What limit maps/constants need to be adjusted to allow higher boost via MBC/EBC?

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Topic: What limit maps/constants need to be adjusted to allow higher boost via MBC/EBC? (Read 10962 times)

elRey

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	What limit maps/constants need to be adjusted to allow higher boost via MBC/EBC? « on: April 06, 2010, 10:37:41 PM »

What limit maps/constants need to be adjusted to allow higher boost via MBC/EBC?

I'm not talking about tuning a higher requested torque just yet. But allowing a higher boost via external control (MBC/EBC).

I'd like to discuss in stages.

1st stage) boost higher than stock 'boost' limit, but below max 'torque' limit.
2nd stage) boost high enough to exceed max 'torque' limit.

Assuming injectors/MAF/MAP are calibrated.

Stage 2 might flow into the subject of tuning a higher requested torque which I'll like to avoid for this discuss. Or adjusting AFR/timing.

Thanks,
Rey


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Tony@NefMoto

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	Re: What limit maps/constants need to be adjusted to allow higher boost via MBC/EBC? « Reply #1 on: May 27, 2010, 04:22:26 PM »

You need to:
-increase the allowed boost deviation (deviation of actual boost from desired boost)
-increase the allowed airflow (max airflow for the given RPM)

I think that is it if I recall correctly.


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boomerro

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	Re: What limit maps/constants need to be adjusted to allow higher boost via MBC/EBC? « Reply #2 on: July 01, 2010, 06:47:33 PM »

Quote from: Tony@NefMoto on May 27, 2010, 04:22:26 PM

-increase the allowed airflow (max airflow for the given RPM)

what map is this?


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Quote from: Tony@NefMoto on October 01, 2010, 06:00:05 PM

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boomerro

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	Re: What limit maps/constants need to be adjusted to allow higher boost via MBC/EBC? « Reply #3 on: July 01, 2010, 06:48:59 PM »

is that MLMAX?


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Quote from: Tony@NefMoto on October 01, 2010, 06:00:05 PM

The goal of this site is to openly discuss ME7 tuning and promote good practices.

elRey

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	Re: What limit maps/constants need to be adjusted to allow higher boost via MBC/EBC? « Reply #4 on: July 02, 2010, 03:38:56 PM »

Quote from: Tony@NefMoto on May 27, 2010, 04:22:26 PM

- ELDOB (currently 50 hPa / .73 psi) ?
- Huh

any hint to max flow/RPM map you're talking about

Thanks,
Rey


« Last Edit: July 02, 2010, 03:47:17 PM by elRey »	Logged

Tony@NefMoto

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	Re: What limit maps/constants need to be adjusted to allow higher boost via MBC/EBC? « Reply #5 on: July 09, 2010, 10:36:05 PM »

KFMLDMX is the air mass limit for diagnosis.

Sorry for the late reply.


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elRey

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	Re: What limit maps/constants need to be adjusted to allow higher boost via MBC/EBC? « Reply #6 on: July 12, 2010, 12:17:23 PM »

Thank you again.


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nyet

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	Re: What limit maps/constants need to be adjusted to allow higher boost via MBC/EBC? « Reply #7 on: September 28, 2016, 09:54:59 AM »

There is zero good reason to do it this way.


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