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Author Topic: EDC15P - differences in N75DC 1.2tdi ANY vs 1.2 tdi AYZ lupo 3l -- why??  (Read 5391 times)
hansdevogel89
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Im currently looking into the differences in various 1.2 tdi maps, edc15p+, from lupo 3l and audi a2

I cant find a reason for different N75 duty cycles between AYZ and ANY (up to 5% at 3000rpm and 20mg iq)
Both engines use exactly the same turbocharger and actuator rod (looked up partnumbers in ETKA)

019AE, 019AA, 019K, 019BC as were in the Lupo 3l have higher DC's maps (right picture)
019D, 019BL as were in the Audi a2 3l al have lower DC's (left picture)

My question is: why??
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vwaudiguy
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« Reply #1 on: November 19, 2015, 04:08:51 PM »

Is it possible to post the different binaries? I would look for other changes elsewhere in the mapping. Less aggressive mapping for tame Audi folk?  Grin
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hansdevogel89
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« Reply #2 on: November 19, 2015, 04:17:01 PM »

Lol Grin Here are some files. Could be, but boost target maps, torque limiters and
injection duration maps are identical....
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adam-
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« Reply #3 on: November 20, 2015, 03:32:56 AM »

What about the N75 part number?  Slightly numb-er valve?
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ddillenger
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« Reply #4 on: November 20, 2015, 03:51:06 AM »

You realize the same man likely didn't develop both calibrations?
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hansdevogel89
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« Reply #5 on: November 20, 2015, 05:29:35 AM »

What about the N75 part number?  Slightly numb-er valve?

part no is 1h0906627a, it is the same in all 1.2 tdis from 1999-2006, good suggestion though
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hansdevogel89
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« Reply #6 on: November 20, 2015, 05:36:33 AM »

You realize the same man likely didn't develop both calibrations?

I understand. But will this influence boost development in a noticable manner, or are the differences too small to notice

I made a good file 82hp/196nm (tested) for BL, and now want to tune the AE
Transfered al tuning related maps (torque, smoke, boost and duration maps) to the AE file,
because stock AE was te same stock D/BL file, except for N75 DC.
Would it be better to stick with AE duty cycles, or use the ones for the D/BL, if there is any noticable difference after all.
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cherry
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« Reply #7 on: November 20, 2015, 06:33:23 AM »

This is not a big difference for me. It´s only in "low" load (IQ) and it will be regulated. Maybe exhaust and intercooler is a little bit different. Compare other EDC15P+ and you will see even from automatic to manual gearbox is difference sometimes...
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hansdevogel89
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« Reply #8 on: November 20, 2015, 08:37:12 AM »

This is not a big difference for me. It´s only in "low" load (IQ) and it will be regulated. Maybe exhaust and intercooler is a little bit different. Compare other EDC15P+ and you will see even from automatic to manual gearbox is difference sometimes...

Ok thank you. So i assume both might be ok to use in a mild stage 1 tune
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