Turbosmart's eBoost2
Turbosmart’s eBoost2 is a fully-featured programmable electronic device. If you are a competent, technically-savvy DIY installer, we suggest you carefully read and follow the instructions included with the unit.
Simple Setup Guide
Despite being a state-of-the-art electronic device, an eBoost2 is relatively easy to set up. While we recommend you get your e-Boost2 set up by a qualified technician who will help you get the most out of the product, you can still get the basic functions working for you by following this Quick Start Guide.
1. Set the SP Value
The SP value determines the duty cycle the solenoid will operate at when the gate pressure is reached. This is a value between 0 – 99. The larger the value, the higher the duty cycle, the more air the solenoid will bleed off from the signal to the wastegate, and the more boost the turbocharger will produce.
Start the setup by increasing the SP value to 10. Bring the car onto boost and see what the maximum boost pressure is. Increase the values in increments of 10 until the boost achieved is close to the value desired. Then, increase or decrease the SP value in small increments until the desired boost level is achieved.
The SP value can also be adjusted while the car is on boost; however, the boost pressure will be displayed instead of the SP value being shown.
2. Set the Gate Pressure
The gate pressure is the pressure at which boost pressure begins to act on the wastegate.
This changes the turbocharger’s response and the rate at which the boost increases to the desired boost pressure. The gate pressure will always be lower than the desired boost pressure as the wastegate needs time to open and control exhaust gas flow.
Start by setting the gate pressure 5 PSI below the boost pressure achieved with the corresponding SP value. Bring the car onto boost and check whether there is a boost spike. If there is no boost spike and you want to increase the turbocharger’s response, you can increase the gate pressure until you get a spike, then reduce the gate pressure until the spike is gone.
Alternatively, you can lower the gate pressure to change the ramp rate of the boost. This can be used when the rise in boost is too aggressive and causes undesirable wheel spin.
3. Set the Sensetivity
The sensitivity is how sensitive the eBoost2 is to changes in the boost curve. Under normal circumstances, the sensitivity is left at the factory set level 20. If your boost curve is wavy through the rev range, change the sensitivity to 15. If your boost curve drops off at the end of the rev range, change the sensitivity to 25.
Repeat these steps in all of the boost groups you have selected.
eBoost2 Troubleshooting
After installing the eBoost2 or eBoost STREET, my engine is over-boosting/under-boosting.
• Check that the e-Boost solenoid is installed correctly.
• Ensure the factory boost control solenoid is not connected in the hose between the pressure source and the wastegate actuator
• Ensure the length of the wastegate actuator rod has not been modified; refer to the manufacturer’s specifications.
If the over/under/irregular boost is still occurring…
• Check to see if the eBoost solenoid is not blocked or contaminated with dirt, oil build-up or debris
• Check the joining hoses for splits, cracks or loose connections and ensure they are not blocked, kinked or restricted, particularly if the
the existing hose was reused
• Pressure test the wastegate actuator for leakage, the diaphragm or housing may be cracked or split
If the over/under/ irregular boost is still occurring…
• Ensure the smooth and free operation of the wastegate arm in the turbo exhaust housing.
• Check that the hose between the eBoost and the inlet manifold is not obstructed, broken or kinked.
• Double-check that the OBS is higher than the boost pressure you aim for.
• Check the Blow-off Valve for leakage. Some are used as over-boost valves
If the over/under/ irregular boost is still occurring…
• Gate pressure may be too close to your boost pressure – ensure the correct sensitivity setting.
Here is a handy self-help guide to helping you with your Turbosmart install and answers to some of the most frequently asked questions we get here. Turbosmart recommends that you get your products fitted and tuned by a qualified technician. If you choose to install the product yourself, ensure you have all the necessary tools and technical knowledge to perform this task.
Thank you for picking up the latest Turbosmart catalogue. As we look back on 25 fantastic years of innovation and growth, we continue to look towards the future as we release some revolutionary new products that will cement our reputation as innovators and market leaders.
Please contact us here and fill out a quick form so that our team can efficiently help you!
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From our humble beginnings to establishing ourselves as a global brand. Turbosmart is well on track to lead the future in turbo technology.
Our engineers, build and track test all products in-house. Therefore, we ensure we’re continuously producing the highest quality blow-off valves, wastegates, boost controllers, gauges, pressure regulators, and hoses. For this reason, our products are designed to be used on both track and street applications.
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