The Mitsubishi 6A13TT engine is a 2.5-liter twin-turbocharged V6 produced in Japan from 1996 to 2003. This engine was installed on sport models Mitsubishi Galant VR-4 and Legnum, oriented on the Japanese market and characterized by increased dynamic characteristics. Due to its technical data, 6A13TT became popular for budget swaps among car enthusiasts, especially those who are looking for a balance between power and cost.
Mitsubishi 6A13TT main features
| Parameter | Value |
|---|---|
| Exact volume | 2498 cm³ |
| Power system | Injector |
| Power | 260 – 280 hp |
| Torque | 343 – 363 Nm |
| Cylinder block | Cast-iron, V6 |
| Cylinder head | Aluminum, 24 valves |
| Cylinder diameter | 81 mm |
| Piston stroke | 80.8 mm |
| Compression ratio | 8.5 |
| Transmission timing | Belt |
| Turbocharger | Twin-Turbo |
| Hydrocompensators | Yes |
| Oil volume | 4.3 liters (5W-40) |
| Fuel type | AI-95 |
| Ecological class | Euro 3 |
| Example service life | 230,000 km |
| Engine weight | 205 kg |
Application
The 6A13TT engine was installed only in the sporty Galant VR-4 and Legnum EA models produced from 1996 to 2003. These models were characterized by advanced all-wheel drive system and suspension, which made them competitive in the segment of sporty station wagons.
Features and construction of the 6A13TT
The 6A13TT engine combines technologies aimed at providing high performance in a compact size:
- Twin-Turbo System: Two turbochargers running in parallel improve throttle response and dynamic performance at all rpm.
- DOHC with intercooler: Dual overhead camshaft system and intercooler air cooling contribute to increased power.
- Hydrocompensators: Provides automatic adjustment of valve clearances, which reduces noise and extends engine life.
- Cast iron block and aluminum cylinder head: The cast iron cylinder block provides strength and durability, while the lightweight aluminum head reduces overall engine weight.
Disadvantages and common problems of Mitsubishi 6A13TT
- Difficulty in maintenance: The compact location of components under the hood makes access to the main engine components much more difficult.
- Wear of hydrocompensators: One of the frequent problems is the failure of hydrocompensators. This manifests itself in the characteristic “knocking” of the engine, especially at high mileage.
- Timing belt: Despite the recommended timing belt replacement interval of every 90,000 km, there are occasional cases of premature belt wear. This is due to the high load on the engine during sporty operation.
- Turbines: The 6A13TT turbines are long-lasting, but to prolong their life it is important to check the oil level regularly and ensure that the pressure relief valve stem is lubricated.
- Oil level drop: A drop in oil level can cause accelerated wear of the liners, requiring major engine overhaul.
Operation and maintenance tips
- Oil Level Check: It is important to check the oil level regularly and keep it within the normal range.
- Oil Change: It is recommended to use 5W-40 oil and change it every 5,000 to 7,000 km to extend engine life.
- Turbo maintenance: To extend the life of turbochargers, it is recommended not only to use quality oil, but also to allow the engine to “cool down” after high loads.
- Replacing the timing belt: Regular maintenance includes replacing the timing belt every 90,000 km, but this interval can be shortened if you drive aggressively.
Mitsubishi 6A13TT engine for swap
6A13TT is popular among enthusiasts for installation on various car models. The cast iron block provides high durability, which allows it to be used with a turbocharger to achieve significant horsepower. However, be aware that installing a 6A13TT may require additional modifications to ensure compatibility with the vehicle’s electronics and mounts.