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Author Topic: 1.8t bex stage2 massive knock retard  (Read 840 times)
ulek3pl
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« on: September 28, 2019, 07:13:33 AM »

Hello! I have problem with my bex. Engine is after full rebuild, because i buy car with damaged turbo and head. I'm getting a lot of knock retards. I dont think is real knocking, because if i advance ignition from 12 degress to 17 degress, i always have same values of knock retards. I changed knock sensors with proper torque, engine mounts to ori Avon and gearbox mount to Lemforder. I make long 2.75 downpipe, but with same result. Clutch with dmf is too new from Luk, but i think this can be bad balanced (previus owner change it). I feel body vibrations on idle, body and gearbox lever vibrations when accelerating. Somebody have same problem? Shocked
« Last Edit: September 28, 2019, 07:19:15 AM by ulek3pl » Logged
BlackT
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« Reply #1 on: September 28, 2019, 07:49:48 AM »

Make a log with ME7 logger
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ulek3pl
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« Reply #2 on: September 28, 2019, 08:13:30 AM »

I dont think is real detonation problem, because if i retard timing or advance by 5 degress, retard is always the same. Afr is 12.8 dropping to 11.8. Spec and acutal boost is ideal without overboost (max 20mbar).  Anything make noise for knock sensors, but i dont know what. I bet on clutch. Build is from my previous car where are all fine with max 2-3 cfs near revlimit and only clutch, gearbox and wiring with ecu is other.
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nyet
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« Reply #3 on: September 28, 2019, 11:54:51 AM »

Just post a log.
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ME7.1 tuning guide (READ FIRST)
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ulek3pl
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« Reply #4 on: September 28, 2019, 01:54:58 PM »

Read again, this is no detonation knock...  If i stun knock sensor and make more advanced ignition, i have 910 egt at 200 km/h and dont hear any knock with phones. Only when i run again with knock correction my turbo is pink glowing together with manifold studs and lost power.
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BlackT
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« Reply #5 on: September 28, 2019, 02:07:14 PM »

ARMD, tourqe intervention?
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ulek3pl
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« Reply #6 on: September 28, 2019, 02:19:01 PM »

If i have disabled torque intervention it possible? And do torque intervention make cfs on 020 channel?
« Last Edit: September 28, 2019, 02:33:43 PM by ulek3pl » Logged
nyet
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« Reply #7 on: September 28, 2019, 04:07:42 PM »

Just. Post. A. Fuckin. Log.
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

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 experience.
bk56190
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« Reply #8 on: September 28, 2019, 11:01:18 PM »

And do torque intervention make cfs on 020 channel?
No it doesn't make cf.
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ulek3pl
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« Reply #9 on: September 29, 2019, 02:25:13 AM »

Just. Post. A. Fuckin. Log.
on which channel i can log fake noise?  Roll Eyes
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Blazius
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« Reply #10 on: September 29, 2019, 04:17:03 AM »

on which channel i can log fake noise?  Roll Eyes


Just post a normal log man.
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ulek3pl
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« Reply #11 on: September 29, 2019, 05:16:05 AM »

Read again, this is not real knocking. It also knocking with 0,2 boost with the same retard values. When i have bent exhaust valve more boost or more ignition = more cfs. There is no matter ignition and boost, always is the same values of retard, always! Then stop asking fucking logs.
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Blazius
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« Reply #12 on: September 29, 2019, 07:39:58 AM »

lmao
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contrast
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« Reply #13 on: September 29, 2019, 08:22:15 AM »

Read again, this is not real knocking. It also knocking with 0,2 boost with the same retard values. When i have bent exhaust valve more boost or more ignition = more cfs. There is no matter ignition and boost, always is the same values of retard, always! Then stop asking fucking logs.

Then stop asking for fucking help.
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ulek3pl
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« Reply #14 on: October 09, 2019, 01:52:21 PM »

solved, for "experts" its caused by bad timing belt damper.
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