The Nissan Skyline GT-R (R32, BNR32) is rated 276 hp (Japanese catalog figure 206 kW / 280 PS (the industry-agreed cap; basis not labelled on the Nissan page) · JP market) at 6,800 rpm and weighs 3,153 lb (Nissan curb weight, Japanese catalog), or 11.4 lb/hp. On enthusiast estimates its stock internals are taken to about ~700 hp, the fuel system to around ~400 hp, and the stock turbo(s) are taken to about ~440 hp. Below: the sourced spec sheet, the limit sheet carbuildcheck analyzes against, and the platform's community-documented weak points.
Units
01 Spec sheet sourced
EngineRB26DETT · 2,568 cc · I6
Engine codeRB26DETT
Bore × strokenot sourced in this audit
Compressionnot sourced in this audit
Inductiontwin turbo (ceramic turbine wheels)
Fuel systemport
Rated power276 hp · Japanese catalog figure 206 kW / 280 PS (the industry-agreed cap; basis not labelled on the Nissan page) · JP market @ 6,800 rpm
GenerationBNR32 (1989–1994); the R33 (1995–1998, 1,540 kg V-spec, 368 N·m) and R34 (1999–2002, 1,560 kg V-spec II, 392 N·m) carry the same 280 PS rating · 1989–1994
rotating assembly ceiling · fails first: oiling at high rpm (crank collar, pump) before the rotating assembly · 98 RON · no named source: site planning estimate · site planning figure; ~700 hp assumes the oiling work (collar, pump, baffled pan) that is not a selectable mod, and no fetched source states a stock-oiling power figure; Drifted (t1) supports only the rpm limit
Induction ceiling~440 hp
stock turbo / supercharger ceiling · fails first: ceramic exhaust wheels on the stock twins shatter when pushed · 98 RON · no named source: site planning estimate · site planning figure ~440 hp; no named source states a stock-twin ceiling
Fuel system~400 hp
stock fuel-system ceiling · fails first: 444 cc injectors and the stock pump · 98 RON · no named source: site planning estimate · site planning figure; no named source in this audit
Clutch (manual)~350 hp
stock clutch torque capacity · fails first: stock clutch slip · no named source: site planning estimate · site planning figure; no named source in this audit
Cooling (sustained)~420 hp
thermal ceiling for sustained load · fails first: oil temperature and starvation on track · no named source: site planning estimate · site planning figure; no named source in this audit
Tuning limitsenthusiast estimates, crank hp on the stated fuel; sources: Drifted, RB26DETT engine guide; method: the analyzer plans on the lower bound of each range
⚑Ceramic exhaust wheels on stock turbos shatter when pushed (community consensus); swap to steel-wheel units before raising boost hard.
⚑High-rpm oiling is the RB's weak spot (Drifted: crank movement above 7,200 rpm): crank collar, upgraded pump and a baffled pan for sustained big power.
04 The typical path
Boost controller or a standalone ECU first (there is no flash stage 1 on a 1989 car); steel-wheel turbos before boost; injectors and pump with them; front pipe, then the oil-system work before big numbers.
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