marto7
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« Reply #15 on: August 24, 2019, 09:39:07 AM »
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Will made it 60 75 and new log
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prj
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« Reply #16 on: August 24, 2019, 11:47:30 AM »
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Welcome to 91oct tuning.
Well, except for the bad trims.
I don't care what it's being tuned on. Running 6 deg at rev limit with 1.5 bar boost is just asking to blow shit up. It will probably make more power with way less boost too. Ah well, whatever. |
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nyet
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« Reply #17 on: August 24, 2019, 11:59:52 AM »
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I don't care what it's being tuned on. Running 6 deg at rev limit with 1.5 bar boost is just asking to blow shit up.
It will probably make more power with way less boost too.
Ah well, whatever.
usually the tradoff is around 12-15 deg, also IAT limited to some extent. Also why big turbos are a complete waste time for high compression motors on pump gas. |
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« Last Edit: August 24, 2019, 12:01:43 PM by nyet »
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marto7
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« Reply #18 on: August 24, 2019, 04:47:22 PM »
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@prj what you recomend to start with ? Lower boost to 1.3 ? Enrich the AFR from 3000 till redline ? Which is 6 deg ? Ignition before TDC ? What should be
@nyet On my logs IAT is not going above 40C. Isnt that good ?
Could water/meth injection help ? I have AEM kit sitting at the garage but not sure is it worth to install it.
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« Last Edit: August 24, 2019, 04:50:44 PM by marto7 »
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marto7
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« Reply #19 on: August 27, 2019, 12:57:21 PM »
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Made some changes and now looks better on logs i think, but still pull timing over 4k.Next step will reduce boost to 1.2-1.3bar and log again to see if ill get better results.Now car feel very good up to 4500rpm but after that losing power.What timing should i change ? How is the tune now ? Thanks
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nyet
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« Reply #20 on: August 27, 2019, 01:37:11 PM »
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Yes your boost is too high. Dont go over 1.5 bar req. Stick to 1.4 taper to 1.2 or 1.1
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« Last Edit: August 27, 2019, 01:40:18 PM by nyet »
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Blazius
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« Reply #21 on: August 27, 2019, 01:40:25 PM »
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You'll find that if you pull boost and allow / add timing,you will make power than with additional compressed air. timing should be above 20 at 6k I think on 1.8t( course if fuel allows)
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marto7
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« Reply #22 on: August 27, 2019, 02:08:15 PM »
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So first thing to do is change LDRXN and try first with 1.3bar boost. Do i need to change other maps or only from LDRXN ? Already scalled just a little bit more my MAF and now ps_w is together with actual boost.Will scale it with 1mm down, so ps_w will be just bellow boost.
Edit: I will change KFLDIMX last value from 1500 to 1300hPa
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« Last Edit: August 27, 2019, 02:26:46 PM by marto7 »
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marto7
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« Reply #23 on: August 28, 2019, 02:42:49 PM »
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Changed LDRXN but up to 5500rpm i still have 1,5 Boost (Desired and Actual) i dont know why.Checked LDRXNZK and it was same as LDRXN before i change it - was 2 same maps.Now ill change LDRXNZK to be 10 or 20% less than LDRXN. Do i need to change something else ?
When i see the logs i have two question.
Why AFR is go together Desired and Actual only to 6k rpm, than after that Actual goes to 10.8 when Desired is 11.6 ? There is no big changes in boost there
Why EngineLoad(actual) has up and downs ? Is this normal ?
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nyet
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« Reply #24 on: August 28, 2019, 02:59:29 PM »
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You are still requesting way too much load.
Lamba is going super rich likely due to a boost leak up top.
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aef
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« Reply #25 on: August 29, 2019, 12:11:43 AM »
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Lower your LDRXN to smooth out your req boost curve from 1.4 to 1.1bar and to have a nice maf curve.
While doing logs make sure to hit full throttle at 1500rpm. Your last log starts at 2500rpm.
Post your lamfa or what ever map you use.
attached two logs from amk engine with same turbo
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marto7
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« Reply #26 on: August 29, 2019, 02:20:39 AM »
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Thanks for advices, will check them after work.
And this is my LAMFA map
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marto7
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« Reply #27 on: August 29, 2019, 02:06:27 PM »
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Things got very complicated. I changed LDRXN only to request 190 max (1.2bar boost) and on last log i have a lot of changes:
1.Boost Pressure desired has start with 2.4mBar than goes to 2.1 and after that go up to 2.3. And this is Requested.Dont know from where it sees that i want more than 1.2bar.
2.AFR Desired is 11.9 all the way up to 5600rpm than goes little bit richer to 11.6. And this is without touching any fuel maps ...
3. Timing is a bit better. On the first run i have almost 0kw all the way. On second i have 1.5 on two cylinders.
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nyet
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« Reply #28 on: August 29, 2019, 02:27:24 PM »
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That requested boost doesn't bother you?
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marto7
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« Reply #29 on: August 29, 2019, 02:46:27 PM »
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It is.Im wondering from where is this map ? Its very different from what i want.
Edit: Maybe i should change KFMIRL map ?
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« Last Edit: August 29, 2019, 02:52:09 PM by marto7 »
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