Looking for RS4 MAF data in 95-100mm housing

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sda2

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	Looking for RS4 MAF data in 95-100mm housing « on: May 08, 2023, 12:05:47 PM »

Hi folks,

Im looking for reliable data for the RS4 maf sensor element in a 100mm housing.

Unfortunately I didnt find any data for the available housings.

Thanks in advance.


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prometey1982

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	Re: Looking for RS4 MAF data in 95-100mm housing « Reply #1 on: May 09, 2023, 12:07:22 AM »

Quote from: sda2 on May 08, 2023, 12:05:47 PM

Hi folks,

Im looking for reliable data for the RS4 maf sensor element in a 100mm housing.

Unfortunately I didnt find any data for the available housings.

Thanks in advance.

Multply stock RS4 map values to squares's difference between stock and new housings. I.e. new_value = new_housing_square/old_housing_square * old_value


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BlackT

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	Re: Looking for RS4 MAF data in 95-100mm housing « Reply #2 on: May 09, 2023, 03:12:17 AM »

http://nefariousmotorsports.com/forum/index.php?topic=4839.0

But be aware, RS4 MAF signal in original housing is very bumpy without airbox or venturi before it.


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sda2

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	Re: Looking for RS4 MAF data in 95-100mm housing « Reply #3 on: May 09, 2023, 03:56:02 AM »

Quote from: prometey1982 on May 09, 2023, 12:07:22 AM

Multply stock RS4 map values to squares's difference between stock and new housings. I.e. new_value = new_housing_square/old_housing_square * old_value

Thank you I'll try it.

Quote from: BlackT on May 09, 2023, 03:12:17 AM

http://nefariousmotorsports.com/forum/index.php?topic=4839.0

But be aware, RS4 MAF signal in original housing is very bumpy without airbox or venturi before it.

Thank you! We've been using RS4 MAFs for a long time in forced induction BMW setups and I found Vibrant filters to work really good even without an additional airbox.


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BlackT

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	Re: Looking for RS4 MAF data in 95-100mm housing « Reply #4 on: May 09, 2023, 05:40:59 AM »

Yes, with some filters it work really good.
This is log without any air filter or airbox, this thing betwen 3000 and 4000 rpm is turbo surge (tipical for K04-064 turbo) But still rest of RPM range whole time signal is bumpy. When I put air filter with ventury that signal is okay. But don t have any log in this moment


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