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Old 23-06-2011   #1
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Tuning boxes compared with remaps

A Remap or a Tuning Box? A comparison from ExpertTuning

Both solutions have their place.

A remap is the more sophisticated solution. A remap re-programs the ECU to directly and comprehensively modify fuelling, turbo, airflow, ignition timing and dozens of other parameters that determine how your engine runs.

A tuning box only directly adjusts fuelling by modifying data from the fuel pressure sensors and allowing the ECU to modify its usual engine management instructions. The modified fuelling has a knock-on effect to other engine management parameters but they are not controlled as directly as they would be using a remap.

Do they both work equally well?

A tuning box simply cannot provide the same degree of control and improvement as a tuning box BUT a good tuning box can still do a very good job on most turbo-diesels, for power, responsiveness and MPG improvement.

Why would I even consider a tuning box if I could get a remap?

Some later models of cars such as VWs, Audis etc have protected ECUs preventing them being remapped through a diagnostics port. This means the only way to remap them is to remove the ECU. If your car is still under warranty you may not want to take up this option. A good tuning box will still give you exceptionally good improvements, but you will also be able to easily remove it from your vehicle while it goes into a garage during the warranty period.

What makes a tuning box a good one?

Some cheap tuning boxes are nothing more than a simple resistance circuit that fools your ECU into making a set percentage adjustment to fuel pressure across the entire rev range. It will not be tailor-able for each individual engine. A good tuning box is digitally controlled and programmed to respond differently under different loads and at different rev ranges, for different engines. As with all things, you get what you pay for.

What other differences exist?

A remap is a modification to your ECU. When you sell the car you sell the new map with it. A tuning box can usually be transferred to a new vehicle when you change your car. You may need to buy a new cable if it has a different fitting, but the program can be updated cheaply or even at no cost when you make the change.

For more detailed explanations for any questions you have feel free to call us at ExpertTuning. We supply both solutions because we firmly believe they both have their place.
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Old 23-06-2011   #2
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Re: Tuning boxes compared with remaps

What do TMC have to say about this?
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Old 23-06-2011   #3
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Re: Tuning boxes compared with remaps

I'll certainly be interested in the answer too. If the TMC tuning box covers the whole range of vehicles that a remap does, or a more conventional tuning box, I'll be surprised but at the same time very interested in fitting them to my customer's cars where their device is available. We're not into inventing the wheel - just fitting the best we can source as developments take place.

The short intro above necessarily covers the most common questions running through many driver's minds. There are always exceptions and we're as keen to learn about them and apply them as anyone else.

TMC - I'll be in touch!
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Old 23-06-2011   #4
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Re: Tuning boxes compared with remaps

did no one point you to the rules for traders? http://www.fiatforum.com/rules.html
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Old 23-06-2011   #5
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Re: Tuning boxes compared with remaps

The posting in this section was actually suggested by one of the forum moderators Dave.
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