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Author Topic: Bosch me7.5  (Read 7859 times)
laringa
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« on: January 17, 2016, 01:28:16 PM »

Can someone tell me how much power can do through 80mm airflow sensor connected to bosch me7.5 ecu?
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adam-
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« Reply #1 on: January 17, 2016, 04:00:44 PM »

Airflow is not a direct measure of power.  Log MAF voltage and see if it's pegged.  I'd say atleast 450.
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laringa
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« Reply #2 on: January 17, 2016, 09:17:46 PM »

Is it possible to run the me7.5 on a TT without MAF as it is the only sensor that measures the load
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aef
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« Reply #3 on: January 18, 2016, 12:26:37 AM »

Yes it is, search for "mafless".
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adam-
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« Reply #4 on: January 18, 2016, 12:41:49 AM »

It's a hack though. There's no good reason not to run one, there's loads of space for one.
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littco
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« Reply #5 on: January 18, 2016, 02:48:41 AM »

It's a hack though. There's no good reason not to run one, there's loads of space for one.


Hack yes but a good one.

80mm maf is max grams of 292. But you need to appreciate that maf is converted in principle to load and that is used for axis. Therefore you can run more than the theoretical max but you axis's will stop reading after max load is reached.. 490bhp has been run without issue on a 80mm maf.

It is better Imo to fit an s4 maf and rescale the maf to account for this and associated load axis
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laringa
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« Reply #6 on: January 19, 2016, 10:41:41 PM »

Iittco thanks for this info and i would like to do as you described but i am very new to tuning the me7.5 and dont know how. Can you help?
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nyet
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« Reply #7 on: January 19, 2016, 11:17:32 PM »

If you are new to tuning you should not be running mafless.
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ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
Trim heatmap tool

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 ex
adam-
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« Reply #8 on: January 20, 2016, 12:07:20 AM »

I don't understand any advantage.  There has to be some room in the bay for a 4" bit of tube.
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dream3R
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« Reply #9 on: January 20, 2016, 01:35:52 AM »

some people prefer alpha-n.  Especially big builds.  Read GGHFM carefully as there are limiters there / RPM etc..
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How to work out values from an A2L Smiley

http://nefariousmotorsports.com/forum/index.php?topic=5525.msg52371#msg52371


Starting Rev's http://nefariousmotorsports.com/forum/index.php?topic=5397.msg51169#msg51169

noobs read this before asking http://nefariousmotorsports.com/forum/index.php?topic=9014.0title=


ORGORIGINAL 05 5120 creator for Volvo
ORIGINAL Datalogger (Freeware) Author
ORGINAL finder of the 'extra' torque' limits
I don't have ME7.01 A2L I just use ID
nyet
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« Reply #10 on: January 20, 2016, 10:13:37 AM »

I can't think of many 1.8t builds that make that kind of power. Not only that, it would require replacing the stock MAP sensor, and all that that implies as well.
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ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
Trim heatmap tool

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 ex
laringa
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« Reply #11 on: January 20, 2016, 11:49:02 AM »

I am running with stock maf. Just asking how much power can be done. Its a good idea to upgrade to s4 maf but i am new to tune bosch me7. Any help/suggestions apreciated
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dream3R
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« Reply #12 on: January 20, 2016, 01:23:58 PM »

I can't think of many 1.8t builds that make that kind of power. Not only that, it would require replacing the stock MAP sensor, and all that that implies as well.
True it depends on how driven he is but it can be done but ur right not for a noob
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How to work out values from an A2L Smiley

http://nefariousmotorsports.com/forum/index.php?topic=5525.msg52371#msg52371


Starting Rev's http://nefariousmotorsports.com/forum/index.php?topic=5397.msg51169#msg51169

noobs read this before asking http://nefariousmotorsports.com/forum/index.php?topic=9014.0title=


ORGORIGINAL 05 5120 creator for Volvo
ORIGINAL Datalogger (Freeware) Author
ORGINAL finder of the 'extra' torque' limits
I don't have ME7.01 A2L I just use ID
laringa
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« Reply #13 on: February 09, 2016, 11:53:38 AM »

Nyet. There is no map sensor in 18t it is a boost sensor. In only read positive pressure
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nyet
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« Reply #14 on: February 09, 2016, 12:53:14 PM »

By MAP I mean boost sensor, sorry, misnomer. Bad habit.

The stock boost sensor only reads 2.5 bar max.
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ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
Trim heatmap tool

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 ex
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