Mitsubishi 4G63T 2.0T Engine Specs, Problems, Reliability. The Mitsubishi 4G63T is the legendary 2.0-liter turbocharged engine produced from 1987 to 2007 and based upon the naturally aspirated variation – 4G63 non-turbo. The 4G63 turbo engine is popular for being used in the Mitsubishi Lancer Advancement series of cars up till 2006 when it was changed by the new 4B11T turbo engine.
The engine has a cast iron cylinder block with the height of 229 mm, resilient and strong crankshaft, and light 150 mm long forged connecting rods. The engine block was geared up with oil jets for cooling pistons. The compression provision also was reduced. On top of the block, there is a 16-valve aluminum cylinder head with belt driven double overhead camshafts (DOHC head). The intake and exhaust systems were significantly redeveloped. The cylinder head has reworked exhaust and consumption ports.
The engine received the new consumption manifold and throttle body with 60 mm throttle valve. The cast iron exhaust manifold was adjusted for turbocharger setup. After turbocharger, the compressed consumption air is cooled by the large intercooler. The more air requires more fuel; in this case, there are high-productive fuel injectors 450/390 cc (non-turbo variations had 240/210 cc injectors).
Mitsubishi 4G63T 2.0T Engine Specs, Problems, Reliability
These basic changes were made in the very first years of production for the Mitsubishi Galant VR-4 and Lancer Evolution I applications. The Mitsubishi produced 3 generations of the 4G63T, each time making some modifications to increase power and performance. Let’s take a closer look at them.
The 4G63T 1G is the very first generation engines in the Development I, Evolution II and Advancement III from 1987 to 1996. The very first 4G63 turbo engine was installed in the Mitsubishi Galant VR-4. It has a 7.8:1 compression ratio and was equipped with the TD05H 14B turbocharger for a manual transmission and TD05H 13G turbocharger for the automatic transmission. Limit boost was 0.6 bar (8.7 psi). This version produced 195 hp at 6,000 rpm and 217 lb-ft (294 Nm) at 3,000 rpm however in 1989 by basic ECU updating the max power was raised approximately 220 hp. The serious changes were released in 1990 for the Evolution application.
The 4G63T got the new injectors, bigger intercooler, new light linking rods and another turbocharger came with manual transmissions – the TD05 16G (60 mm compressor wheel). The compression was increased to 8.5:1 for Advancement I and II. The power output was raised to 240 hp for Advancement I and 260hp for Evolution II. The max torque is 228 lb-ft (309 Nm) at 3,000 rpm. The Evolution III had actually raised the compression ratio to 9.0:1 and utilized an even bigger turbocharger than previous designs called as Large TD05 16G6 (it has 68 mm compressor wheel). That permitted to increased power to 270 hp at 6,250 rpm (limit torque is the same).
The second generation 4G63T G2 engine was installed in the Evolution IV, Development V, and Evolution VI. Now the engine was transferred on the right side in the engine bay. Positions of the flywheel and cam drive of the engine have actually changed compared to previous G1 variations. The G2 engine had a brand-new cylinder head with reshaped exhaust and consumption ports, 450?? fuel injectors, light-weight pistons, and 8.8:1 compression ratio. The intake system likewise was revised. There are a new consumption manifold and throttle body with 52 mm valve. There is a laminated steel gasket between the engine block and cylinder head now.
The brand-new TD05HR-16G6-9T turbocharger produces limit increase pressure of 0.9 bar (13 psi). Here are engine specifications for Lancer Evo IV – 280 hp at 6,500 rpm and 260 lb-ft (353 Nm) at 3,000 rpm. The engine for the Evo V was tuned up a little bit: new webcams, 560cc injectors, ECU remap and etc. The turbocharger was changed by the twin scroll TD05HR-16G6-10.5 T turbocharger. For Development VI, the engineers enhanced engine cooling. The engine specs for Evo V and VI are identical – 280 hp at 6,500 rpm and 275 lb-ft (373 Nm) at 2,750 rpm.
The last 3rd generation was presented for the Lancer Advancement VII in 2001. It produced 272 hp at 6,500 rpm and 253 lb-ft (343 Nm) at 2,750 rpm. This version had new camshafts, a new consumption manifold with better airflow, the TD05HR-16G6-9.8 T turbocharger. The engine also was geared up with big air-to-air intercooler with water spray nozzles in front of it, and the oil cooler. The 4G63T G3 for the Evo VIII was upgraded once again. This engine had a light-weight crankshaft (13.38 kg), brand-new forged steel connecting rods, new exhaust manifold, heavy-duty aluminum pistons (476 g) and revised valvetrain.
The power output was enhanced – 265 hp at 6,500 rpm and 262 lb-ft (355 Nm) at 3,500 rpm. The last design which utilized the 4G63T engine was the Evolution IX. The 4G63T for Evo IX is the most contemporary and innovative engine of all 4G63 2.0 l turbo engines. The engine was equipped with Mitsubishi’s variable valve timing MIVEC for the intake, two-piece rings, extended reach spark plugs and the TD05HRA-16G6C-10.5 T turbocharger. The last version produced 280 hp at 6,500 rpm and 295 lb-ft (400 Nm) at 3,000 rpm.
4G63T Engine Problems and Reliability
The common problems are the same as the non-turbo engine has. The engine needs extra attention to the oil system. Usage just high-quality engine oil and change it regularly. The overrun oil can plug oil channels to the bearings of the balance shafts. The jammed shafts due to damaged bearings will break the timing belt which caused a big mess of pistons and valves inside combustion chambers. To avoid this, it is much better to replace the balance shafts with aftermarket balance shaft eliminator package.
Unclean oil is also bad for hydraulic valve lifters – the weak point of the engine. They generally live about 35,000-40,000 miles.
The 4G63T engine had a fantastic reliability for that kind of performance. The engine life of a stock 2.0-liter turbo engine is about 200,000-250,000 miles (300,000-400,000 km). As you can envision, it was fantastic for tuning and racing due to its capacity, so unusual engines remained untouched until this line.
Mitsubishi 4G63T 2.0T Engine Specs
|Manufacturer||Mitsubishi Motors Engine Manufacturing Co Ltd, Kyoto engine plant
Diamond-Star Motors, Normal, Illinois
|Cylinder block material||Cast Iron|
|Cylinder head material||Aluminum|
|Fuel system||Fuel injection|
|Number of cylinders||4|
|Valves per cylinder||4|
|Bore, mm||85.0 mm (3.35 in)|
|Stroke, mm||88.0 mm (3.46 in)|
|Displacement, cc||1,997 cc (121.9 cu in)|
|Type of internal combustion engine||Four-stroke, turbocharged|
|Compression Ratio||7.8/8.5/9.5:1 – 1G;
8.8:1 – 2/3G
|Power, hp||200-270 hp (149-201 kW)/6,000-6,250 – 1G;
280 hp (209 kW)//6,500 – 2G;
265-280 hp (198-209 kW)//6,500 – 3G
|Torque, lb ft||203-228 lb-ft (275-309 Nm)/3,000 – 1G;
360-375 lb-ft (353-373 Nm)/2,750-3,000 – 2G;
253-300 lb-ft (343-407 Nm)/2,750-3,000 – 3G
|Engine weight||350 lbs (160 kg)|
|Engine oil weight||5W-40,10W-40 or 10W-50|
|Engine oil capacity, liter||5.1 (5.3 qt)|
|Oil change interval, mile||9,000 (15,000 km) or 12 month|
|Applications||Mitsubishi Galant VR-4, Mitsubishi Eclipse I-II, Mitsubishi Lancer Evolution I-IX, Mitsubishi Outlander, Mitsubishi Space Runner/RVR, Eagle Talon/Plymouth Laser|