The Mitsubishi Lancer Evolution IX (4G63) is rated 286 hp (SAE net (286 hp, Mitsubishi press text reproduced by a secondary) · US market) at 6,500 rpm and weighs 3,285 lb (1,490 kg / 3,285 lb, trim unstated (secondary reproduction of Mitsubishi press material)), or 11.5 lb/hp. On enthusiast estimates its stock internals are taken to about ~520 hp, the fuel system to around ~380 hp, and the stock turbo(s) are taken to about ~340 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
Engine4G63 · 1,997 cc · I4
Engine code4G63
Bore × stroke85 × 88 mm
Compression8.8:1
Inductionsingle turbo (MIVEC on the IX)
Fuel systemport
Rated power286 hp · SAE net (286 hp, Mitsubishi press text reproduced by a secondary) · US market @ 6,500 rpm
Torque289 lb-ft @ 3,500 rpm
Redlinenot sourced in this audit
Stock boostnot sourced in this audit
Transmission5MT (RS, IX, SE) · 6MT (MR)
DrivetrainAWD
Curb weight3,285 lb · 1,490 kg / 3,285 lb, trim unstated (secondary reproduction of Mitsubishi press material) · 11.5 lb/hp
GenerationCT9A; the Evo VIII (2003–2005) is rated 271 hp / 273 lb-ft at 3,241 lb; Japan Evo IX 280 PS JIS · 2006 (US); revealed New York, 24 March 2005
rotating assembly ceiling · fails first: crankwalk on 7-bolt blocks; rods past ~500 hp · 93 AKI · no named source: site planning estimate · site planning figure ~520 hp; no named 4G63 tuner source was fetched in this audit
Induction ceiling~340 hp
stock turbo / supercharger ceiling · fails first: stock turbo out of efficiency · 93 AKI · no named source: site planning estimate · site planning figure ~340 hp
Fuel system~380 hp
stock fuel-system ceiling · fails first: stock injectors and pump · 93 AKI · no named source: site planning estimate · site planning figure; no named source in this audit
Clutch (manual)~320 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)~400 hp
thermal ceiling for sustained load · fails first: transfer case and diff temperature · 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: none named yet; method: the analyzer plans on the lower bound of each range
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