The Mitsubishi 3B20T 0.7-liter 3-cylinder turbo engine was produced from 2006 to 2020 and was installed on such popular kei cars as the eK Custom, eK Wagon and the similar Nissan Dayz. There are two generations of this power unit: for the i model and for the eK line of kei cars.
3B2 family: 3B20, 3B20T, 3B21, 3B21T.
Specifications
| Production years | 2006-2020 |
| Displacement, cc | 659 |
| Fuel system | distributed injection |
| Power output, hp | 64 |
| Torque output, Nm | 94 – 100 |
| Cylinder block | aluminum R3 |
| Block head | aluminum 12v |
| Cylinder bore, mm | 65.4 |
| Piston stroke, mm | 65.4 |
| Compression ratio | 8.8 – 9.0 |
| Features | DOHC |
| Hydraulic lifters | no |
| Timing drive | chain |
| Phase regulator | MIVEC |
| Turbocharging | MHI TD02M2 |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 3.4 |
| Fuel type | petrol |
| Euro standards | EURO 4/5 |
| Fuel consumption, L/100 km (for Mitsubishi eK Wagon 2015) — city — highway — combined |
5.7 3.6 4.3 |
| Engine lifespan, km | ~180 000 |
| Weight, kg | 69 (without attachments) |
The engine was installed on:
- Mitsubishi i 1 (HA1) in 2006 – 2013;
- Mitsubishi eK Custom 1 (B11) in 2013 – 2019;
- Mitsubishi eK Space 1 (B11) in 2014 – 2020;
- Mitsubishi eK Wagon 1 (B11) in 2013 – 2019;
- Nissan Dayz 1 (B21) in 2013 – 2019;
- Nissan Dayz Roox 1 (B21) in 2014 – 2020.
Disadvantages of the Mitsubishi 3B20T engine
- For a tiny turbo engine, this engine is quite reliable, it has no weak points;
- It is very important to monitor the cooling system, it immediately leads the head from overheating;
- Grease often pours into candle wells due to hardened o-rings;
- After 150 thousand kilometers, oil consumption and timing chain stretch are common;
- There are no hydraulic lifters and valve clearances need to be adjusted every 100,000 km.
Frequently asked questions about the Mitsubishi 3B20T
How much power does the Mitsubishi 3B20T make?
The Mitsubishi 3B20T develops 64 hp and 94 - 100 Nm of torque.
How much oil does the Mitsubishi 3B20T take and which one?
Engine oil capacity: 3.4 liters. Recommended oil: 5W-30.
Does the Mitsubishi 3B20T have a timing belt or chain?
The Mitsubishi 3B20T uses a timing chain.
Is the Mitsubishi 3B20T turbocharged?
Yes, the Mitsubishi 3B20T is turbocharged (MHI TD02M2).
Does the Mitsubishi 3B20T need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the Mitsubishi 3B20T last?
The typical lifespan of the Mitsubishi 3B20T is ~180 000 km with proper maintenance.
What is the fuel consumption of the Mitsubishi 3B20T?
Mitsubishi eK Wagon 2015: city 5.7, highway 3.6, combined 4.3 L/100 km.
What cars was the Mitsubishi 3B20T installed on?
Mitsubishi i 1 (HA1) in 2006 - 2013; Mitsubishi eK Custom 1 (B11) in 2013 - 2019; Mitsubishi eK Space 1 (B11) in 2014 - 2020; Mitsubishi eK Wagon 1 (B11) in 2013 - 2019; Nissan Dayz 1 (B21) in 2013 - 2019; Nissan Dayz Roox 1 (B21) in 2014 - 2020.
What are the common problems of the Mitsubishi 3B20T?
For a tiny turbo engine, this engine is quite reliable, it has no weak points. It is very important to monitor the cooling system, it immediately leads the head from overheating. All known problems.
