S3 housing to AGU m3.8.3 MAF

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remembera

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	S3 housing to AGU m3.8.3 MAF « on: May 15, 2019, 02:45:54 AM »

Hi all, I will run s3 husing in 1.8T maf. From that Ive read in this forum the common way is just to copy the MAF voltage values from 1 car to the other. Ive found the s3 voltage MAF map but it has 512 values, mine has only 256. Ill be very thankfull if u hint me how I could make it properly. Also the x axis of S3 map has values of voltage mine has only numbers from 1-255. Im still newbie, so please excuse me if the question is noobie. Thanks in advance.


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nyet

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	Re: S3 housing to AGU m3.8.3 MAF « Reply #1 on: May 15, 2019, 08:58:34 AM »

You'll have to use excel or write a small program to delete every other entry.


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eliotroyano

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	Re: S3 housing to AGU m3.8.3 MAF « Reply #2 on: May 15, 2019, 12:19:29 PM »

Quote from: remembera on May 15, 2019, 02:45:54 AM

The best bet is use an old 12V VR6 MAF with it proper MLHFM calibration. It has 256 values. You can use a newer MAF Housing but extrapolation is not totally aligned.


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Tezotto01

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	Re: S3 housing to AGU m3.8.3 MAF « Reply #3 on: May 16, 2019, 04:34:29 AM »

The correct way to do it is to calculate the difference between the areas of the MAF's and to convey that difference to the 256 points using excel


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remembera

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	Re: S3 housing to AGU m3.8.3 MAF « Reply #4 on: May 16, 2019, 03:00:34 PM »

thanks a lot! Seems like the Vr6 housing is the best decision. Anyway Ive just wondering S3 housing and vr6 maf is almost the same diameter. Will it work if i stay with S3 housing but data from VR6? The sensor is AGU's sensor. Thanks in advance


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nyet

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	Re: S3 housing to AGU m3.8.3 MAF « Reply #5 on: May 16, 2019, 03:04:36 PM »

If you can't find a perfect match, i'd match sensors *first*, then scale by area like Tezotto01 suggested.

You can't make any assumptions about MAFs that use different sensors entirely.


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RS-MAD

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	Re: S3 housing to AGU m3.8.3 MAF « Reply #6 on: May 16, 2019, 05:28:01 PM »

You cant use S3 housing for AGU MAF as they are different mounting position. Use the VR6 one , or some older BMW.


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