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Author Topic: Easily scale your MAF for larger housings! (now with 50 percent more hitachi!)  (Read 17789 times)
59eurobug
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Sorry for the late reply, but no I didn't correct. thought it was done automatically. I went to download the plugin for tuner-pro but its 122 euro now? thats almost 150. is there a different option?
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nyet
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WWW

is there a different option?

You didn't bother reading any of the checksum stickies in the checksum forum?

Or, say, anything in the s4wiki?

Or even my sig?
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
59eurobug
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I was actually trying to remember who's signature had the link to the checksum checker/corrector(yours) but couldn't find it. So thanks for posting, I only really have time for about an hour each night to read up and learn (2 jobs) so I apologize that I have been shortcutting it.
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vwaudiguy
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.
« Last Edit: November 25, 2016, 11:21:41 PM by vwaudiguy » Logged

"If you have a chinese turbo, that you are worried is going to blow up when you floor it, then LOL."
EuroXs4
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Is mlhfm the only thing that needs to be changed in regards to scaling the maf???
« Last Edit: February 19, 2017, 07:17:18 AM by EuroXs4 » Logged
rnagy86
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Did anyone ever try this on a 95 mm MAF with Bosch sensor element? It seems that the generated
MLHFM is way out of what it is supposed to be as for me at least the MAF values get way overscaled
and throws load calculation completely out of whack and by scaling it back down i am almost at the
same values as with the OEM 83mm MAF but then obviously the sensor can't really read much more
than in the OEM housing.
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armageddon
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Did anyone ever try this on a 95 mm MAF with Bosch sensor element? It seems that the generated
MLHFM is way out of what it is supposed to be as for me at least the MAF values get way overscaled
and throws load calculation completely out of whack and by scaling it back down i am almost at the
same values as with the OEM 83mm MAF but then obviously the sensor can't really read much more
than in the OEM housing.


Did you solve this?

I am experiencing the same thing, although I manually calculated them, but the difference between the values given with mafadjust.exe is very small
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rnagy86
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It was turbulent air. The plastic housing deformed and there was a huge leak on the bottom part
which could not be seen and it was sucking air in like crazy there. Since then i replaced it with a new
one and calculated for myself and that has been giving good results for the last couple of months.
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armageddon
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ok, thanks.

I am using an aluminiun housing and have no leaks,

I down scaled it a bit and for now its all good.
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rnagy86
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ok, thanks.

I am using an aluminiun housing and have no leaks,

I down scaled it a bit and for now its all good.

I am basically running an MLHFM calculated with a spreadsheet instead of the tool,
I think the offiset (MLOFS) handling is buggy in the script but I did not have time to look at it.

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vanrhj
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I am basically running an MLHFM calculated with a spreadsheet instead of the tool,
I think the offiset (MLOFS) handling is buggy in the script but I did not have time to look at it.


Can u share the Spreadsheat please?
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vanrhj
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Did you solve this?

I am experiencing the same thing, although I manually calculated them, but the difference between the values given with mafadjust.exe is very small
Is 33.24% enough scaling on a 85mm maf housing?
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vanrhj
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Hi All
Do u start the MAF scaling and end scaling with the calculated percentage or will start and end scaling be divergent?
The reason behind my question is that my lowest value on the scale is 3.5 Kg/hr but when I do a log
the Air mass sometimes drop below that value to around 2.xx kg/hr. Can someone please explain why this is happening.
I used the Bosch sensor in a 83mm housing and did the scaling at 52%. Normal intake diameter for the mk5 gti is 67mm.
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vanrhj
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I am logging with the Meastro cable, which I think is the same thing. I also have VCDS. Should I log a different set of channels? I think it is accurate when it says it is maxed out because my fueling also gets off with O2 corrections maxing out at +25
[/In maestro do u start scaling and end scaling with the same value or must one be a negative value and the other a positive value?quote]
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