JB4tech.com - International Turbo Tuning Discussion
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TwitchingStone TwitchingStone is offline
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Car: 2007 335i
Arrow Correct BEF for application? - 04-10-2022, 05:42 PM

Hi all! Please let me know if anyone notices anything of concern. My main concerns are of course if anything is immediately out of place, and secondly if Im running the correct BEF in regards to timing. All logs are done at ~10c (50F) running Canadian 93 octane gas. Mods are as follows:
  • JB4 w/ pump gas BEF
  • EBay 7 intercooler
  • DIY DCI
  • Water meth (roughly 80/20) FSB controlled

The car has 145,000KM, or 90,098 miles.
Attached Files
File Type: csv P32_M3_R1_220405_1242.csv (385.3 KB, 49 views)


2007 335i
- JB4 w/ BEF
- 7 eBay special intercooler
- no name charge pipe
-DIY DCI
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Steve @ BMS/Fuel-It!'s Avatar
Steve @ BMS/Fuel-It! Steve @ BMS/Fuel-It! is offline
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Car: 135i
Default 04-11-2022, 10:24 AM

Looks normal thus far.



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TwitchingStone TwitchingStone is offline
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Default 04-11-2022, 12:35 PM

Thanks Steve! Do you think switching to a race BEF would be appropriate to realize any potential timing improvements?

Im assuming the car will failsafe if it ends up being a bad idea, but asking never hurts.


2007 335i
- JB4 w/ BEF
- 7 eBay special intercooler
- no name charge pipe
-DIY DCI
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Steve @ BMS/Fuel-It!'s Avatar
Steve @ BMS/Fuel-It! Steve @ BMS/Fuel-It! is offline
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Default 04-12-2022, 10:00 AM

Better logs will help determine that...do one in 3rd from 2k to redline on a safe private track.



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Video of our Stage 2 LPFP upgrade installation.

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TwitchingStone TwitchingStone is offline
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Default 04-12-2022, 11:25 AM

Got it, will do. Im sure theres more reading to be done on my end, Ill try and get a better frame of reference for myself as well.


2007 335i
- JB4 w/ BEF
- 7 eBay special intercooler
- no name charge pipe
-DIY DCI
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TwitchingStone TwitchingStone is offline
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Car: 2007 335i
Default 05-09-2022, 03:45 PM

Hi Steve. I did some more logging as best I could. Not the full run that you need but it's difficult where I live. Played around with the boost additive to learn about the effect that has on timing. I'm on pump gas and using single nozzle charge pipe injection, so I don't expect the world by any means. Mostly wondering if this looks in line with other people that you've seen.

Of note, an additive of 40 compared to 20 seems to have very little impact on my ignition average if any; my timing curves look very similar at a peak of 16 or a peak of 19. I've read as many posts as I could find relating to my set up, but I'm no professional.

I'm also on stock down pipes, and as I understand EGT's can play a role in this.

what are your thoughts?
Attached Files
File Type: csv 220509_1500.csv (41.5 KB, 38 views)
File Type: csv P32_M3_R3_220508_1359 - P32_M3_R3_220508_1359.csv (420.7 KB, 34 views)


2007 335i
- JB4 w/ BEF
- 7 eBay special intercooler
- no name charge pipe
-DIY DCI
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TwitchingStone TwitchingStone is offline
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Car: 2007 335i
Default 05-09-2022, 11:23 PM

Before anyone responds, I have better logs! one set is at a 40 additive and one at 50. I was hoping to exacerbate any issues, but all I can see is that the stock fuel pumps seem to be slightly above range with the 50 additive.
Attached Files
File Type: csv additive 40 - additive 40.csv (365.0 KB, 37 views)
File Type: csv additive 50 - additive 50.csv (387.8 KB, 36 views)


2007 335i
- JB4 w/ BEF
- 7 eBay special intercooler
- no name charge pipe
-DIY DCI
Reply With Quote
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Cannon @ BMS Cannon @ BMS is offline
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Default 05-10-2022, 10:47 AM

Quote:
Originally Posted by TwitchingStone
Before anyone responds, I have better logs! one set is at a 40 additive and one at 50. I was hoping to exacerbate any issues, but all I can see is that the stock fuel pumps seem to be slightly above range with the 50 additive.
Logs look great. Let's see some logs with some more boost!


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TwitchingStone TwitchingStone is offline
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Default 05-10-2022, 11:48 AM

Quote:
Originally Posted by Cannon @ BMS
Logs look great. Let's see some logs with some more boost!
timing is ok? I notice it's not the ign avg of >2 that we should shoot for.

more boost?! I like the way you think. I'll give it a shot, what's the worst that can happen hahaha.


2007 335i
- JB4 w/ BEF
- 7 eBay special intercooler
- no name charge pipe
-DIY DCI
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Cannon @ BMS Cannon @ BMS is offline
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Default 05-11-2022, 10:29 AM

Perfectly fine.


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It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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