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      08-05-2020, 05:45 PM   #1475
OzBMR
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Quote:
Originally Posted by alyabiev View Post
Timing corrections look like an abrupt drop on a curve with quite slow regain to the line. I see no such behaviour here.

Exactly this. This is a basic principle of ignition timing management - higher load on the SAME RPM needs less timing to prevent knock due to excessive cylinder pressure. Look at the sample ignition timing path with similar load curve profile (note: this is a base ignition table without any IAT/CT correction applied):
Quote:
Originally Posted by alyabiev View Post
Ignition timing advance profile looks really bad. Cat meltdown in 3, 2, 1.. What octane are you using?
Using the M240i timing table you've shown at 4000RPM load 180 target timing is 7.5 degrees and at 6000RPM load 180 it's 10.5 degrees.

Yes, target timing is lowered as IAT increases, but torque targets/load should be lowered if IAT is so high to result in such low ignition timing advance at WOT above 4000RPM.
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      08-06-2020, 12:47 AM   #1476
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Quote:
Originally Posted by OzBMR View Post
Quote:
Originally Posted by alyabiev View Post
Timing corrections look like an abrupt drop on a curve with quite slow regain to the line. I see no such behaviour here.

Exactly this. This is a basic principle of ignition timing management - higher load on the SAME RPM needs less timing to prevent knock due to excessive cylinder pressure. Look at the sample ignition timing path with similar load curve profile (note: this is a base ignition table without any IAT/CT correction applied):
Quote:
Originally Posted by alyabiev View Post
Ignition timing advance profile looks really bad. Cat meltdown in 3, 2, 1.. What octane are you using?
Using the M240i timing table you've shown at 4000RPM load 180 target timing is 7.5 degrees and at 6000RPM load 180 it's 10.5 degrees.

Yes, target timing is lowered as IAT increases, but torque targets/load should be lowered if IAT is so high to result in such low ignition timing advance at WOT above 4000RPM.
High IAT: torque target stays constant, load target increases, ignition timing decreases.

Low IAT: torque target stays constant, load target decreases, ignition timing increases.
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      08-07-2020, 05:00 AM   #1477
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New map revision

https://datazap.me/u/a90moe/new-revi...?log=0&data=10

Looks like its getting better, this is at 47C weather. 7.5/8 timing at 6600rpm should have gone to 6800rpm stupid me OzBMR What do you think?
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      08-07-2020, 07:35 AM   #1478
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https://datazap.me/u/thomas/b58-stoc...og=0&data=3-19

M140i opf
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      08-07-2020, 07:55 AM   #1479
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Quote:
Originally Posted by F80Moe View Post
New map revision

https://datazap.me/u/a90moe/new-revi...?log=0&data=10

Looks like its getting better, this is at 47C weather. 7.5/8 timing at 6600rpm should have gone to 6800rpm stupid me OzBMR What do you think?
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Stock DP, XHP, MHD 95/102 OTS E30 fuel, Hoosier DR2 11.5@121mph about 8.0s 100-200
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      08-07-2020, 08:03 AM   #1480
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Quote:
Originally Posted by T_H_O_M_A_S View Post
Nice stock data, all looks about normal for OPF car.

How long have you had it and do you plan to mod?

You previously had M135i?
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Dorch Stage 2 HPFP, CG Precision DS-1, XHP, MHD Stage 2 HPFP E30 @ E42 100 - 200 6.96s 10.93@127mph
Stock DP, XHP, MHD 95/102 OTS E30 fuel, Hoosier DR2 11.5@121mph about 8.0s 100-200
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      08-07-2020, 09:01 AM   #1481
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New logs Pure800 E50 rev 1.12

https://datazap.me/u/tnilson/pure800...og=0&data=3-21
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      08-07-2020, 03:16 PM   #1482
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Something is not right from 3000 to 4500 RPM your ECU is dumping boost erratically through the wastegate and your rail pressure also dropping at the same time.

Boost vs WDGC: https://datazap.me/u/tnilson/pure800...0&data=3-21-32

Rail Pressure vs Boost vs WDGC: https://datazap.me/u/tnilson/pure800...ata=3-19-21-32

Quote:
Originally Posted by Supr3me View Post
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      08-08-2020, 12:04 AM   #1483
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Ugh.
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      Yesterday, 04:51 AM   #1484
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Quote:
Originally Posted by OzBMR View Post
Nice stock data, all looks about normal for OPF car.

How long have you had it and do you plan to mod?

You previously had M135i?
max stage2 on the stock turbo maybe hpfp .
in the next weeks go out and check for some exhaust systems
dont want it to be too loud anymore
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      Today, 10:00 AM   #1485
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+1 Change the tuner, Jordan Tuned works with MHD and I also saw good results from MHD in house tuner Pure Boost.

Quote:
Originally Posted by Solid67 View Post
Man maybe its time to find another tuner Since your on MHD, I would hit up David Shoup. He really seems to be on top of his game and his customers' cars are killing it with stock turbos. I can only imagine what he can do with your setup.
Quote:
Originally Posted by Supr3me View Post
Lol I'm 12 revs in and Oz is beating my 1/4 times with a stock turbo
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