The Remapping Process 

Most people arrive at this page in an attempt to find out more about remapping and also how to decide which of the many companies to use to tune their vehicle.

Most companies that offer remapping are actually "Dealers" for some large and well known companies that make their money out of producing tuning files for these "Dealers" Sometimes the files are produced by individuals that are unheard of in the industry. How anyone can tell who produced a file and if it is any good is beyond us, we often get cars on our Rolling Road Dyno for "Power Runs" which produce a chart showing actual power and torque data, often to the surprise of the owners or the tuning companies who were promised much better results.

This really means that MOST Remapping companies are actually individuals and small businesses that should really be called installers as they just instal other peoples tuning files. Installing files via the OBD or Diagnostic socket is so simple that companies are now offering for sale devices that allow vehicle owners to instal up to 3 different files on their own vehicles, so bypassing the need for "Dealers", I'm sure that you can see where this is leading, soon there will be no need for "Dealers" and the tuning file producers can increase their profits as they wont have to share them with "Dealers".

Custom Remap, To us a custom remap is one that is created specifically for a particular Vehicle/Engine and Owner, so the tune reflects exactly what the customer wants, specifically Power, (Horse Power and Torque) The point in the rev range that the power increases and how high the engine will rev. At the other end of the range is a tune that is specifically aimed at increasing Miles Per Gallon. Often our customers demand a tune that mixes the two, Power and Economy

The vast majority of tuning file sellers and their "Dealers" produce standard tuning files which are pulled from a database of files based upon the ECU part Number and Software Version, this allows files to be returned to the "Dealers" within seconds and also allows the purchase of Tuning Files from online Databases of files based upon ECU and Software versions which could be uploaded to a car without even needing to read the original file - not something we would suggest is correct protocol.

Bespoke Remap, is the tuning of a vehicle that is carried out on a rolling road that seeks to match the requests of the customer. This takes hours to do properly if maximum power and efficiency is to be achieved. It is especially useful on heavily modified vehicles as it allows full customisation to match the changes in the engines characteristics.

I am sure that many people will be surprised to discover that many of the people producing "remapped" files actually have very little understanding of the way an engine works, they are just programmers that have picked up (often copied) the work of others, who often also lack the necessary understanding of how an engine works or its requirements.

Our Unique Custom Remap process is as follows.

  • Our customer makes an an appointment to have the remapping completed
  • Vehicle arrives at our workshop at the arranged time
    • A Vehicle Health Check is Completed as Below
    • A full diagnostic scan of the engine management ECU is completed
    • The engine is inspected and "Live Data" checked to ensure that the engine is running correctly
    • The Intake system is inspected and checked for leaks on vacuum and boost lines/pipes
    • Oil and Water levels are checked
    • The wheels and tyres are inspected and tyre pressure checked and adjusted if necessary
    • Any problems found during the Vehicle Health Check are reported to the customer.
  • If everything is working properly the current data and Maps are downloaded from the vehicle Engine Management System
    • In most modern vehicles the data is downloaded through the vehicle communications socket, sometimes by directly communicating with the ECU.
  • The data file and Maps are modified, in line with the customers requirements, this is a manual process, so every car receives a unique "tune"
  • The modified file is loaded back to the ECU
  • We can then Log the engine data and fine tune the Maps if required
  • The vehicle is then road tested and checked
  • A further engine diagnostic check is performed

We can also offer before and after "Power Runs" on our Rolling Road Dyno or Dynamometer by prior arrangement

Bespoke Tuning

For enquiries for our Bespoke tuning service please call us to discuss your vehicle, requirements and expectations, If you know or just call us for a chat and we will try to help you.

Call us on 01442 601029 during business hours or message us via Facebook


Over 45 Years Tuning Experience and Ongoing Training

We have been and continue to receive ongoing training in the the reading and remapping of modern engine ecu units, having been tuning vehicles since the days of carburettors it is actually a process that comes naturally to us. Being able  to change things like ignition timing without having to use a spanner is quite brilliant! We are able to tune for increased power, ecconomy or a balance between the two, you the customer decide. Our Rolling Road confirms the outcome.

We believe that the remapping service that we provide is second-to-none anywhere.

Our Rolling Road has changed Everything

With our own Rolling Road (actually called a Chassis Dynamometer) we can accurately measure the actual performance of any two or four (4x4) wheel drive vehicle (and 3 wheel drive also if the vehicle has two drive wheels) Following this we can examine the data, including Wideband o2, pressures, including boost and temperature and just about any other data that we like in association with the output from the rolling road to provide the information to adjust the many possible parameters that may need to be altered to give the required performance increase, Our Dyno allows us to check and test the results and make further changes until the work is complete and a final power run is completed to check the results.