Chevrolet Captiva / Техника / Автомобили / Off-road

Това би било вярно ако става въпрос за официалните дилъри. Същите пари взимат обаче и фирмите за тунинг. А и няма как да се докаже къде е проблема когато става въпрос за гаранция. Чипа се монтира и демонтира за минути. Същото ще направи и дилъра. Едва ли ще обяснят на GM, че са правили тунинг.

За тези които се интересуват публикувам малко повече информация за един от вариантите (404 лв с доставката):

http://www.tdc-technologies.com/

The Chevrolet Captiva 2.0 110kW 150bhp 320NM with Common Rail Technology requires the PowerBox CR. We have the "standard" PowerBox CR and the digital PowerBox CRplus in stock. Both units are compatible with your vehicle.
The PowerBox CR and the digital PowerBox CRplus are so called "Plug & Drive" devices. You don't have to solder or cut wires. Both come with OEM connectors. The unit is installed directly to the common rail pressure sensor. The CR sensor is located in the high-pressure fuel line (common rail), which runs parallel to the cylinder heads. All of our products come with installation instructions (in English).

Here's the difference between the PowerBox CR and the digital PowerBox CRplus:

The PowerBox CR consists of a microprocessor and an integrated circuit that incorporates some capacitors and resistors. The analog components only control the adjustment. The microprocessor controls all data flow, so essentially we can call it a digital PowerBox. The power improvement is moderate when compared to the CRplus. The power gain is somewhat linear with acceleration and increases as speed increases gradually throughout the entire speed range. The PowerBox is adjusted by means of a built-in adjustment screw. The adjustment screw is either turned clockwise or counterclockwise to increase/decrease power. The unit's increased power and torque provides a modest increase in fuel efficiency - approximately an additional 5%. With some vehicles, the savings is even greater.

The PowerBox CRplus is fully digital and includes a signal variation switch with multiple settings, so there's never a problem finding the setting that's best for your vehicle. You can even turn the PowerBox off while it is still connected.

The CRplus has been programmed for optimal performance. Power gains vary depending on engine and ECU type. The power improvement is linear to acceleration; however, a greater boost is provided when there's an immediate demand for acceleration. This reduces the time required to pass other vehicles, and, in some cases, means less time exposure to oncoming traffic.

Despite its potential for tremendous power improvement, the CRplus has been programmed to provide better fuel efficiency. Its unique programming increases power when needed most. During acceleration, the injection time required to achieve higher speeds is substantially reduced. This minimizes fuel consumption. In fact, independent testing revealed fuel economy savings from 10% to 15% at signal variation settings between from "3" to "6."

The CRplus includes an extended wiring harness to provide greater reach for installation. Each unit comes complete with detailed illustrated instructions and is backed by our 3-year limited warranty.

The PowerBox CR/CRplus can not damage your engine or any other components in your car. This is how the PowerBox works:

The TDC PowerBox essentially reads the RPMs, acceleration signal, and pump output or rail pressure at a specific moment to determine a proportionate change in fueling that will remain within the external tolerances that have been programmed into the ECU. These are referred to as external signals. The ECU’s internal program primarily determines the amount of fueling that should be present at a specific point in time based on the external signals.

While the ECU’s internal program allows for some irregularity in the external signals (from interfaces outside of the ECU), the variance created by the PowerBox stays within allowable operating tolerances. Significant deviations in external signals produce engine error codes to warn the driver of a potential maintenance condition.

For example, if the tolerances of a particular manufacturer are set to allow a 20% variance, then an additional amount of fueling (up to that amount) can occur, although the ECU knows that the actual speed/RPMs of the vehicle demands 20% less fueling. With the diesel engine, additional fueling is possible due to the availability of excess air during combustion, so you can add more fuel and still achieve optimal combustion. The amount of over-fueling that takes place is determined by the external parameters mentioned earlier. The TDC PowerBox is programmed so that the margin of over-fueling is always proportionate to the engine load and demand for acceleration; this ensures maximum operating efficiency.

We don't recommend using the PowerBox on new vehicles with less than 3000 miles.