Severe timing oscillations

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Topic: Severe timing oscillations (Read 43012 times)

nyet

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	Re: Severe timing oscillations « Reply #45 on: November 23, 2011, 11:37:33 AM »

Quote from: Rick on November 23, 2011, 06:09:05 AM

it was simply poorly calibrated torque model.

PLEASE details!


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phila_dot

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	Re: Severe timing oscillations « Reply #46 on: November 23, 2011, 02:17:02 PM »

Quote from: Rick on November 23, 2011, 06:09:05 AM

Well on this car, oscilaltions were an easy fix, it was simply poorly calibrated torque model. I've attached the fixed screenshot. There are some knock corrections but they can be smoothed out.

In for details as well. KFMIOP?

Quote from: Rick on November 23, 2011, 06:09:05 AM

What is interesting on this log, is that ZWBAS is higher than ZWGRU. Only addition I can think of is down to warmup which had well finished. Need to take a look at KR.

My guess is DZWWL or possible that was not the current array member of ZWBAS. It would be really nice to log the ouput ZWBAS rather than the array members.


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Rick

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	Re: Severe timing oscillations « Reply #47 on: November 23, 2011, 02:23:22 PM »

Yes,

Load was hitting 210, and IOP was untouched hence the intervention.

Rick


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nyet

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	Re: Severe timing oscillations « Reply #48 on: November 23, 2011, 03:49:09 PM »

I'm starting to think this is why tuners started with heinously underscaled MAFs (see also GIAC's hilarious 100mm MAF)


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Gonzo

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	Re: Severe timing oscillations « Reply #49 on: November 23, 2011, 05:27:30 PM »

Quote from: nyet on November 23, 2011, 03:49:09 PM

I'm starting to think this is why tuners started with heinously underscaled MAFs (see also GIAC's hilarious 100mm MAF)

Its just easier. You run into less issues with the torque monitoring.
Its not proper but it works.


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julex

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	Re: Severe timing oscillations « Reply #50 on: November 28, 2011, 12:42:14 PM »

I think I found the source of my timing oscillations. KFZWOP and KFZWOP2 maps. Once my timing would get close enough to touch the value in respective map for RPMs/NWS, it would get knocked down near the basic timing in KFZW and KFZW2 maps.


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Rick

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	Re: Severe timing oscillations « Reply #51 on: November 29, 2011, 12:02:16 PM »

On your case zwist was following zwsol, so yes the OP would play a part. You need to stop it following zwsol,

Rick


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judeisnotobscure

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	Re: Severe timing oscillations « Reply #52 on: December 02, 2011, 02:59:21 PM »

I made kfmiop and kfmirl jive a little better and presto, intervention is gone.


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I have a b5 s4
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nyet

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	Re: Severe timing oscillations « Reply #53 on: May 04, 2012, 10:02:38 AM »

the source of my oscillations isn't op/op2 related, it seems its ARMD related

http://nefariousmotorsports.com/forum/index.php?topic=1905.0


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