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beetle6986 beetle6986 is offline
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Default 08-02-2019, 03:43 PM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
sounds good!
Here is two new logs after changing the bias to zero. The one looks fairly decent I think, but the other one has an odd spike to 15.0 afr around 4,600 rpm. Im not sure what caused that. It seems to have corrected itself pretty quickly. Maybe i should go out of map 7 and then back in to clear any previous learning.

I just added a more recent log with a higher rpm range.
Attached Files
File Type: csv 2019-08-02 17_46_15_Map-7.csv (24.2 KB, 13 views)
File Type: csv 2019-08-02 17_44_07_Map-7.csv (25.4 KB, 12 views)
File Type: csv 2019-08-02 18_56_51_Map-7.csv (26.2 KB, 16 views)


08 335xi - 6MT. JB4 ISO, map7, MHD E85 BEF, E50, DCI, VRSF p1p3s, VRSF FMIC.
04 Cobra - Intake, Borla/Bassani exhaust, FMIC, pulley, tune.

Last edited by beetle6986; 08-02-2019 at 04:32 PM..
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Default 08-02-2019, 08:47 PM

These look improved

Some timing corrections, but I think those will smooth out

Do a lambda reset & if you want grab a clean log



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beetle6986 beetle6986 is offline
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Default 08-30-2019, 07:52 PM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
These look improved

Some timing corrections, but I think those will smooth out

Do a lambda reset & if you want grab a clean log
I did a reset. The car runs great except for the lack of fuel after shifting. Here is a new log from today. After shifting from 2nd to 3rd, the high pressure fuel drops from 13 to 8. Right after that the car goes lean (16 afr) and you can feel the power back off for a second. Then it realizes that it needs more fuel and the high pressure fuel goes right back to 13 and itís fine after that.
Attached Files
File Type: csv 2019-08-30 21_16_35_Map-7.csv (15.1 KB, 13 views)


08 335xi - 6MT. JB4 ISO, map7, MHD E85 BEF, E50, DCI, VRSF p1p3s, VRSF FMIC.
04 Cobra - Intake, Borla/Bassani exhaust, FMIC, pulley, tune.
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Default 09-01-2019, 06:52 AM

How old if your hpfp?



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Default 09-01-2019, 10:07 AM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
How old if your hpfp?
Itís probably original, but is the pump the issue? It appears to be more of a problem with the logic in the tune over correcting for extra fuel pressure right after lifting. Then the demand for fuel quickly rises when I grab the next gear and the fuel system isnít ready for it.

I had the exact same issue in my mustang which has dual 255 lph pumps. It wasnít a fueling issue. They did something in the tune to remedy the issue.


08 335xi - 6MT. JB4 ISO, map7, MHD E85 BEF, E50, DCI, VRSF p1p3s, VRSF FMIC.
04 Cobra - Intake, Borla/Bassani exhaust, FMIC, pulley, tune.
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Default 09-01-2019, 01:04 PM

Quote:
Originally Posted by beetle6986
Itís probably original, but is the pump the issue? It appears to be more of a problem with the logic in the tune over correcting for extra fuel pressure right after lifting. Then the demand for fuel quickly rises when I grab the next gear and the fuel system isnít ready for it.

I had the exact same issue in my mustang which has dual 255 lph pumps. It wasnít a fueling issue. They did something in the tune to remedy the issue.
I see your logic- however majority of our MT owners havenít complained/or brought it to our attention at least..

Do you have NLS?



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Default 09-01-2019, 09:18 PM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
I see your logic- however majority of our MT owners haven’t complained/or brought it to our attention at least..

Do you have NLS?
I didn’t install the NLS yet. Here is another log from today. It was just a second gear pull. The issue seems to happen even here. The fuel pressure drops as boost is rising. The car goes lean and shortly after everything is back to normal ranges. It seems like it’s just a little slow to respond initially. Almost like the fuel pressure needs to increase at lower boost levels in preparation for higher boost levels.
Attached Files
File Type: csv 2019-09-01 15_37_37_Map-7.csv (29.7 KB, 13 views)


08 335xi - 6MT. JB4 ISO, map7, MHD E85 BEF, E50, DCI, VRSF p1p3s, VRSF FMIC.
04 Cobra - Intake, Borla/Bassani exhaust, FMIC, pulley, tune.
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Default 09-02-2019, 12:58 PM

Quote:
Originally Posted by beetle6986
I didnít install the NLS yet. Here is another log from today. It was just a second gear pull. The issue seems to happen even here. The fuel pressure drops as boost is rising. The car goes lean and shortly after everything is back to normal ranges. It seems like itís just a little slow to respond initially. Almost like the fuel pressure needs to increase at lower boost levels in preparation for higher boost levels.
Is this a startup log? I donít see any WOT



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Default 09-02-2019, 06:12 PM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
Is this a startup log? I donít see any WOT
The first record starts full throttle. It only goes from 3600 rpm to 5300, but it is enough to show the scenario.

Separate question, but Should there be a lot more records in the log from 3600 to 5300? Shouldnít there be 10 records a second?


08 335xi - 6MT. JB4 ISO, map7, MHD E85 BEF, E50, DCI, VRSF p1p3s, VRSF FMIC.
04 Cobra - Intake, Borla/Bassani exhaust, FMIC, pulley, tune.
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Default 09-02-2019, 06:49 PM

Quote:
Originally Posted by beetle6986
The first record starts full throttle. It only goes from 3600 rpm to 5300, but it is enough to show the scenario.

Separate question, but Should there be a lot more records in the log from 3600 to 5300? Shouldnít there be 10 records a second?
There should be yes.

Can I see a map with slightly less boost?



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Default 09-02-2019, 08:21 PM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
There should be yes.

Can I see a map with slightly less boost?
Yes. Ill get a log in map 5 tomorrow. Attached is a run from an hour ago in map 7. This one looks great. Boost held strong the entire pull and so did the afr and fuel pressures. This is how the logs look most of the time. Especially if i ease into the throttle as I floor it.
Attached Files
File Type: csv 2019-09-02 22_18_20_Map-7.csv (25.5 KB, 10 views)


08 335xi - 6MT. JB4 ISO, map7, MHD E85 BEF, E50, DCI, VRSF p1p3s, VRSF FMIC.
04 Cobra - Intake, Borla/Bassani exhaust, FMIC, pulley, tune.

Last edited by beetle6986; 09-02-2019 at 08:30 PM..
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Default 09-06-2019, 12:09 PM

Quote:
Originally Posted by beetle6986
Yes. Ill get a log in map 5 tomorrow. Attached is a run from an hour ago in map 7. This one looks great. Boost held strong the entire pull and so did the afr and fuel pressures. This is how the logs look most of the time. Especially if i ease into the throttle as I floor it.

Attached is a log of map 2. The same problem appears to happen occasionally after a shift. Although the boost spiked up to map 7 levels. The fuel pressure dropped extremely low just for a moment. I think it may have felt like a slight misfire right after shifting. This issue seems to happen only under the right circumstances about 20% of the time.

You think I should replace the hpfp? What if I got a stage 2 bucketless?

Just added another example.
Attached Files
File Type: csv 2019-09-06 10_14_37_Map-2.csv (39.2 KB, 13 views)
File Type: csv 2019-09-05 11_08_59_Map-2.csv (22.5 KB, 11 views)


08 335xi - 6MT. JB4 ISO, map7, MHD E85 BEF, E50, DCI, VRSF p1p3s, VRSF FMIC.
04 Cobra - Intake, Borla/Bassani exhaust, FMIC, pulley, tune.

Last edited by beetle6986; 09-06-2019 at 12:32 PM..
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Default 09-06-2019, 01:16 PM

Quote:
Originally Posted by beetle6986
Attached is a log of map 2. The same problem appears to happen occasionally after a shift. Although the boost spiked up to map 7 levels. The fuel pressure dropped extremely low just for a moment. I think it may have felt like a slight misfire right after shifting. This issue seems to happen only under the right circumstances about 20% of the time.

You think I should replace the hpfp? What if I got a stage 2 bucketless?

Just added another example.
Are you running e50 on a stock lpfp?


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Default 09-06-2019, 06:03 PM

Quote:
Originally Posted by Rule77
Are you running e50 on a stock lpfp?
I have a stage 1 inline fuel-it upgrade I did before going to e50. The low pressure values seem to be ok in the logs.


08 335xi - 6MT. JB4 ISO, map7, MHD E85 BEF, E50, DCI, VRSF p1p3s, VRSF FMIC.
04 Cobra - Intake, Borla/Bassani exhaust, FMIC, pulley, tune.
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Default 09-06-2019, 06:29 PM

Quote:
Originally Posted by beetle6986
I have a stage 1 inline fuel-it upgrade I did before going to e50. The low pressure values seem to be ok in the logs.
Agreed with the lpfp values.. did your hpfp dip like this on pump gas?


08 E90 335i
Montego Blue
JB4/MHD E85 BEF
BMS DCI
BMS OCC
BMS Cowl Filters
VRSF ⬇️ Pís
MMP Chargepipe
TIAL BOV
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beetle6986 beetle6986 is offline
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Default 09-08-2019, 09:58 AM

Quote:
Originally Posted by Rule77
Agreed with the lpfp values.. did your hpfp dip like this on pump gas?
I donít recall that it did, but I donít have many logs from that long ago. Attached is one where it seems a bit lean.
Attached Files
File Type: csv 2019-04-05 10_49_55 Map-5.csv (14.9 KB, 8 views)


08 335xi - 6MT. JB4 ISO, map7, MHD E85 BEF, E50, DCI, VRSF p1p3s, VRSF FMIC.
04 Cobra - Intake, Borla/Bassani exhaust, FMIC, pulley, tune.
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Joelkswagen Joelkswagen is offline
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Default 09-08-2019, 12:33 PM

Hey guys, pretty new to the log review thread but I have learned a lot from this thread, so thanks! Few basic questions if you wouldn't mind.

1. On your map 7 logs I notice that average ignition is 0, or almost 0. Is the timing really this perfect or does map 7 handle this value differently than map 5?
2. Why does ecu psi sometimes closley match the target/actual boost, and why sometimes not? I know this has to do with how the JB4 functions, but I don't quite get it.

3. You say that there are some timing corrections, but looking at the avg ign its pretty much 0. What are you looking at when determine timing corrections? Is this the same thing as pulling timing? Do you just mean that the Ign 1 numbers aren't a perfect "bowl shape" dipping and then rising?

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
These look improved

Some timing corrections, but I think those will smooth out

Do a lambda reset & if you want grab a clean log
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Default 09-08-2019, 08:46 PM

Corrections I look at are generally on the individual cylinders



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beetle6986 beetle6986 is offline
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Default 09-11-2019, 10:25 AM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
Corrections I look at are generally on the individual cylinders
Dave,
What would you recommend to resolve the issue? I'm not sure if it is tune related or the pumps are just slow to respond at higher boost levels or what? I wouldn't think fueling would be too much of an issue at my HP levels. People are running a lot more HP than I am on the stock HPFP without issues. I don't know if the inline pump is not enough, if the hpfp can possible get worn and not perform as well, or if it could be tune related (I'm new to the E85 BEF). I definitely want to get the fueling issue resolved.


08 335xi - 6MT. JB4 ISO, map7, MHD E85 BEF, E50, DCI, VRSF p1p3s, VRSF FMIC.
04 Cobra - Intake, Borla/Bassani exhaust, FMIC, pulley, tune.
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Default 09-11-2019, 11:03 AM

depending on age / mileage the HPFP can get tired, especially after long periods / exposure to e85 & really any power level over stock.

Stock turbos, assuming your LPFP is healthy- the inline pump is usually fine tbh.



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Default 09-13-2019, 07:37 PM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
depending on age / mileage the HPFP can get tired, especially after long periods / exposure to e85 & really any power level over stock.

Stock turbos, assuming your LPFP is healthy- the inline pump is usually fine tbh.
The numbers on my lpfp look pretty solid. The hpfp seems to do fine also except for the initial hit or after a shift. I guess I could replace the hlfp.


08 335xi - 6MT. JB4 ISO, map7, MHD E85 BEF, E50, DCI, VRSF p1p3s, VRSF FMIC.
04 Cobra - Intake, Borla/Bassani exhaust, FMIC, pulley, tune.
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Default 09-15-2019, 10:04 AM

Would probably benefit if it’s original



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Default 09-16-2019, 03:20 PM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
Would probably benefit if it’s original
Is there an upgrade for the hpfp or do I just replace with oem?

I installed a vrsf fmic yesterday and did more logs today. Map 7 seems to consistently run leaner than map 2 in the high 4k rpm range. The hpfp values are consistently a little lower with map 7, but still in a good range.


08 335xi - 6MT. JB4 ISO, map7, MHD E85 BEF, E50, DCI, VRSF p1p3s, VRSF FMIC.
04 Cobra - Intake, Borla/Bassani exhaust, FMIC, pulley, tune.
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Default 09-16-2019, 10:08 PM

Quote:
Originally Posted by beetle6986
Is there an upgrade for the hpfp or do I just replace with oem?

I installed a vrsf fmic yesterday and did more logs today. Map 7 seems to consistently run leaner than map 2 in the high 4k rpm range. The hpfp values are consistently a little lower with map 7, but still in a good range.
Most go OEM, although it appears some companies have an upgraded pump. Iím ng overly familiar with them, being new, but if the price points arenít vastly different, might be worth a look.



http://www.fuel-it.biz/

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Default 09-26-2019, 03:44 PM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
Most go OEM, although it appears some companies have an upgraded pump. Iím ng overly familiar with them, being new, but if the price points arenít vastly different, might be worth a look.
A new pump arrived from FCP today. I will probably install it tomorrow or Saturday. Hopefully that resolves my fuel pressure issues. It still seems odd to me that the current pump is able to recover after the pressure drop occurs. It seems more like a timing issue with how the pump is managed. Hopefully it's just because my pump is a bit worn out.


08 335xi - 6MT. JB4 ISO, map7, MHD E85 BEF, E50, DCI, VRSF p1p3s, VRSF FMIC.
04 Cobra - Intake, Borla/Bassani exhaust, FMIC, pulley, tune.
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