【Product Test】Release potential hard power MG HS 1.5T x Shadow i-Boost tuning box

Shadow is tuned for the Garrett MGTB14Z variable turbo on MG HS 1.5T

In order to compete with hybrid cars and EV cars, the pursuit of light acceleration and responsive response is already a must for downsized turbo cars.

Therefore, the torque can be delivered and output continuously is the tuning direction of our tuning box.

The owner of this MG HS 1.5T, which was entrusted by the customer to perform i-Boost tuning box tuning, said that he was not satisfied with the performance of the power after the delivery of the car, and the timing of the emergence of torque was a little later. When it is pulled high, there is plenty of acceleration power, but due to the factory warranty, the owner does not want to perform hardware modification or even rewrite the ECU, so he turned to Shadow.

After the actual road test, we also found that the problems described by the car owner will cause such a physical feeling, part of which comes from the influence of the normal driving mode preset by the original factory. The driving mode controls the throttle opening and gearbox logic. ..etc. Therefore, if the vehicle is to have sufficient acceleration, the driving mode must be set to sport or even super sport.

The other part is that the original factory will try to keep the gearbox at a high-end position for fuel economy considerations. If there is a need for overtaking, the kick-down response of the throttle deepening is not active enough.

Based on all the driving experience, under the excellent hardware, there is indeed room for improvement in the maturity of the powertrain tuning of the original factory.

We put the factory new car through multiple horsepower tests, using 98 gasoline and not smoothing the curves.

**Original: dotted line**

It can be seen from the horsepower diagram that the stock (dashed line) torque peaks before 3000rpm and begins to decay after 4200rpm; the horsepower begins to extend after reaching the first plateau at 4300rpm.

**i-Boost : solid line**

After the i-Boost plug-in computer intervened, the sweet spot of power increased by 4 kgm of torque and nearly 20 horsepower at 3,000 rpm, and continued to extend to 4,300 rpm. The torque and horsepower in the entire range were improved compared to stock.

Different from the traditional turbine engine tuning method, we tuned according to the characteristics of small-displacement engines and Garrett variable turbines, and enhanced them for the mid- to low-speed range of daily use, allowing torque and horsepower to appear earlier and overlap for a longer period of time. (red and green blocks).

After verifying the overall performance improvement at full load on the horsepower machine, we also conducted an actual road test. The log confirmed that the ignition and air-fuel ratio were within the normal range, and the engine fault light would not come on.

Judging from the turbine meter, the holding pressure of the stock is not very stable, and the torque peak appears slowly.

After i-Boost optimization, the turbine's positive pressure reaches the torque peak earlier, and the gap between instantaneous pressure and sustained pressure is also smaller. The overall acceleration experience is linear and continuous.

Now this MG HS 1.5T is different from the original state. After optimizing the boost curve, it not only has stronger momentum, but also improves the output response of the engine. I think this is the performance that this car should have.

Related Products

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  I-BOOST Tuning Box

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  How to increase the power output of a beloved car has always been a sought-after modification direction for many young car enthusiasts. Shadow has independently developed the i-Boost aftermarket ECU specifically for turbocharged cars, making power upgrades simple and safe. Compatible with numerous brands and models, it seamlessly integrates with the original ECU. With its dedicated wiring harness, installation is plug-and-play without any need for modifications or causing warning lights, ensuring no impact on the factory warranty. It's a smart choice for confidently boosting power without any worries.

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i-Boost Tuning Box in MG HS 1.5T