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Blazius
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« Reply #30 on: July 01, 2019, 04:36:11 AM »
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Yes
Btw krummer means exhaust manifold(abgaskrummer). One means modelled temp in exhaust manifold ,one is modelled temp at kat. |
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« Last Edit: July 01, 2019, 04:44:41 AM by Blazius »
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totti
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« Reply #31 on: July 01, 2019, 06:45:45 AM »
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Yes
Huh I'm a little bit confused. So the BTS is disabled until 920 celsius, but we have a limit in TABGBTS around 400 celsius. Maybe my map is wrong or the original software working with that values? Sorry if this a stupid question but I don't really see the point when TABGBTS has any influence. |
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« Last Edit: July 01, 2019, 06:51:37 AM by totti »
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prj
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« Reply #32 on: July 01, 2019, 09:55:22 AM »
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The function is active and running, but enrichment happens after 920C. Nothing special there.
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totti
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« Reply #33 on: July 01, 2019, 10:13:29 AM »
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The function is active and running, but enrichment happens after 920C. Nothing special there.
Ok but the enrichment is what we need to cool down the engine. So until 920C I cannot melt the engine? |
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nyet
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« Reply #34 on: July 01, 2019, 06:46:23 PM »
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The FR illustrates the difference between TABGBTS and FBSTABGM perfectly. You really ought to take a look, because we're just running around in circles here.
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« Last Edit: July 01, 2019, 06:50:28 PM by nyet »
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totti
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« Reply #35 on: August 09, 2019, 12:21:00 PM »
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I switched back FBSTABGM to the original version. I made a log and the problem is that from 5200 rmp the bts is enabled. I made only this WOT, and before that I run with 90kph. I uploaded the log. What can I do? I have k03s turbocharger with 60mm downpipe and cat. Does the EGT values look good or I should change the EGT model parameters? I know that I have overboost, I will change the duty cycle of N75 valve.
Thanks for the help
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nyet
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« Reply #36 on: August 09, 2019, 01:38:43 PM »
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If modeled EGT gets to 900C you probably want BTS to activate.
You can lean out BTS if you want, but increasing the BTS threshold is likely not a great idea.
You really want it activating even if LAMFA isn't asking for fuel.
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totti
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« Reply #37 on: August 09, 2019, 01:48:08 PM »
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If modeled EGT gets to 900C you probably want BTS to activate.
You can lean out BTS if you want, but increasing the BTS threshold is likely not a great idea.
You really want it activating even if LAMFA isn't asking for fuel.
Yes I want to protect the parts. The question is that the model is still good and I have more than 900C before the cat or I should change the model parameters to get more realistic value. From the log what I can see is that before the cat the temperature is over 900C but in the exhaust manifold maximum is 800C. |
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nyet
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« Reply #38 on: August 09, 2019, 02:32:04 PM »
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Yes I want to protect the parts. The question is that the model is still good and I have more than 900C before the cat or I should change the model parameters to get more realistic value. From the log what I can see is that before the cat the temperature is over 900C but in the exhaust manifold maximum is 800C.
Absolutely doable but ideally you'd want to wire in a real pre-cat EGT sensor before messing with the model. |
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totti
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« Reply #39 on: August 19, 2019, 07:48:41 AM »
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Yesterday I made a log from my friend's car. AUQ motorcode with a software modification and with a fmic. He has this software since 2010. He does not have BTS and the engine is still ok. 80000km with this kind of software.
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nyet
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« Reply #40 on: August 19, 2019, 09:29:05 AM »
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I'm assuming the enrich in that log is from LAMFA and not BTS.
12 (.82) isn't bad, my own bts doesn't go below 11 AFR (.75)
BTS is for long distance autobahn part throttle cruising at high speed where LAMFA is requesting 1.0
Just because somebody else's car is "fine" doesn't mean you dont need BTS.
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totti
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« Reply #41 on: August 19, 2019, 10:04:40 AM »
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I'm assuming the enrich in that log is from LAMFA and not BTS.
12 (.82) isn't bad, my own bts doesn't go below 11 AFR (.75)
BTS is for long distance autobahn part throttle cruising at high speed where LAMFA is requesting 1.0
Just because somebody else's car is "fine" doesn't mean you dont need BTS.
I know that if something is working in one car it does not mean that it is good for the others. Just it was strange for me that car can run since 2010 without any issue, and there was not used for cruisin. |
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nyet
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« Reply #42 on: August 19, 2019, 10:14:50 AM »
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I'm saying that high speed part throttle cruising with LAMFA 1.0 and no BTS is going to cause very high EGTs.
Something your typical driver may not see, and something a track car will NEVER see.
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Blazius
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« Reply #43 on: August 19, 2019, 12:02:45 PM »
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Side note: what the hell is that requested boost pressure line..
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nyet
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« Reply #44 on: August 19, 2019, 12:05:22 PM »
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Side note: what the hell is that requested boost pressure line..
Seriously. LOL @ trusting that dipshit yahoo. |
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