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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 S1 RB26DETT Engine |
| Engine | Photos | Links Fitted to: S-Tune, Customer Cars |
Engine
| S1 parts conversion that enhances the potential of the engine by replacing the camshaft and turbo. As a tuned engine, we aim at improving the torque and output of the whole engine, making it possible to run without stress even in the city. The S1 is a menu that aims to further increase the potential by introducing parts such as the N1 specification, while checking parts and managing clearance by reaching down to the lower part of the engine. By fully disassembling the engine, checking and cleaning each part, correcting the step, adjusting the weight, and balancing, etc., the S1 tuning will be fully utilized. It is also suitable for performing S1 tuning on vehicles that travel a long distance. |
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| Engine Model | RB26DETT "S1 (S-tune concept ENGINE Spec 1)" Specification |
| Total Displacement | 2,568 cc |
| Maximum Output | 400 ps / 6,800 rpm |
| Maximum Torque | 45 kg · m / 5, 600 rpm |
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S1 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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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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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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S1 dedicated ECM |
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Metal head gasket |
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Racing plug |
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Sports air filter |
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Designated oil COMPETITION OIL type 2212E (15W50) is the designated oil. |
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Engine Cover S1 exclusive |
| Other parts changed: | 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: | 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 | |
| Warranty period: The engine and peripheral parts are guaranteed for one year or 20,000 km after S1. | |
| Price (BNR34): | 1,417,500 yen (2011). |
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Photos
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Links
| Nismo S1 |
| Zele International (Car's Factory) |
| S1 PDF |