can i fit a 3" maf to my 180 leon cupra directly or do i need to change my ths tip and induction kit to a lcr one? thanks v much!!
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3" maf
- Thread starter stef cupra
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- maf
You can change your MAF to a 3" one but would need joiners.
The 3" one has a 80mm end, yours is either 75mm or 70mm.
This alone won't give you much, or any benefits. This is usually only done on bigger turbo applications.
The 3" one has a 80mm end, yours is either 75mm or 70mm.
This alone won't give you much, or any benefits. This is usually only done on bigger turbo applications.
id think you would need to change the tip, or more likely get a reducer.
Although id be more concerned about what you are going to do regarding the ECU coding.
Why?
Well, if you change to a larger maf housing then the readings provided to the ECU by the maf sensor will be incorrect.
The airflow is measured by the maf and the ecu then uses this information to calculate the volume of air passing (based on maf size etc) which is then used for a number of things, fueling being one of them.
If you increase the size of the maf housing, then the sensor will be providing figures to suggest less air is passing through than actually is as to pass the same volume of air the 'air speed' will be lower. - which while im no expert could lead to lean running?
Imagine two taps, one had a larger spout than the other. For each to move the same amount of water per hour, the tap with the smaller spout will have to allow water through at a faster speed to keep up with the quantity of water passing through the larger spout.
So you can then see why a larger maf housing could be passing more air than the sensor is indicating.
Although id be more concerned about what you are going to do regarding the ECU coding.
Why?
Well, if you change to a larger maf housing then the readings provided to the ECU by the maf sensor will be incorrect.
The airflow is measured by the maf and the ecu then uses this information to calculate the volume of air passing (based on maf size etc) which is then used for a number of things, fueling being one of them.
If you increase the size of the maf housing, then the sensor will be providing figures to suggest less air is passing through than actually is as to pass the same volume of air the 'air speed' will be lower. - which while im no expert could lead to lean running?
Imagine two taps, one had a larger spout than the other. For each to move the same amount of water per hour, the tap with the smaller spout will have to allow water through at a faster speed to keep up with the quantity of water passing through the larger spout.
So you can then see why a larger maf housing could be passing more air than the sensor is indicating.
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