ECU Remapping & Tuning For Combine Harvesters

Efficiency is the key to a successful harvest. The last thing any farmer needs is a combine harvester that slows to a crawl on steep hills – or grinds to a complete halt every time the unloading auger is engaged in the field.

We develop market-leading remaps that substantially increase the output of modern combine harvesters: Unlocking untapped reserves of power, improving tractability, and ensuring that equipment can cope with the demands of an increasingly fraught and difficult season.

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Backed by the industry’s most sophisticated R&D function, our engineers have developed a library of field-proven maps for the majority of modern combine harvesters – including all models of Claas, Fendt, Massey Ferguson, John Deere, Case IH and New Holland. These maps are installed by a global network of highly-trained and approved agents.

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When required, our engineers also have the capability to build custom maps that fulfill a specific function. Examples include improving fuel economy, unlocking low-end torque to improve performance on hilly terrain, or disabling an AdBlue system on a combine harvester that is being exported outside the European Union.

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Why Do We Remap Combine Harvesters?

Most agricultural manufacturers rely on modular manufacturing practices to keep costs down. The same engine is often re-used across several different models of combine harvester, with low-end models de-tuned in the factory to create more differentiation – and support a given manufacturer’s pricing strategy.

This practice means there’s often a lot of untapped headroom we can exploit to increase productivity.

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As an example, the Claas Lexion 8700 is powered by the same 15.6-litre Mercedes Benz OM 473 LA engine as the larger Claas Lexion 8800, but the Lexion 8700 only has an output of 626hp – 74hp less than the 700 hp available to its bigger cousin.

By making a series of carefully calibrated adjustments to the software that manages the Lexion 8700’s engine, we can unlock this extra horsepower without putting strain on the running gear, or otherwise exceeding the machinery’s limitations.

In cases where a model hasn’t been factory de-tuned to support a pricing strategy, there are still plenty of opportunities to find efficiencies. In many cases, fine-tuning parameters like turbo boost pressure, fuel delivery pressure and injection timing allow us to eke out 100+ extra hp, and a significant amount of extra torque.

It’s also possible to widen power bands to increase the amount of torque that’s available at the bottom of a given combine’s rev range, making it easier to tackle rough or hilly terrain. However, most farmers and contractors trying to remap a combine harvester are looking to maximise power output so that their equipment can multi-task more effectively.

As an example, many farmers want to be able to run their unloading auger while maintaining a consistent forward speed and engaging the rotor to process crops. Others want to know that they can tackle particularly heavy crops without their machinery slowing to a crawl, and it is these considerations that drive the development of our combine harvester remaps.

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Combine Harvester Remapping Explained

Remapping is an involved process, but the fundamentals are relatively straightforward. Every modern combine harvester has an ECU or electronic control unit that’s responsible for managing its engine. The ECU consults a database (or map) of values every time it needs to make a decision, and editing these values allows us to fine-tune engine performance.

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The adjustments we make will depend on the specifics of the engine, equipment and ECU but most combine harvester remaps demand a series of carefully-calibrated tweaks to fuel injection parameters and/or boost pressure in order to release more power.

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All of our combine harvester remaps are developed at our tuning HQ in the South West of England – using an exhaustive R&D process to ensure longevity.

All Avon Tuning HD remaps are also backed up by a full lifetime warranty against software malfunction and we always back up manufacturer’s default maps on our system, should clients need to roll their equipment back to its factory settings.

<strong>Industry-Leading</strong> Remapping Solutions

Industry-Leading Remapping Solutions

Avon Tuning HD have been global leaders in the agricultural remapping and tuning space since 2014. We have pioneered the development of effective combine harvester remaps and have a global network of authorised agents that are highly-trained to ensure an impeccable level of customer service.

If you are interested in remapping one or more combine harvesters, use our agent finder to locate your nearest authorised agent. If you are an agricultural engineer who is interested in offering combine harvester remapping to your customers or clients, please refer to our become an agent page instead. We are always interested in enquiries from suitably-qualified specialists.

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