03-16-2023, 04:29 AM | #3455 |
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[QUOTE=talontdone;29915355]Why do you think my HPFP pressure drops so much? It is indeed super cold up here in Calgary ... IATs are dropping as I get it into it up till about peak TQ, then start to turn upwards again.... I wonder if it's my LPFP struggling to keep
Wow, strong boost with that GC, makes me think i should be in a comfort zone around 25psi with ease with this turbo... your happy with it?
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03-16-2023, 02:37 PM | #3456 | |
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2017 m240i xDrive 10.99@122.86mph bootmod3 stage 2+ ots
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03-16-2023, 09:16 PM | #3457 | |
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[QUOTE=Jnat;29940141]
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17 BMW 340iX / DAW UF/ DS2 HPFP
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03-16-2023, 10:03 PM | #3458 | |
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But I would recommend at least getting a log of full 3rd gear into a second or 2 of 4th gear to see how it behaves when you shift. |
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03-16-2023, 11:47 PM | #3459 |
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Hi everybody I was checking over my car for this upcoming summer and found some shadow codes present. I cleared them and ran a few logs with my 2016 340i. I'm not great at reading logs so I'd like someone to check them over. From my understanding it looks like I have crazy timing corrections. AFR's seem like they're good. On the initial WOT my car might be slightly over boosting, but seems to recover and go back to normal. The logs are posted below.
I've had intermittent shadow codes that I've seen pop up over the 6 months I've had the car. The car pulls great, but in daily driving activities I've noticed minor lurching when shifting and slight sluggishness in comfort/eco pro compared to 3 months ago. Codes posted below also. I’ve seen the shadow codes 20E120 and 102A22. CDB309 was always there once I tuned the car. The other two shadow codes 118001 and 11CF30 are new to me. MHD scan at the bottom of this post. Any thoughts are appreciated thanks 2016 BMW 340i X-Drive (50,456 miles) MHD Stage 2+ 93 Oct xHP Stage 2 Catless DP VRSF CP B58TU HPFP MST CAI Original injectors Plugs (NGK 94201KT2) and Coils (Bosch 0986221124KT1) have 5000 miles on them Oil changed 2000 miles ago (Liqui Moly 5w-30) Outside atmosphere temp: 40 degrees fahrenheit during logs https://datazap.me/u/calebkrey/test-...46-47-48-49-54 - DME active codes - CDB309 - No message (climate air distribution status, 0x2E6), receiver DME, transmitter IHKA. - DME shadow (inactive) codes - 102A22 - Hot film air mass meter, signal: too high. 118001 - Mixture control: Fuel-air mixture too lean. 11CF30 - Mixture control: Multiple fault. 20E120 - Crankcase ventilation, vent hose: not connected/faulty. - Transmission active codes - None - Misc. information - 3/16/2023 MHD 4.0.1 Voltage 12.22 V Last flashed file : v3.6 stg2 hpfp 93_98 VIN: WBA8B7G57GNT14679 Factory software: HWEL 3074 v003_019_009 HWAP 307D v255_255_255 BTLD 3075 v000_001_025 SWFF 3076 v010_007_005 TPRG 347E v010_007_007 Current software: HWEL 3074 v003_019_009 HWAP 307D v255_255_255 BTLD 3075 v000_001_032 SWFF 3076 v080_017_003 TPRG 347E v080_017_004 CAFD 2742 v000_145_006 Current PRG (hex): 3076501103 ECU build date: 2015.10.09 ECU status: - - Readiness - Misfire: Complete. Fuel System: Complete. Components: Complete. Catalyst: Not avail. Heated Catalyst: Not avail. Evaporative System: Complete. Secondary Air System: Not avail. A/C Refrigerant: Not avail. Oxygen Sensor: Complete. Oxygen Sensor Heater: Complete. EGR System: Complete. |
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03-17-2023, 09:19 AM | #3460 | |
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03-17-2023, 09:22 AM | #3461 |
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Wow that’s great. Do you suggest I should just start running the Stage 2 tune or try adding 1-2 gallons of e85 to smooth out the timing?
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03-17-2023, 01:36 PM | #3463 | |
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03-17-2023, 03:34 PM | #3464 | |
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Do you think your pump fuel is water-free? And your fuel tank has no water in it? Especially in the winter? Utopia ... But I agree with one thing - the higher quality - the better, especially if bigger quantities used.
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03-17-2023, 05:19 PM | #3465 | |
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03-17-2023, 06:37 PM | #3466 |
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10% ?
That would be pretty low quality Ethanol (90%). Isn’t that what logs are for anyway? Or do you rely on the flex fuel system blindly? I’d be much more concerned about the injectors and engine in general, than for not being able to extract the maximum power due to corrections. Many use Bioethanol due to lack of E85 (which contains more pure Ethanol in theory… but what the reality is, only few know). If gasoline in say California is crap, what makes you think the E85 is mother’s milk? So far I have not read any complaints from Bioethanol users, but as with everything else - one must be cautious and make sure to use quality products (and personally verify that, to the extent possible). This may even ensure higher quality blend than an unknown quality E85 pump gas.
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03-19-2023, 03:50 AM | #3467 |
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Hello good people,
There are some values I don't understand, when reading my logs. Could someone be so nice to explain what is: -knock control ratio (I typically get values oscillating between 1 and 2) -boost limit (%) (eg. 327%) -load actual or load target (%): the value in my logs are often around 197-198. 197% of what? Thank you!
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03-24-2023, 03:02 PM | #3468 |
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MHD stage 2+ HPFP best map
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2018 BMW 540i Mods: TU Pump, Catless DP, MST Intake, New Stock Gap plugs(Champion), New Ignition Coils(Went with red ones for the look, didn't need replaced) MHD stage 2+ tune XHP stage 3 tune I have been trying different maps and e85 mixes for MHD stage 2+ HPFP as the 93 OCT map was having constant timing corrections. I ended up finding that the stage 2+ HPFP 95OCT map with an e35-e38 blend runs perfectly and the stage 2+ HPFP e40 map on e45 runs almost perfectly but has an extremely high WGDG so I decided to run the 95OCT map. Below are the two logs, let me know what you guys think, curious if anybody else is running their setup this way as well to avoid high 90 WGDC. STAGE 2+HPFP 95OCT on e37mix: https://datazap.me/u/blakeroscoe/mhd...52&zoom=51-145 STAGE 2+HPFP E40 on e45mix: https://datazap.me/u/blakeroscoe/mhd...58&zoom=22-128 |
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03-24-2023, 06:06 PM | #3469 | |
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In terms of performance there's not so much in it I think between 95<->e40 except top end where the E40 is marginally faster. WGDC only goes over 90% shortly when you hit 6000+ rpm so I wouldn't worry too much about it personally. All 3 ots stage2+ maps by MHD (also the 93oct one) run really great combined with a bit of ethanol to perfect the timing advance. The MHD ots tunes seem really catered towards high octane.. with ethanol being the easiest solution for that. |
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03-25-2023, 04:11 AM | #3470 | |
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Reply in regards to safe rail pressure levels.
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Log showing rail pressure act vs target: https://datazap.me/u/blakeroscoe/log...-49-58&solo=21 Log showing all data (same log): https://datazap.me/u/blakeroscoe/log...49&zoom=33-142 |
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03-25-2023, 05:37 AM | #3471 | |
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https://datazap.me/u/zd/vanos?log=0&data=18-19-21-26 (e40 st2+) Even on 95oct map, same thing https://datazap.me/u/zd/stg2-mhd-hpfp-95-102?log=0&data=18-19-21 Seems to do it too. No worries probably normal during shift |
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03-26-2023, 12:51 PM | #3473 |
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Hey guys-- I could use a 2nd set of eyes for these logs. Car is Gen 1 B58 8AT with Alabama pump 93 gas, and a high flow cat dp. I've been running BM3's OTS Stage 1 93 tune (even with High flow cat thinking it would be easier on the motor).
I did 2 pulls: a 2nd to 6th and a 3rd to 6th. Had a knock event in the 2nd to 6th pull when I shift to 5th which is concerning and also timing looks to exceed normal deviation. I know BM3 typically runs hot, and I'm thinking it's best to just flash to a 91 tune and use 93 pump. Curious what ya'lls thoughts are. 2nd to 6th (w/ knock event and whacky timing): https://www.bootmod3.net/log?id=6420...729b8bf2cee1a2 3rd to 6th (No knock but whacky timing corrections): https://www.bootmod3.net/log?id=6420...90c6b2c46455aa Edit: Meant to mention I replaced plugs with OEM about 1k miles ago, car consistently uses Shell 93, and ~98k miles (50k of said miles with this tune). |
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03-26-2023, 06:14 PM | #3474 |
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Hey all, it's spring so I finally started custom tuning my B58 Supra. Have some questions around some things I am seeing in my logs.
Mods: Pure700 turbo Inlet pipe MAP GESI catted downpipe BM3 self tuning First question: For some reason in my logs, both Torque and Load requested/actual drop below what I have set in the tables. You can see in the link below I have the load/torque tables flat 4,000 rpm, but in the logs it drops after 5500rpm. I notice the load limit data item is 200 until 5700rpm and then drops to 160. Is there a table I am missing? This is really messing up my boost curve. http://norcalmotorsports.org/users/b...Load_Supra.png Here is the datalog of the fourth gear pull: https://datazap.me/u/razorlab/pure70...33-34-41-42-49 Second question: Is there a way to get Bootmod3 to log gauge pressure? Both absolute and relative log total boost without subtracting atmospheric pressure. Third question: What causes the throttle to close, load going over target or torque going over target? I'm noticing some throttle closures during the pull. Fourth question: What's the best way to tune out the boost spikes between shifts? I am getting some pretty big spikes that are causing the throttle to close every shift. You can see a multiple gear pull here with that issue: https://datazap.me/u/razorlab/mysupr...40&zoom=47-161 Also, if you see anything else in the logs that I should attend to, please let me know. I am still coming up to speed on tuning this platform! |
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03-28-2023, 08:32 PM | #3475 |
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Hey all,
Finally voided the warranty on my B58, ran some logs and I think there are some MAJOR issues with timing, corrections, and knock. For some reason my timing dips into the negatives on throttle, is this normal? I am new to logging/tuning, and have compared my logs with others and it seems my timing, corrections, and knock is bad. 2017 340i xDrive - 52K Kilometers Spark Plugs changed @ 34K Kilometers Costco 91 Octane Fuel Mods: BM3 Stg 1 91 Octane Custom Exhaust XHP Stg 3 Log 1: https://datazap.me/u/trenaplex/stage...0-41-42&solo=7 Log 2: https://datazap.me/u/trenaplex/stage...1-42&solo=7-13 Log 3: https://datazap.me/u/trenaplex/stage...pm?log=0&data= Any input appreciated. Thanks |
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03-28-2023, 11:48 PM | #3476 | |
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