional Menu |
| Block Body | Cleaning, carbon removal, distortion adjustment, bore measurement | Bore & clearance adjustment (Pawning, Honing) |
| Oil Jet | Cleaning and visual inspection | |
| 6. Motor System | Basic Menu | Additional Menu |
| Piston & Pin | Carbon drop, diameter measurement, cleaning | Piston and connecting rod weight adjustment (6 cylinders) Crank bending correction High precision balance adjustment (pulley + crank) Main bearing adjustment (7 places), Connecting rod bearing adjustment (6 places) |
| Piston Ring | Standard replacement designated parts | |
| Connecting Rod | Cleaning, bending, twist inspection, thrust gap measurement | |
| Connecting Rod Bearing | Washing, visual inspection, replacement | |
| Crankshaft | Cleaning, bending, thrust measurement, crankpin & journal polishing lapping | |
| Main Bearing | Cleaning, visual inspection, replacement | |
| Crank Pulley | Standard replacement designated parts | |
| 7. Lubrication System | Basic Menu | Additional Menu |
| Oil Pump | Cleaning check | - |
| Strainer | Cleaning and visual inspection | |
| Guide, Oil Level Gauge | Standard replacement designated parts | |
| Oil Filter Bracket | Cleaning and visual inspection | |
| Oil Pressure Switch | Standard replacement designated parts | |
| Oil Van & Baffle | Cleaning and visual inspection | |
| 8. Cooling System | Basic Menu | Additional Menu |
| Water Pump | Standard replacement designated parts | - |
| Thermostat | Standard replacement designated parts | |
| Tank, Reservoir | Standard replacement designated parts | |
| Cap, Reservoir Tank | Standard replacement designated parts | |
| Radiator Cap | Standard replacement designated parts | |
| Cooling Fan | Standard replacement designated parts | |
| 9. Intake System | Basic Menu | Additional Menu |
| Air Filter | Standard replacement designated parts | - |
| Air Flow Meter | Standard replacement designated parts | |
| Surge Tank | Cleaning and visual inspection | |
| Throttle Chamber | Cleaning and visual inspection | |
| Intake Manifold | Cleaning and distortion inspection | |
| Balance Tube | Cleaning, visual inspection, O-ring replacement | |
| Boost Hose | Exchange | |
| 10. Exhaust System | Basic Menu | Additional Menu |
| Exhaust Manifold | Carbon removal, distortion check, cleaning | - |
| Exhaust Outlet | Carbon removal, distortion check, cleaning | |
| Turbocharger | Standard replacement designated parts | |
| 11. Idle System | Additional Menu | |
| AAC Valve | Standard replacement designated parts | - |
| Air Regulator | Standard replacement designated parts | |
| 12. Fuel System | Basic Menu | Additional Menu |
| Injector | Fuel pressure check (bench), O-ring replacement | - |
| Pressure Regulation Letter | Cleaning and visual inspection | |
| Fuel Strainer | Standard replacement designated parts | |
| Fuel Hose | Standard replacement designated parts | |
| Fuel Chamber | Cleaning and visual inspection | |
| 13. Ignition System | Basic Menu | Additional Menu |
| Plug | Standard replacement designated parts | - |
| Ignition Coil | Standard replacement designated parts | |
| Power Transistor | Standard replacement designated parts | |
| EGI sub harness | Standard replacement designated parts | |
| Coil Sub Harness | Standard replacement designated parts | |
| Crank angle sensor | Standard replacement designated parts | |
| 14. Bench Operation | Basic Menu | Additional Menu |
| Completion Inspection | Wrapping, confirmation of normal operation, compression measurement, endoscope inspection, operation confirmation of each sensor | - |
| Performance Test | Fully open performance (only for new turbo) | |
| 15. Vehicle Mounting | Basic Menu | Additional Menu |
| Engine Room Etc | Inspection of various parts of vehicle body connection, inspection of cooling water bleeding (LLC), replacement of engine mount (FR), replacement of engine mount (RR), replacement of T / M member push, cleaning of engine room | - |
| Plate | Engine plate with serial number | |
| 16. Road Test | Basic Menu | Additional Menu |
| Completion Inspection | Various meter checks (oil temperature, oil pressure, water temperature, boost), engine noise, vibration check, warning light check, clock time adjustment etc. | - |
| Note: This is a direct Google translation. | ||
Photos
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Links
| Nismo S2 |
| Nismo S2 (2012) |
| BNR34GT-R - Nismo Works Special - S2 & R2 Engines Explained |