How do my logs look? Stage1 Multimap

[OCSPEED]

Hey Guys,

Decided to take a couple 4th gear logs of my car. Current file flashed is the BM3 Stage 1 Multimap with the ACN91 (Map 1). Car Currently has ~E65 fuel. Tried a 3rd gear but car breaks traction down low from the TQ.

Mods on the car: VTT CH, BMC Filters, Catless DP, Charge Pipes, Single Mid Pipe, NGK @ .022

How does everything look? The road wasn't smooth (some bumps), but straight and level. From what I could tell, it all looks OK but these are also my first logs with my first F80.

Any input would be appreciated.

https://www.bootmod3.net/log?id=6395...729bfbe96aeed1

https://www.bootmod3.net/log?id=6395...0b43fd9f024043

Thank you in advance!

[davyent]

Originally Posted by OCSPEED

Hey Guys,

Decided to take a couple 4th gear logs of my car. Current file flashed is the BM3 Stage 1 Multimap with the ACN91 (Map 1). Car Currently has ~E65 fuel. Tried a 3rd gear but car breaks traction down low from the TQ.

Mods on the car: VTT CH, BMC Filters, Catless DP, Charge Pipes, Single Mid Pipe, NGK @ .022

How does everything look? The road wasn't smooth (some bumps), but straight and level. From what I could tell, it all looks OK but these are also my first logs with my first F80.

Any input would be appreciated.

https://www.bootmod3.net/log?id=6395749aae729bfbe96aeed1

https://www.bootmod3.net/log?id=6395749ed10b43fd9f024043

Thank you in advance!

Everything looks perfect from my end.

[M2_MEDUSA]

bad

[mike@x-ph.com]

in the second log, you have a knock detected

[M2_MEDUSA]

Originally Posted by mike@x-ph.com

in the second log, you have a knock detected

Good catch, I didnt open the second log cus the first looked good, You think its because of fuel?

[OCSPEED]

Originally Posted by mike@x-ph.com

in the second log, you have a knock detected

Fuel age wise I filled up on Thursday night.

Not sure if the knock was detected due to the bumpy road since I see it pick back up after the knock detection?

BM3 told me to run at .022 with the NGKs and that I should be fine. Not sure what others have had success with on the multi map. I see some people sit between the .018 to .020 range, but not sure if it would be worth going down in my case or even make a difference.

Just wanted to make sure everything looked good before I keep doing pulls since I like to roll race

Car usually sits between E45 to E65 so far. I could put more E85 in since I mixed in about 3 gallons of 91 last fill up since this was only my second fill-up on the multi map. Also not sure what are your guys’ thoughts on the HPFP and if its keeping up

[M2_MEDUSA]

Originally Posted by OCSPEED

Fuel age wise I filled up on Thursday night.

Not sure if the knock was detected due to the bumpy road since I see it pick back up after the knock detection?

BM3 told me to run at .022 with the NGKs and that I should be fine. Not sure what others have had success with on the multi map. I see some people sit between the .018 to .020 range, but not sure if it would be worth going down in my case or even make a difference.

Just wanted to make sure everything looked good before I keep doing pulls since I like to roll race

Car usually sits between E45 to E65 so far. I could put more E85 in since I mixed in about 3 gallons of 91 last fill up since this was only my second fill-up on the multi map. Also not sure what are your guys’ thoughts on the HPFP and if its keeping up

Why do you have E65 in the car on a 91 tune? There is your issue

[OCSPEED]

Originally Posted by M2_MEDUSA

Why do you have E65 in the car on a 91 tune? There is your issue

I am on the FlexFuel MultiMap from BM3 paired with the BM3 sensor on the low pressure pump.

[hellokitty]

Originally Posted by OCSPEED

I am on the FlexFuel MultiMap from BM3 paired with the BM3 sensor on the low pressure pump.

You’ll want to use the BMW/NGK flex fuel plugs if running on ethanol mixes. Not NGK 97506.

[OCSPEED]

Originally Posted by hellokitty

You’ll want to use the BMW/NGK flex fuel plugs if running on ethanol mixes. Not NGK 97506.

I presume it’s these? https://www.fcpeuro.com/products/bmw...EaAnjpEALw_wcB

Stick with .022 gap?

Edit: I linked the wrong ones. I now see from searching around that its the SILZKBR8F8S

[hellokitty]

Originally Posted by OCSPEED

I presume it’s these? https://www.fcpeuro.com/products/bmw...EaAnjpEALw_wcB

Stick with .022 gap?

Edit: I linked the wrong ones. I now see from searching around that its the SILZKBR8F8S

F8S @ .020 is what I run on flex fuel

[davyent]

Originally Posted by M2_MEDUSA

Good catch, I didnt open the second log cus the first looked good, You think its because of fuel?

I only reviewed the first log as well

[OCSPEED]

I went ahead and swapped out the plugs to the F8S and gapped @ .020

I tried doing 4th gear pulls from around 3k but it seems like the clutch (manual) is slipping down low. One log I did a 3rd gear pull and then got on it in 4th afterwards.

I see knock detections and in general timing drops across the board it looks like. Fuel is E65~ and last filled up on Thursday the 15th.

Is it normal for these cars to have timing drops? I also see the knock detection happens when getting on the throttle. I see cyl 4 consistently having these drops followed by 1 and 6 as well.

Any advice would be appreciated

https://www.bootmod3.net/log?id=63a1...90c673996018f6

https://www.bootmod3.net/log?id=63a1...729b705e3a592a

https://www.bootmod3.net/log?id=63a1...729b705e3a592c

[hellokitty]

Originally Posted by OCSPEED

I went ahead and swapped out the plugs to the F8S and gapped @ .020

I tried doing 4th gear pulls from around 3k but it seems like the clutch (manual) is slipping down low. One log I did a 3rd gear pull and then got on it in 4th afterwards.

I see knock detections and in general timing drops across the board it looks like. Fuel is E65~ and last filled up on Thursday the 15th.

Is it normal for these cars to have timing drops? I also see the knock detection happens when getting on the throttle. I see cyl 4 consistently having these drops followed by 1 and 6 as well.

Any advice would be appreciated

https://www.bootmod3.net/log?id=63a14368c090c673996018f6

https://www.bootmod3.net/log?id=63a1449fae729b705e3a592a

https://www.bootmod3.net/log?id=63a1462aae729b705e3a592c

How many miles since you last replaced the ignition coils?

Maybe move coil 2 to coil 4 and see if the corrections follow to cyl 2. If that is the case, then your coil packs likely need to be replaced.

[OCSPEED]

Originally Posted by hellokitty

How many miles since you last replaced the ignition coils?

Maybe move coil 2 to coil 4 and see if the corrections follow to cyl 2. If that is the case, then your coil packs likely need to be replaced.

I got this car in October so I am not sure. When I replaced the spark plugs the first time around a couple weeks ago they were NGK’s and looked new. The coils themselves look new from what I can tell but that’s not saying much. Who knows when they were replaced, if ever.

I have no problem doing new coils all around since I wanted to do this originally when I got the car to have a start fresh for the timing side of things…

OEM coils or is there something out there that is better than OEM? On my N54 when I built the motor I ran Precision Raceworks. Not sure what everyone runs here.

Thanks Kitty

[OCSPEED]

I am also noticing that across the board on all cylinders are down about 3-4 degrees of timing when compared to the logs from weeks ago on the new NGK 97506?

[M3ntal_F80]

Hope you don't mind me asking a couple of questions here. I've got the BM3 Flex Fuel kit, but haven't installed it yet. Not sure if I want to go the flex fuel route.

1) When using the NGK SILZKBR8F8S do they need to be replaced more often or was that just with the NGK 97506 on flex fuel?

2) How will these spark plugs deal with regular 93 octane? Would I be ok running 93 for a while and when I'm feeling saucy, add some E85?

[hellokitty]

Originally Posted by OCSPEED

I got this car in October so I am not sure. When I replaced the spark plugs the first time around a couple weeks ago they were NGK’s and looked new. The coils themselves look new from what I can tell but that’s not saying much. Who knows when they were replaced, if ever.

I have no problem doing new coils all around since I wanted to do this originally when I got the car to have a start fresh for the timing side of things…

OEM coils or is there something out there that is better than OEM? On my N54 when I built the motor I ran Precision Raceworks. Not sure what everyone runs here.

Thanks Kitty

How many miles are on the car? I would swap the two coils around like I suggested earlier to see if the timing drop follows.

I’ve been through N54, N55, S55 now B48 haha. I also ran PR coils on my old N54 when running on E60.

For our cars, the stock coils (Eldor or Delphi) are fine and will handle full E85. You can find them on FCP Euro. Dinan also released their coils for our cars, but not sure if FCP Euro has them. Supposedly the Dinan has 10% better output.

Running on full E85 flex fuel will push the limits on every component you have, so you need to keep spark plugs, coils, injectors in tip top shape hehe

[hellokitty]

Originally Posted by Lj_F80

Hope you don't mind me asking a couple of questions here. I've got the BM3 Flex Fuel kit, but haven't installed it yet. Not sure if I want to go the flex fuel route.

1) When using the NGK SILZKBR8F8S do they need to be replaced more often or was that just with the NGK 97506 on flex fuel?

2) How will these spark plugs deal with regular 93 octane? Would I be ok running 93 for a while and when I'm feeling saucy, add some E85?

F8S plugs will actually last longer compared to 97506 on E85. That’s why people recommend it when using ethanol blends over 97506.

F8S are true flex fuel plugs and can run on either pump gas or ethanol. No downsides.

[OCSPEED]

Originally Posted by hellokitty

How many miles are on the car? I would swap the two coils around like I suggested earlier to see if the timing drop follows.

I’ve been through N54, N55, S55 now B48 haha. I also ran PR coils on my old N54 when running on E60.

For our cars, the stock coils (Eldor or Delphi) are fine and will handle full E85. You can find them on FCP Euro. Dinan also released their coils for our cars, but not sure if FCP Euro has them. Supposedly the Dinan has 10% better output.

Running on full E85 flex fuel will push the limits on every component you have, so you need to keep spark plugs, coils, injectors in tip top shape hehe

53k miles on the car. I will swap those coils around and report back.

Is there anything log wise that would point to weak injectors? I still have to disable cold start but yesterday morning the car died right on start-up and gave me a “Fuel Supply” malfunction. Started it up again and it went away. Sat for 2 days and its been colder at night as you know in socal.

Usually the car starts up and idles perfect for the first 10-15 seconds and then goes into a lopey idle for about 10 seconds and then clears out. Not sure if this is all due to the cold start

[hellokitty]

Originally Posted by OCSPEED

53k miles on the car. I will swap those coils around and report back.

Is there anything log wise that would point to weak injectors? I still have to disable cold start but yesterday morning the car died right on start-up and gave me a “Fuel Supply” malfunction. Started it up again and it went away. Sat for 2 days and its been colder at night as you know in socal.

Usually the car starts up and idles perfect for the first 10-15 seconds and then goes into a lopey idle for about 10 seconds and then clears out. Not sure if this is all due to the cold start

You should disable cold start on full E85 since it causes idling problems like you've experienced. You should also expect to start the car twice since the cold weather makes it harder on the car to start on full E85.

I just looked at your logs at work (having an ultrawide monitor is NICE LOL)...

Looks like you have poor coils. Cyl 6 is the worst, which is also the one closest to the turbo. Typically Cyl 6 goes out first due to the heat. No knock detected.

Your AFRs between bank 1 and 2 appear in-line and consistent so doesn't look like any injector is leaking.

HPFP seems ok, but keep an eye out for it. Look at HPFP Target vs HPFP Actual. The deviation should not be significant there. You look ok HPFP wise.

[OCSPEED]

Originally Posted by hellokitty

You should disable cold start on full E85 since it causes idling problems like you've experienced. You should also expect to start the car twice since the cold weather makes it harder on the car to start on full E85.

I just looked at your logs at work (having an ultrawide monitor is NICE LOL)...

Looks like you have poor coils. Cyl 6 is the worst, which is also the one closest to the turbo. Typically Cyl 6 goes out first due to the heat. No knock detected.

Your AFRs between bank 1 and 2 appear in-line and consistent so doesn't look like any injector is leaking.

HPFP seems ok, but keep an eye out for it. Look at HPFP Target vs HPFP Actual. The deviation should not be significant there. You look ok HPFP wise.

I guess the E85 is showing the weak points on my system lol.

After I responded to you I went outside and disabled cold start. Fixed idling issues 100%. Saw in another thread you mentioned that info, just didn’t get around to flashing it.

Question: When looking at logs, what is the importance with Knock vs timing drops? Like in my case, timing drops across multiple/all cylinders but no knock detected. And vise versa like my OP, no timing drops at all but a “1” registered in knock in the mid range.

Edit: Forgot to ask…Would these F8S plugs also more easily show weak coils when compared to the 97506’s? Crazy to me I went from perfect timing to being down so many degrees all across the board from a spark plug change