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BroggyG BroggyG is offline
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Default s55 Map 1 log review - Map 1 feels weak vs. stock - 09-13-2017, 09:24 PM

Just installed a JB4 to my stock 2015 M4 and included every connection. I live in high altitude (Denver, Colorado) and only have access to 91 octane fuel so I mixed in 4 gallons of 100 octane unleaded to make a full tank. The car feels noticeably weak in maps 1 & 3 vs stock (Both with 91 octane and the mix above ~93.4). I have attached 3 logs; first is Map 4 on fuel described above, second is map 1 on fuel described above, and last is map 1 on 91 octane only - although on a different day. Can anyone offer any advice or help?

Note - I did buy the car used but it appears completely stock.

Thanks!
Attached Files
File Type: csv Map4 93.4 Octane.csv (2.8 KB, 7 views)
File Type: csv Map1 93.4 Octane.csv (4.5 KB, 9 views)
File Type: csv Map1 91 Octane.csv (4.9 KB, 7 views)
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Steve @ BMS/Fuel-It! Steve @ BMS/Fuel-It! is offline
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Default 09-14-2017, 09:30 AM

Most the logs are a bit short. Map 1 on 93.4 looks normal, timing is a bit low but that can be due to adaptions, conditions, fuel, or dme intervention (traction)

Best to do a few good runs in 3rd or 4th gear from 2k to 6500 at WOT and then submit a log. Make sure traction control is off but no need to completely defeat it or if you do, be careful.



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Default 09-14-2017, 11:49 AM

Thank you for the feedback. I disabled traction control completely and made a couple of longer logs for review. The 4th gear log is cut a bit short but shows it pulling timing twice so I thought I would include it. Please let me know if you have any suggestions or if it looks good as is. Also, would disconnecting the wastegate connections help? Thank you again for your help.
Attached Files
File Type: csv map1_93Oct_3rd_Gear.csv (6.0 KB, 5 views)
File Type: csv map1_93Oct_4thGear.csv (9.1 KB, 6 views)
File Type: csv map1_93Oct_3rdAnd4thGear.csv (9.9 KB, 4 views)
File Type: csv map0_93Oct_3rdGear.csv (6.7 KB, 5 views)
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Default 09-15-2017, 10:57 AM

EWG wires aren't used for additive maps.

Logs look pretty normal. IAT's are a bit high so that affects timing.



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Default 09-16-2017, 12:29 AM

Thank you for the help Steve. Added more pump gas today and noticed a huge difference!
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Default 09-17-2017, 03:28 PM




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