The CRTD4® Marine Diesel Tuning Box from TDI-Tuning for the Yanmar 4BY2-150 148 BHP / 150 PS / 110 KW / 320 NM / 236 LBFT is at the cutting edge of digital tuning box technology for marine engines and represents a revolution in engine performance remapping. Powered by an 80 MHz ARM microprocessor, the CRTD4 remaps engine output moment to moment based on data received via the engine sensor interface harness. The engine fuelling profile of the vehicle is then remapped to improve power and torque delivery creating smoother and more responsive performance.
For Marine vehicles the CRTD4® Marine Diesel Tuning Box is a versatile engine tuning solution. For larger engine vessels the increases in power and torque will ensure that even under the most trying weather conditions the engine(s) will be able to produce the torque needed to maintain smooth sailing. For smaller crafts our tuning solution can be switched between 7 modes, from least to greatest performance gains, allowing you to find the optimum engine output combination for your leisure boat.
The UK’s leading tuning box just got better! Now with Bluetooth capabilities the CRTD4 tuning box brings the benefits of tuning to your fingertips.
Now you can control the performance of your engine from the comfort of your driver’s seat with the TDI Tuning App. Connect to your tuning box and enjoy total control, transforming your driving experience.
Turn the tuning box on/off using the TDI-Tuning Mobile app. With a touch of a button you can turn your TDI-Tuning Box on, harnessing the full power capabilities of your engine. Or, you can turn it off, reverting the vehicle to stock.
With the TDI-Tuning App adjusting the power output is easy. Simply connect your phone to the TDI-Tuning Box and toggle between the 7 power modes at your disposal. Mode 1 offers the least amount of power, and, is commonly used for fuel saving reasons. Mode 7 is the biggest power increase you have on offer, use it for maximum power!
The TDI-Tuning Box comes built in with a 30 second warm up timer. This means the map file will not begin to run until 30 seconds after your engine is turned on. This is to protect your engine, primarily for cold engine starts. If you would like to increase, or decrease this map timer, you can adjust it using the TDI-Tuning App.
Activate ‘Discreet Mode’ on the mobile app to turn off the LED lights on the TDI-Tuning Box. All lights will be turned off, putting the tuning box into ‘Discreet Mode’. You can use this mode if you are trying to conceal the tuning box from casual inspection in the engine bay.
Connect with other tuners throughout the world on our social networks. Contact our team directly through the app using one of our social media or web chat channels.
TDI Tuning digital tuning boxes come pre-programmed for your engine - you just plug it in, secure it with the supplied cable ties and drive off to enjoy an immediate and significant increase in performance.
Tuning boxes come complete with fitting instructions, TDI Tuning also have step-by-step fitting videos available for many of our most popular vehicles.
If you need an expert to help you with your fitting then a TDI Tuning engineer is only a phone call away.
Connect with
your vehicle
Connect & control from your phone
Turn the tuning box on/off using the TDI-Tuning Mobile app. With a touch of a button you can turn your TDI-Tuning Box on, harnessing the full power capabilities of your engine. Or, you can turn it off, reverting the vehicle to stock.
With the TDI-Tuning App adjusting the power output is easy. Simply connect your phone to the TDI-Tuning Box and toggle between the 7 power modes at your disposal. Mode 1 offers the least amount of power, and, is commonly used for fuel saving reasons. Mode 7 is the biggest power increase you have on offer, use it for maximum power!
The TDI-Tuning Box comes built in with a 30 second warm up timer. This means the map file will not begin to run until 30 seconds after your engine is turned on. This is to protect your engine, primarily for cold engine starts. If you would like to increase, or decrease this map timer, you can adjust it using the TDI-Tuning App.
Activate ‘Discreet Mode’ on the mobile app to turn off the LED lights on the TDI-Tuning Box. All lights will be turned off, putting the tuning box into ‘Discreet Mode’. You can use this mode if you are trying to conceal the tuning box from casual inspection in the engine bay.
Connect with other tuners throughout the world on our social networks. Contact our team directly through the app using one of our social media or web chat channels.
