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Author Topic: Newbie need help with rs6 4b stage 3 tune.  (Read 10773 times)
dennisn
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« on: July 28, 2017, 01:45:35 PM »

Hello nefmoto-forum,
my name is dennis and im from germany.

About my person:

the last 5 years i only rebuild and tune porsche and some vag engines. 2 years ago i start with remaping ecus and make many succesfull stage 1 and 2 tunes, also with help from this forum.

Now i have a project with a friend and his rs6 4b.

the car get engine rubuild, upgrade turbos, 3 zoll pipe with 200er hjs kats, wagner intercooler and 630ccm siemsens deka injektor.

My problem is that i never calibrate fueling with bigger injectors and bigger turbos without any diagramms. Thats why i register here. there are many forums for remaping but i think you guys are the best for vag petrol engines. I attach the ori file( the hole last week i fight with mtm tuning protecion)

First i want to calibrate the injectors:
Is it right that i have start with krkte and tvob?

Would be nice i we could tune the car step by step with my logs togheter,if its necessary i will pay for help or spend to forum.

BR
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sonique
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« Reply #1 on: July 28, 2017, 04:01:31 PM »

stage 3 rs6 original gearbox ?
i think very short time die the gearbox
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dennisn
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« Reply #2 on: July 28, 2017, 10:36:05 PM »

Sry mate i forgot to tell that the gearbox is also reworked. The company tell it should be safe for 700ps...

BR
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_nameless
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« Reply #3 on: July 29, 2017, 05:28:23 AM »

so what you want is the community to tune your car for you? you say tune from logs but i dont see any provided
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Giving your mom a tuneup
dennisn
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« Reply #4 on: July 29, 2017, 05:55:57 AM »

Of course no, just need some help.

At the moment i look for information to calibrate the injector. It seams more difficult than I think with this injectors....

When the car runs i will post the logs.

Big thanks to MattV8 for his mappack.
« Last Edit: July 29, 2017, 06:25:09 AM by dennisn » Logged
dennisn
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« Reply #5 on: July 30, 2017, 01:20:25 PM »

Is it right that for first start with the deka injectors its only necessary to mod krkte ans tvub, or do i miss something?

I attach picture of the values, are they okay?

Thank your for help!
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_nameless
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« Reply #6 on: July 31, 2017, 09:38:15 AM »

to start yes. block 32 is ltfs. set fkkvs all to 1's edit krkte until your ltft's are within 2-3% +/-. be sure you are using the right injector lag times too otherwise that will give you strage results when tunung krkte. also a wideband gauge would be best to verifly that fueling is good. best is to tune injectors with the turbos on wastegate spring pressure and stock maf. once you have your injectors dialed in you can use fkkvs to fix some odd lean / rich spots. next scale the larger maf
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Giving your mom a tuneup
dennisn
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« Reply #7 on: July 31, 2017, 01:21:14 PM »

Hi Marty thanks for your answer.

Do krkte also effects on idle injection ? I get ltft about 25% but only on the first bank second is bit lower , does it mean i need to rise up krkte?

Which map i have to correct for injector lag time?

I add an short log from vcds, wideband lambda comes next. car run like a tractor Grin

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dennisn
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« Reply #8 on: July 31, 2017, 01:35:53 PM »

Now i understand what do you mean with injector lag time, TVUB. Sorry for my english....

Do i have to rise up tvub in low volts or how i can get richer in idle?

Thanks!

BR
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dennisn
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« Reply #9 on: August 20, 2017, 11:35:42 AM »

Hi,

Today i make the first ride with the custom rs6 from a friend. Car get upgraded turbos, wagner intercooler, 630 dekas, 3" pipes with 200z hjs cats, compression reduktion and a revised gearbox
After many experimantal car run with a krkte of 0.52 and tvub values of 6,882v-7,9552v-9,9264v-11,8976v-15,9104v    1,34968ms - 1,19228ms - 0,91798ms - 0,77389ms - 0,25105ms.
ltft and stft look okay but in some area afr rise up to 1.25. Should i start to correkt fkkvs?

Annother problem is the boost, it raise up to 2500mb and then waste-gate open...
Is there a solution for the 5120 hack for me7.1.1? A member in this forum start to make this work but its still in progress. Or do i musst limit boost to 2550mb? And if yes how i must to do it, the limiter are allready reduced i think.

Thank you for every help!

If someone want to make this tune together with me, i will of course pay for help.

BR


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nyet
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« Reply #10 on: August 20, 2017, 11:42:09 AM »

Log please.
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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
aef
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« Reply #11 on: August 21, 2017, 12:52:27 AM »

2nd thread for the same car and same problem, srsly?
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nyet
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« Reply #12 on: August 21, 2017, 02:28:47 PM »

2nd thread for the same car and same problem, srsly?

And still no sign of a ME7L log. Ridiculous.
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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
dennisn
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« Reply #13 on: August 21, 2017, 03:09:04 PM »

Which values do you want to see nyet?

I find a member in this forum whos help me with 5120 hack. I will post the results!

Thank you!
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nyet
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« Reply #14 on: August 21, 2017, 04:49:04 PM »

Why would you skip any of the ones described in the logging section in the s4wiki?
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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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