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Modify the Motorbike Through the IAT sensor

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If you are looking for high quality products for your car or motorbike, look no further. We are sure you will find the perfect product for you at Racext. Do not hesitate to contact us with any questions or requests. We are here to help you make your vehicle perfect.Modify the Motorbike Through the IAT sensor (THE AIR TEMPERATURE SENSOR) it seems absurd but apparently it is real, let’s go and see together what it is.

What is the IAT sensor?

The IAT sensor is a sensor present in the air filter box of all electronically controlled petrol or diesel engines of our motorcycles.

The control unit needs to know the temperature of the intake air to calculate the right amount of petrol (or diesel) and the ignition advances.

This is because the density of the air increases as the temperature decreases. This means that for the same volume there will be a greater mass of air drawn into the combustion chambers. Obviously, the density of the air also varies in relation to the atmospheric pressure, and there are often also pressure sensors to inform the control unit.

It is interesting to note that with a decrease of only 10 ° C the air density increases by about 3% (if at 20 ° C 100 grams of air were sucked into a cylinder at 10 ° C about 103 grams will be sucked) therefore there would be a 3% decrease in the air / fuel mixture. Thanks to the information on the temperature provided by the IAT, the control unit (ECU) coherently increases the fuel injection or decreases it based on the detected temperature data.

How is the iat sensor composed?

it is an NTC that is a resistance that changes its value as the temperature changes in a negative way (the lower the temperature, the higher the resistance value and vice versa).

Then the IAT transforms the temperature into a resistance value, which can therefore be interpreted by the control unit. Here we realize that we could intervene in this detection point by arbitrarily inserting a different resistance to make the ECU believe that there is a different temperature from the real one. This will produce a variation on the correction of the petrol injection (increasing or reducing it depending on the value entered, in relation to the real temperature)

Why Modify the Bike Through the IAT Sensor?

it is an easily accessible sensor, which acts over the entire rpm range and under all load conditions during acceleration (not at constant throttle), and drives the ECU to use pre-established greasing according to its internal tables. Therefore, the risk of inducing the ECU to use indiscriminate values ​​of injection and ignition advance is avoided. At constant gas the Lambda cycle excludes the intervention of the IAT avoiding unnecessary waste of additional fuel and restoring optimal consumption conditions.

Once you understand the operating principle of the additional control units, you want to try to play with the IAT measurements to try to improve the performance of the bike. Above all because on some models the problem of the ON-OFF effect, the lack of accelerator readiness and delivery gaps due to the excessive thinness of the standard carburetion is evident.

Typical effects of Modifying the bike Through the IAT sensor
✔ Elimination of the ON-OFF effect when opening and closing the accelerator.

✔ Greater promptness of response to the accelerator.

✔ Fuller engine at low end, high to low gears are held. jerk-free regimes.

✔ Elimination of the dispensing hole present on 3-4000 rpm.

✔ More mellow and usable delivery throughout the rev range, the engine is less grumpy than when it ran lean.

✔ Fuller engine at high revs, with more reach.

✔ Consumption substantially unchanged (they rise slightly only if taken by the more inviting engine, you begin to drive more happily).

✔ All these advantages are obviously felt more if you install an open exhaust, which tends to empty the bass and the modification recovers this loss.

✔ Same considerations for those who mount a more permeable filter that allows the engine to breathe better, which therefore benefits from an enrichment of the air / petrol mixture.

Evidently this is one of the cases in which, if done well, this modification has tangible merits, beyond the limits of the case.

Try our additional control unit that will increase the power of your bike by acting on the iat sensor

ATTENTION THE PRODUCTS INDICATED ON THE SITE ARE UNIVERSAL PRODUCTS ADAPTABLE TO THE INDICATED VEHICLE, THE PRODUCTS MAY REQUIRE AN ADAPTATION OR MODIFICATION FOR THE INSTALLATION ON THE INDICATED VEHICLE, GIVEN THE NUMBER AND LEVEL OF MODELS AND MOTORIZATION, NO LIABILITY IS ASSUMED IN OUR DUTY TO POSSIBLE INCOMPATIBILITIES AS THEY ARE NON SPECIFIC UNIVERSAL PRODUCTS
if you believe that the product is not suitable for your vehicle, do not install it, contact customer service via info@raceleader.it and return it for a refund. our company assumes no responsibility for incompatibility or damage

 

Frequently Asked Questions (FAQ) for modifying the motorbike through the IAT sensor:

Q: What is the IAT sensor? A: The IAT sensor is a sensor located in the air filter box of electronically controlled petrol or diesel engines in motorcycles. It measures the temperature of the intake air and provides this information to the engine control unit (ECU).

Q: Why does the control unit need to know the air temperature? A: The control unit uses the air temperature data to calculate the appropriate amount of fuel injection and ignition timing. As the temperature decreases, the air density increases, and the control unit adjusts the fuel injection accordingly.

Q: How does the IAT sensor work? A: The IAT sensor is an NTC (negative temperature coefficient) resistor that changes its resistance value based on temperature. It converts the temperature into a resistance value, which is then interpreted by the control unit.

Q: Why would someone modify the bike through the IAT sensor? A: The IAT sensor is easily accessible and influences the fuel injection across the entire rpm range and under various load conditions during acceleration. By modifying the IAT measurements, it is possible to improve the bike’s performance, such as eliminating the ON-OFF effect, improving throttle response, achieving a fuller engine at low-end, and addressing delivery gaps.

Q: What are the typical effects of modifying the bike through the IAT sensor? A: Some of the typical effects include eliminating the ON-OFF effect when opening and closing the throttle, improving throttle response, achieving a fuller engine at low-end with smoother regimes, eliminating the dispensing hole present at certain RPMs, having a more usable power delivery throughout the rev range, and experiencing increased power at high revs. Fuel consumption is generally unaffected unless driving habits change significantly.

Q: Are there any prerequisites for experiencing the benefits of modifying the IAT sensor? A: The benefits are more pronounced when combining the modification with an open exhaust or a more permeable air filter that allows the engine to breathe better.

Q: Is the modification suitable for all motorcycles? A: The products indicated on the website are universal products adaptable to the specified vehicles. However, they may require adaptation or modification for installation. It is important to note that the company assumes no liability for possible incompatibilities or damages. If you are uncertain about compatibility, it is advised to contact customer service and return the product for a refund.

If you have any further questions or concerns, please contact customer service via info@racext.com

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Delivery times may vary depending on the product. For example, centraline typically have delivery times of 3-7 business days, while exhaust systems may have delivery times of 4-12 business days. 

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Important: Before proceeding with the purchase or use of our sport exhausts, please read the following notice carefully.

The products sold through this website are intended exclusively for sporting and competitive use. This means they have been designed and manufactured to be used in controlled environments, such as closed circuits or areas designated for sporting competitions, where emission and noise regulations may differ from those applied on public roads.

Public Road Use Not Allowed: It is emphasized that the installation and use of these devices on vehicles intended for circulation on public roads may not be permitted under the laws of your reference country regarding emission and noise regulation, as they are not designed for road use but for sporting use.

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By continuing with the purchase, the buyer acknowledges and agrees that the use of the products is limited to sporting and competitive contexts as defined above and assumes full responsibility for any legal consequences arising from improper use of the products.

Modify the Motorbike Through the IAT sensor

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