[Modification Actual Combat]Pursuing Smoother Strength (Part 1)Previa 2.4L External Turbo Modification

Vehicles / Longfeng Horsepower Research Institute

For a good father with a large family, the seven-seater MPV is definitely a good helper for traveling, but when it is fully loaded with passengers and luggage, the power output is slightly insufficient, which is a common problem with many Japanese MPVs. I want to completely solve this problem. The way, the fastest and most complete way, is to add a turbo kit, just like this Previa 2.4L.

Japanese standard MPV overlord

Discontinued for many years and still popular

Speaking of the Toyota Previa, I believe that many good fathers who want to find a standard 7-seater MPV have an impression of this car. This is the third-generation Previa in Japan. It has been sold in China since 2006. It was sold until 2019. It has been on sale for 14 years, and has gone through many small changes, such as changing the front of the car in February 2009, and changing from the traditional four-speed to a CVT seven-speed gearbox + black interior in June 2012. In January 2015, 7 airbags + ESP + full car front tinted glass were added. In January 2017, "LX MODE" appearance kit + surround view system was added. There are obvious changes in the shape of the front panel parts, but this car is still loved by many car owners before the suspension of production due to the spacious cabin space created by the nearly 3-meter long wheelbase and the three rows of independent seats in the front, middle and rear , the sales volume has been in the best-selling list.

The Previa 2.4L interviewed this time is a 2016 model, so you can see the black interior. The power part is equipped with an inline four-cylinder 2.4-liter naturally aspirated engine code-named 2AZ-FE. , equipped with VVT-i continuously variable valve timing control system technology, with a maximum horsepower of 170hp/6000rpm and a peak torque performance of 22.8kgm/4000rpm, with a vehicle weight of 1830kg, the engine output performance can only be regarded as just enough, if If the car is full of passengers, the start is still brisk, but it seems a bit powerless to speed up and overtake on the expressway, so the owner plans to carry out power improvement projects.

The most effective and comprehensive power improvement method is turbo modification. Fortunately, the engine technology of this 2AZ-FE is not advanced, unlike many direct injection engines today, so I want to install a turbo system. To increase the power, there are not many items that need to be moved, especially the ECU program adjustment part, which can be processed through an external computer. The difficulty of this part alone varies greatly. For the hardware part, Tuner first installs a Mitsubishi TD-04 turbo. The standard displacement of this turbo is about 2.0L. It can also be used on the 2.4L Previa, which can get a lighter turbo hysteresis effect. Anyway, the fineness of this engine's high-speed operation is not very good, and the low-speed torque is abundant and the response is better.