Conversion - Are "simple" conversions effective?
On the market today there are several so-called conversion kit sold cheaply. They give promises of instantly turning your car into an environmentally friendly vehicle.
Unfortunately these conversion kits can be risky, for the environment as well as for the vehicle's durability. These kits are not likely to meet the requirements of the current national conversion legislation (from July 1, 2008), for vehicles from 1993, or newer.
There are several "Flexi Solutions", that are composed of an attachment unit connected to the injectors giving an estimated fuel concentration. Unfortunately the engine and the ECU functions are not that uncomplicated.
The need for more enriched fuel when using ethanol or ethanol blends is not constant; the engine's fuel requirements vary depending on load, R.P.M, temperature and a number of other conditions.
The fact that the lambda (claimed by the manufacturers of these conversion kits) can regulate the fuel requirements is not quite true. The lambda can only regulate the fuel within a limited “window” regarding R.P.M and load etc. Outside of this window the fuel blend ratio (fuel/air) mainly depends on the values programmed into the ECU. If there are larger lambda value variations within the lambda window the ECU will be unable to adjust the fuel amount fast enough.
This can damage the engine, especially in the high load area where it is crucial that the vehicle gets the correct amount of fuel.
Another important issue is starting properties where the vehicle basically starts on the petrol content of the fuel (for ethanol blends). Some simpler systems do have a starting function (fuel enrichment) but to comply with exhaust emission standards it not good to just supply the engine with a fixed amount of fuel.
The risk of high exhaust emissions is enhanced, especially for NOx emissions if the combustion temperature is not correct.
The OBD function cannot work properly when attachments are connected to the ECU. In many cases the engine warning light will go on which means that the emergency program is operating.
Incorrect fuel blends can also be harmful for several important exhaust cleaning components, such as the catalytic converter.
On the market there are also Fuel Pressure Regulators that claim to give the correct amount of fuel when using E85 or mixing fuels. The problem with this solution is similar as with the above mentioned flexifuel solutions. And, an increased pressure can increase the risk of leakage and an altered injector situation which is negative for combustion as well as for function.
There are a number of risks involved with simpler conversions and BSR would advise you not to use these. If simpler solutions worked, naturally these would be a part of our product range.
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Unfortunately these conversion kits can be risky, for the environment as well as for the vehicle's durability. These kits are not likely to meet the requirements of the current national conversion legislation (from July 1, 2008), for vehicles from 1993, or newer.
There are several "Flexi Solutions", that are composed of an attachment unit connected to the injectors giving an estimated fuel concentration. Unfortunately the engine and the ECU functions are not that uncomplicated.
The need for more enriched fuel when using ethanol or ethanol blends is not constant; the engine's fuel requirements vary depending on load, R.P.M, temperature and a number of other conditions.
The fact that the lambda (claimed by the manufacturers of these conversion kits) can regulate the fuel requirements is not quite true. The lambda can only regulate the fuel within a limited “window” regarding R.P.M and load etc. Outside of this window the fuel blend ratio (fuel/air) mainly depends on the values programmed into the ECU. If there are larger lambda value variations within the lambda window the ECU will be unable to adjust the fuel amount fast enough.
This can damage the engine, especially in the high load area where it is crucial that the vehicle gets the correct amount of fuel.
Another important issue is starting properties where the vehicle basically starts on the petrol content of the fuel (for ethanol blends). Some simpler systems do have a starting function (fuel enrichment) but to comply with exhaust emission standards it not good to just supply the engine with a fixed amount of fuel.
The risk of high exhaust emissions is enhanced, especially for NOx emissions if the combustion temperature is not correct.
The OBD function cannot work properly when attachments are connected to the ECU. In many cases the engine warning light will go on which means that the emergency program is operating.
Incorrect fuel blends can also be harmful for several important exhaust cleaning components, such as the catalytic converter.
On the market there are also Fuel Pressure Regulators that claim to give the correct amount of fuel when using E85 or mixing fuels. The problem with this solution is similar as with the above mentioned flexifuel solutions. And, an increased pressure can increase the risk of leakage and an altered injector situation which is negative for combustion as well as for function.
There are a number of risks involved with simpler conversions and BSR would advise you not to use these. If simpler solutions worked, naturally these would be a part of our product range.
go back
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