[LA1Z24]

I installed BM3 stage 1 93 on my 4 day old 435i. Works great, love it. I noticed a couple knocks detected, and an associated timing pull in a few cylinders. This was with a fill up of Shell V Power 93, on Long Island NY. Aside from BM3 stage 1, the car is stock, for now. N55 engine with EWG. I did install the colder step NGK spark plugs as well, gapped to .022

What do you guys think? Anything to worry about?

https://www.bootmod3.net/log?id=5f82...729b53afaf920e

[chinniciF32]

im sure "thejeremyman" will give you a good analysis, I know he posted a good guide on how to decipher logs and what they mean.

[LA1Z24]

Originally Posted by chinniciF32

im sure "thejeremyman" will give you a good analysis, I know he posted a good guide on how to decipher logs and what they mean.

Thanks for the tip. I will search for his thread!

For anyone else curious, it is here

[TK335iMSPT]

Ok just to start, thejeremyman9 is the OG BOSS when it comes to logs. I've been getting better at interpreting logs but still miss things here and there. Typically when taking a log, you will choose either 3rd or 4th gear and do a WOT (pedal all the way down for the whole pull) pull from 2k ish RPM's to anywhere from 5.5k to 6.5k RPM. Some people let off immediately and others choose to shift up to the next gear and let off immediately after that. Some logs I shift and others I don't. Looking at your log, it doesn't appear that you went WOT at any point and your RPM's/Pedal percentage fluctuated along through several gear shifts. I see 4 knocks throughout this log. Two knocks in 3rd gear at 2721 RPM & 3691 RPM, then one knock in 4th gear at 5147 RPM, and then one knock in 5th gear at 4762 RPM. I see you are running the Stage 1 93oct OTS map as well. Myself and many others in the NJ/NY area are currently dealing with horrible gas situations that are causing timing pulls and knocks. I have been data logging my car and comparing between 3 other similar mileage/moded N55's and we are all experiencing the same inconsistent timing and knocks, even on the Stage 1 91oct ACN map. I have a ticket in with PTF customer support about the issue but I am awaiting a solution. I would suggest to go down to at least the Stage 1 91oct map and re log with the steps I stated above. That will allow us to get a better view of what's going on.

2014 335i Xdrive Stock Tune 60k miles
VRSF 5inch HD intercooler
VRSF Charge Pipe
OEM Plugs/Coils gapped to .030 with 6k miles on them
AFE Pro dry drop in air filter

For data and learning purposes, here are my most recent logs of my Stage 1 91oc ACN flash. All logs were taken using 93octane gas.

https://www.bootmod3.net/log?id=5f87...729b488dc3d6d9

https://www.bootmod3.net/log?id=5f87...90c63d0074eb42

https://www.bootmod3.net/log?id=5f87...729b488dc3d70d

https://www.bootmod3.net/log?id=5f87...90c63d910a457e

https://www.bootmod3.net/log?id=5f87...729b491220f7b5


Here are a few logs running the Stage 1 93oct Map using 93octane fuel.

https://www.bootmod3.net/log?id=5f81...729b53afaf8d97

https://www.bootmod3.net/log?id=5f81...729b532dd1a48e

https://www.bootmod3.net/log?id=5f81...90c66c1601b10b

[LA1Z24]

Originally Posted by TK335iMSPT

Ok just to start, thejeremyman9 is the OG BOSS when it comes to logs. I've been getting better at interpreting logs but still miss things here and there. Typically when taking a log, you will choose either 3rd or 4th gear and do a WOT (pedal all the way down for the whole pull) pull from 2k ish RPM's to anywhere from 5.5k to 6.5k RPM. Some people let off immediately and others choose to shift up to the next gear and let off immediately after that. Some logs I shift and others I don't. Looking at your log, it doesn't appear that you went WOT at any point and your RPM's/Pedal percentage fluctuated along through several gear shifts. I see 4 knocks throughout this log. Two knocks in 3rd gear at 2721 RPM & 3691 RPM, then one knock in 4th gear at 5147 RPM, and then one knock in 5th gear at 4762 RPM. I see you are running the Stage 1 93oct OTS map as well. Myself and many others in the NJ/NY area are currently dealing with horrible gas situations that are causing timing pulls and knocks. I have been data logging my car and comparing between 3 other similar mileage/moded N55's and we are all experiencing the same inconsistent timing and knocks, even on the Stage 1 91oct ACN map. I have a ticket in with PTF customer support about the issue but I am awaiting a solution. I would suggest to go down to at least the Stage 1 91oct map and re log with the steps I stated above. That will allow us to get a better view of what's going on.

2014 335i Xdrive Stock Tune 60k miles
VRSF 5inch HD intercooler
VRSF Charge Pipe
OEM Plugs/Coils gapped to .030 with 6k miles on them
AFE Pro dry drop in air filter

For data and learning purposes, here are my most recent logs of my Stage 1 91oc ACN flash. All logs were taken using 93octane gas.

https://www.bootmod3.net/log?id=5f87...729b488dc3d6d9

https://www.bootmod3.net/log?id=5f87...90c63d0074eb42

https://www.bootmod3.net/log?id=5f87...729b488dc3d70d

https://www.bootmod3.net/log?id=5f87...90c63d910a457e

https://www.bootmod3.net/log?id=5f87...729b491220f7b5


Here are a few logs running the Stage 1 93oct Map using 93octane fuel.

https://www.bootmod3.net/log?id=5f81...729b53afaf8d97

https://www.bootmod3.net/log?id=5f81...729b532dd1a48e

https://www.bootmod3.net/log?id=5f81...90c66c1601b10b

Thanks for taking the time to type that all. So you agree it is probably a fuel issue? I do not see anything else in the log that coincides with the knocks, so that was my theory. Fuel.

Have you found any brands of fuel better than another? I have multiple 93 stations in my area. I will give them a try. I also have some other datalogs that show no knocks at all.

[TK335iMSPT]

In short, yes fuel quality in our area is definitely an issue. I ran some tests with a mix of 93 octane and 100 octane running the Stage 1 93oct map. The results were great and showed a significant positive change in timing and eliminated all knocks. The problem is there's only one station with 100 octane near me and its 20 bucks a gallon. Adding E85 is also a solution for some but I do not have easy access to it in my area. People also suggest octane booster but that is not a viable long term solution because it is expensive and will foul spark plugs faster.

[thejeremyman9]

Thanks for the shoutouts guys lol

Originally Posted by LA1Z24

I installed BM3 stage 1 93 on my 4 day old 435i. Works great, love it. I noticed a couple knocks detected, and an associated timing pull in a few cylinders. This was with a fill up of Shell V Power 93, on Long Island NY. Aside from BM3 stage 1, the car is stock, for now. N55 engine with EWG. I did install the colder step NGK spark plugs as well, gapped to .022

What do you guys think? Anything to worry about?

https://www.bootmod3.net/log?id=5f82...729b53afaf920e

I took a look through. TK335iMSPT has a nice summary and review. As he mentioned, you didn't collect this log with the typical procedure. You need to be WOT (100% throttle) for the duration of the pull, and you need to floor it quickly and not gently roll into throttle over time. I provide more info on how to collect a log in my datalogging thread you have found. Ideally, you collect 2 or 3 logs (i would recommend 3 in this case) of 4th gear pulls so that you have a sufficient sample size to draw conclusions. Also of note is if you just recently flashed the tune, there could be an adaptation period, so drive say, 50 miles before logging if possible. Did you take this log right after flashing?

In terms of the log itself, the thing i would add is that your IATs are pretty high which are another factor in getting knocks and having timing pulled. Your timing wasnt too bad in 3rd, but it got much worse in the higher gears. It does suggest a fuel quality issue, but IATs can be another factor. To control for that variable you could try you next set of logs on the same tank of gas at night when ambient temps are lower. But in general, its not uncommon for people to run the 91 map with pump 93. We are also past the time when most gas stations switch to winter blend, which is usually a little worse.

The boost control is excellent but that's to be expected since you havent opened up your IC+CP system yet (so less potential for boost leaks). Nothing else really jumps out, fuel trims and whatnot look OK.

Collect some more logs, ideally those 4th gear pulls, and report back. It doesnt hurt to get a 1-4 log from a dig if you can as well. You dont need to use LC, just floor it from a dead stop (DSC fully off) and go to the top of 4th if you can. You only need 1 of those.

[dalderks]

Originally Posted by TK335iMSPT

Ok just to start, thejeremyman9 is the OG BOSS when it comes to logs. I've been getting better at interpreting logs but still miss things here and there. Typically when taking a log, you will choose either 3rd or 4th gear and do a WOT (pedal all the way down for the whole pull) pull from 2k ish RPM's to anywhere from 5.5k to 6.5k RPM. Some people let off immediately and others choose to shift up to the next gear and let off immediately after that. Some logs I shift and others I don't. Looking at your log, it doesn't appear that you went WOT at any point and your RPM's/Pedal percentage fluctuated along through several gear shifts. I see 4 knocks throughout this log. Two knocks in 3rd gear at 2721 RPM & 3691 RPM, then one knock in 4th gear at 5147 RPM, and then one knock in 5th gear at 4762 RPM. I see you are running the Stage 1 93oct OTS map as well. Myself and many others in the NJ/NY area are currently dealing with horrible gas situations that are causing timing pulls and knocks. I have been data logging my car and comparing between 3 other similar mileage/moded N55's and we are all experiencing the same inconsistent timing and knocks, even on the Stage 1 91oct ACN map. I have a ticket in with PTF customer support about the issue but I am awaiting a solution. I would suggest to go down to at least the Stage 1 91oct map and re log with the steps I stated above. That will allow us to get a better view of what's going on.

2014 335i Xdrive Stock Tune 60k miles
VRSF 5inch HD intercooler
VRSF Charge Pipe
OEM Plugs/Coils gapped to .030 with 6k miles on them
AFE Pro dry drop in air filter

For data and learning purposes, here are my most recent logs of my Stage 1 91oc ACN flash. All logs were taken using 93octane gas.

https://www.bootmod3.net/log?id=5f87...729b488dc3d6d9

https://www.bootmod3.net/log?id=5f87...90c63d0074eb42

https://www.bootmod3.net/log?id=5f87...729b488dc3d70d

https://www.bootmod3.net/log?id=5f87...90c63d910a457e

https://www.bootmod3.net/log?id=5f87...729b491220f7b5


Here are a few logs running the Stage 1 93oct Map using 93octane fuel.

https://www.bootmod3.net/log?id=5f81...729b53afaf8d97

https://www.bootmod3.net/log?id=5f81...729b532dd1a48e

https://www.bootmod3.net/log?id=5f81...90c66c1601b10b

Thanks for posting these logs. It does not seem like a lot of members are running stage 1, and you just helped confirmed something that I've probably spent too much time obsessing over. Also, sorry ahead of time for being a bit off topic....

Has anyone else noticed the WGDC goes nuts at the end of the stage 1 logs (above ~5,800k)? It happens in almost ever log you posted, and I'm seeing it in mine as well. I took a screenshot and circled it in the picture for reference. I didn't like that so I rolled back to V6.4 (after not liking the overboost on the M2 tune). I'm hoping thejeremyman9 will have some input/feedback/knowledge.

[thejeremyman9]

Originally Posted by dalderks

Thanks for posting these logs. It does not seem like a lot of members are running stage 1, and you just helped confirmed something that I've probably spent too much time obsessing over. Also, sorry ahead of time for being a bit off topic....

Has anyone else noticed the WGDC goes nuts at the end of the stage 1 logs (above ~5,800k)? It happens in almost ever log you posted, and I'm seeing it in mine as well. I took a screenshot and circled it in the picture for reference. I didn't like that so I rolled back to V6.4 (after not liking the overboost on the M2 tune). I'm hoping thejeremyman9 will have some input/feedback/knowledge.

Yeah i remember seeing that erratic WGDC up top in the stage 1 logs as well, so it's not isolated to you. Did you not see it in v6.4? I think we've concluded its an artifact of the tune given it happens across multiple people's cars. You can always email PTF support and see what they say.

Another piece of general advice - logging is great and all (and i highly recommend it), but try not to obsess over getting a 'perfect' log. There's always going to be things you can nitpick - timing isnt perfect, you have a knock here or there, you got a throttle closure, etc, but its easy to log yourself to death and it can take away from actually enjoying the car. Been there done that lol, i used to be especially obsessed with getting perfect timing (after i dealt with quite a few boost leak issues). Once you confirm you dont have issues (like a boost leak, major fuel quality or timing/knock issues, etc), try not to stress about having everything be perfect because there's always going to be some variability from time to time. Don't forget to enjoy the car

[dalderks]

Originally Posted by thejeremyman9

Yeah i remember seeing that erratic WGDC up top in the stage 1 logs as well, so it's not isolated to you. Did you not see it in v6.4? I think we've concluded its an artifact of the tune given it happens across multiple people's cars. You can always email PTF support and see what they say.

Another piece of general advice - logging is great and all (and i highly recommend it), but try not to obsess over getting a 'perfect' log. There's always going to be things you can nitpick - timing isnt perfect, you have a knock here or there, you got a throttle closure, etc, but its easy to log yourself to death and it can take away from actually enjoying the car. Been there done that lol, i used to be especially obsessed with getting perfect timing (after i dealt with quite a few boost leak issues). Once you confirm you dont have issues (like a boost leak, major fuel quality or timing/knock issues, etc), try not to stress about having everything be perfect because there's always going to be some variability from time to time. Don't forget to enjoy the car

Thanks for the input, Jeremy! I haven't seen it so far on v6.4, but I've struggled to get full pulls recently due to traffic and rain. I'll post a couple after some more testing. It seems odd to me given that the boost level stays relatively constant, so I would expect the WG to be fairly constant (adjusting for engine speed). Maybe it's not a big deal - it just seems bad for the waste gate. As a side note, I'm seeing the same behavior on the new stage 2+ maps, but that might be unrelated.

[LA1Z24]

Well 2 days ago I filled up with 93 and the car had a noticeable stutter building boost. So this morning I woke up with the intent on finding some race gas at the pump. Today, about 5 miles from home I found Sunoco 260 GT at the pump. $9.49 a gallon. So I topped off with about 7 gallons, reset adaptions right there at the pump, and drove off. About 25 miles later, with about 97 octane in the tank, here is the log.

https://www.bootmod3.net/log?id=5f8d...90c61319f105fe

Absolutely zero knocks. I do see a throttle closure early on in the run, and it appears to coincide with a small overboost condition. Is my analysis correct?

Also, is the logged IAT the sensor that is part of the MAF assembly, or is there another sensor futher downstream to monitor intercooler efficiency?

[thejeremyman9]

Originally Posted by LA1Z24

Well 2 days ago I filled up with 93 and the car had a noticeable stutter building boost. So this morning I woke up with the intent on finding some race gas at the pump. Today, about 5 miles from home I found Sunoco 260 GT at the pump. $9.49 a gallon. So I topped off with about 7 gallons, reset adaptions right there at the pump, and drove off. About 25 miles later, with about 97 octane in the tank, here is the log.

https://www.bootmod3.net/log?id=5f8d...90c61319f105fe

Absolutely zero knocks. I do see a throttle closure early on in the run, and it appears to coincide with a small overboost condition. Is my analysis correct?

Also, is the logged IAT the sensor that is part of the MAF assembly, or is there another sensor futher downstream to monitor intercooler efficiency?

Indeed it looks better but still some timing corrections. Nothing bad, but a little surprising if your octane is indeed that high. I would attribute this to your IATs, which rose to a massive 130F+ by the end of the pull, which is why i always recommend an IC even for stage 1 cars. But i think you have demonstrated that fuel quality improved your situation. IATs are after the IC. You are seeing a huge rise because stock IC cannot keep up.

And yes, the early throttle closure appears to be from overboost.

[dalderks]

Originally Posted by LA1Z24

Well 2 days ago I filled up with 93 and the car had a noticeable stutter building boost. So this morning I woke up with the intent on finding some race gas at the pump. Today, about 5 miles from home I found Sunoco 260 GT at the pump. $9.49 a gallon. So I topped off with about 7 gallons, reset adaptions right there at the pump, and drove off. About 25 miles later, with about 97 octane in the tank, here is the log.

https://www.bootmod3.net/log?id=5f8d...90c61319f105fe

Absolutely zero knocks. I do see a throttle closure early on in the run, and it appears to coincide with a small overboost condition. Is my analysis correct?

Also, is the logged IAT the sensor that is part of the MAF assembly, or is there another sensor futher downstream to monitor intercooler efficiency?

It looks like the HPFP took a dive. You're running V7.1, correct?

[thejeremyman9]

Originally Posted by dalderks

It looks like the HPFP took a dive. You're running V7.1, correct?

Good catch, i didnt see that because i was looking at timing and related parameters. Its typical to see a small dip on shift but not that much.

It's strange because hes not running any ethanol and is only on stage 1? Unless that sunoco 260 has a bunch of ethanol in it?

[LA1Z24]

To be clear, the car had just over half a tank of bootleg 93 in it, which def was at least e10. I then filled the tank with the Sunoco 100. Online octane mix calculators say I should be right around 95 octane in the tank. I mistakenly said 97 earlier. I actually picked up a Dinan CF intake, and a near mint Evolution Raceworks IC this weekend for $400 local. I will take it to work tomorrow and flush it out. I was going to wait to install it till I get my charge pipes, but work is boring!

I am running v7.1. I have zero issues running this tank dry and doing a full tank of 100. For science. Maybe PTF would like to make an OTS for it

I was reading on the Sunoco site, which I can no longer find, that it stated because the fuel was oxygenated, that comsumption would go up. Seems fishy, but they said it, I'm sure of it.

The IAT that is used after the intercooler...Where is it located?

[thejeremyman9]

Originally Posted by LA1Z24

To be clear, the car had just over half a tank of bootleg 93 in it, which def was at least e10. I then filled the tank with the Sunoco 100. Online octane mix calculators say I should be right around 95 octane in the tank. I mistakenly said 97 earlier. I actually picked up a Dinan CF intake, and a near mint Evolution Raceworks IC this weekend for $400 local. I will take it to work tomorrow and flush it out. I was going to wait to install it till I get my charge pipes, but work is boring!

I am running v7.1. I have zero issues running this tank dry and doing a full tank of 100. For science. Maybe PTF would like to make an OTS for it

I was reading on the Sunoco site, which I can no longer find, that it stated because the fuel was oxygenated, that comsumption would go up. Seems fishy, but they said it, I'm sure of it.

The IAT that is used after the intercooler...Where is it located?

Very interested to see how the dinan intake affects your MAF readings running BM3. Capture a log before and after that install with nothing else changed if you can. See my intake review thread (and link to dinan intake thread) for more info.

Back to your logs, you don't even need a full tank of 100, just need to run current one as low as possible before going 5-10 gal of the 100. (I thought BM3 already had a race gas map but i would stick to your current map for this testing).

As far as the fueling goes the other thing worth nothing is that your STFTs are fairly negative, around -11 to -13% throughout the pull. If you needed more fuel than the DME expected, the opposite would be true. If you look back at the other stage 1 example logs posted in this thread, STFTs are basically around zero (aka around 1 in BM3), or very slightly positive. So your STFTs seem to run contrary to what would happen with any fuel that requires more supply to maintain AFR targets, be it the 260 or higher ethanol. This also doesn't make a ton of sense when you simultaneously have a HPFP crash, unless the HPFP crash is from an actual fuel supply issue. I looked back and did not see a HPFP dip in your original log aside from the normal dip on shift. This would lead me to assume its from the 260 you added, unless a hardware or other problem surfaced in the time between those logs.

I would capture a 4th gear pull (or 2 or 3) log with your current tank and re-assess the situation and decide where you want to go from there. Perhaps getting these 3 logs before doing any mods is best so as to have a complete baseline dataset before you start introducing other variables with the intake, IC, or full tank of 260 fuel.

EDIT: the IAT sensor is part of the MAP on the intake manifold.

[LA1Z24]

Originally Posted by thejeremyman9

Very interested to see how the dinan intake affects your MAF readings running BM3. Capture a log before and after that install with nothing else changed if you can. See my intake review thread (and link to dinan intake thread) for more info.

Back to your logs, you don't even need a full tank of 100, just need to run current one as low as possible before going 5-10 gal of the 100. (I thought BM3 already had a race gas map but i would stick to your current map for this testing).

As far as the fueling goes the other thing worth nothing is that your STFTs are fairly negative, around -11 to -13% throughout the pull. If you needed more fuel than the DME expected, the opposite would be true. If you look back at the other stage 1 example logs posted in this thread, STFTs are basically around zero (aka around 1 in BM3), or very slightly positive. So your STFTs seem to run contrary to what would happen with any fuel that requires more supply to maintain AFR targets, be it the 260 or higher ethanol. This also doesn't make a ton of sense when you simultaneously have a HPFP crash, unless the HPFP crash is from an actual fuel supply issue. I looked back and did not see a HPFP dip in your original log aside from the normal dip on shift. This would lead me to assume its from the 260 you added, unless a hardware or other problem surfaced in the time between those logs.

I would capture a 4th gear pull (or 2 or 3) log with your current tank and re-assess the situation and decide where you want to go from there. Perhaps getting these 3 logs before doing any mods is best so as to have a complete baseline dataset before you start introducing other variables with the intake, IC, or full tank of 260 fuel.

EDIT: the IAT sensor is part of the MAP on the intake manifold.

This log was using the Dinan intake. Failed to mention that. Wednesday evening my buddy is going to give me a hand. We will do logs with and without the Dinan, on mostly 100 octane. I have seen your thread, and was teetering on purchasing this intake because of your thread.

I am an auto tech that specializes in diagnostics. I have my theory about fuel trims and this intake. Turbulance. With the flat stock filter, the entire top of the airbox works to smooth the airflow past the sensor. The Dinan does not. The air comes into the filter and collides with other air entering. The turbulence causes false readings. This is a fairly common fault on some GM vehicles with aftermarket intakes. Mystery lean codes. One of the other filters tested had that really trick cast aluminum housing specifically made to house the MAF. I am sure that housing is designed to smooth the air for accurate MAF readings. No other reason they'd go to the lengths to make that housing, rather than just mold it into the filter holder like the Dinan. I bet if someone had the nuts to cut the Dinan between the MAF and filter housing, and did testing by clocking the MAF in different locations, we would see some change in the fuel trims.

I will do more logs on Wednesday night, and post everything in this thread. If you have any other specific logs feel free to let me know before Wednesday and we'll be sure to pull them off for you. The intercooler will most likely be installed by then as well though :-/

[thejeremyman9]

Originally Posted by LA1Z24

This log was using the Dinan intake. Failed to mention that. Wednesday evening my buddy is going to give me a hand. We will do logs with and without the Dinan, on mostly 100 octane. I have seen your thread, and was teetering on purchasing this intake because of your thread.

I am an auto tech that specializes in diagnostics. I have my theory about fuel trims and this intake. Turbulance. With the flat stock filter, the entire top of the airbox works to smooth the airflow past the sensor. The Dinan does not. The air comes into the filter and collides with other air entering. The turbulence causes false readings. This is a fairly common fault on some GM vehicles with aftermarket intakes. Mystery lean codes. One of the other filters tested had that really trick cast aluminum housing specifically made to house the MAF. I am sure that housing is designed to smooth the air for accurate MAF readings. No other reason they'd go to the lengths to make that housing, rather than just mold it into the filter holder like the Dinan. I bet if someone had the nuts to cut the Dinan between the MAF and filter housing, and did testing by clocking the MAF in different locations, we would see some change in the fuel trims.

I will do more logs on Wednesday night, and post everything in this thread. If you have any other specific logs feel free to let me know before Wednesday and we'll be sure to pull them off for you. The intercooler will most likely be installed by then as well though :-/

Well at a glance it does look like MAF values in your new log are lower and more erratic than those in your OP log. Could be from the Dinan if that was the only thing changed between them aside from the fuel. I do think the turbulence is a factor, especially since the OEM intake has that 'mouth' on it that in theory should straighten out the intake air streamlines. It's just odd i didnt see the behavior that everyone with BM3+Dinan sees when i tested it with MHD. I also think that turbulence (and location of MAF/design of MAF housing) is one possible explanation for the odd LTFT and STFT behavior i saw with Dinan compared to the other 2 intakes i tested.

Anyways, at this point just install everything you plan to then and get your new logs. That will be the new starting point to assess the logs and see if there are any issues.

[LA1Z24]

Just got back from making a bunch of logs. Car is set up as follows, 97506 plugs gapped to .022, catless DP, Evolution Raceworks IC, Dinan intake, Bootmod3 Stage 1 93 oct, and it has about 96 octane in it today. I added 4 gallons of cam 2, and 4 of 93.

https://www.bootmod3.net/log?id=5f90...729b63c9d36c3f
https://www.bootmod3.net/log?id=5f90...0b436664251722
https://www.bootmod3.net/log?id=5f90...729b63c9d36c41
https://www.bootmod3.net/log?id=5f90...90c62a169fae37

These next ones are using the factory intake.

https://www.bootmod3.net/log?id=5f90...0b4366e9e18ebc
https://www.bootmod3.net/log?id=5f90...729b644c003474
https://www.bootmod3.net/log?id=5f90...729b644c003475
https://www.bootmod3.net/log?id=5f90...90c62aaaf73381
https://www.bootmod3.net/log?id=5f90...90c62aaaf73384

All these runs were done on the same tank of gas, within 45 minutes from the first to the last. The Dinan threw a code today, 101F01. There seems to be some discrepancy as to its definition. Bootmod3 says this code means there is a throttle valve angle to manifold pressure correlation error. bmw.faults says that definition is only for N54 engines, and the N55 definition has to do with inplausable air mass. Hmmmm

[thejeremyman9]

Originally Posted by LA1Z24

Just got back from making a bunch of logs. Car is set up as follows, 97506 plugs gapped to .022, catless DP, Evolution Raceworks IC, Dinan intake, Bootmod3 Stage 1 93 oct, and it has about 96 octane in it today. I added 4 gallons of cam 2, and 4 of 93.

https://www.bootmod3.net/log?id=5f90...729b63c9d36c3f
https://www.bootmod3.net/log?id=5f90...0b436664251722
https://www.bootmod3.net/log?id=5f90...729b63c9d36c41
https://www.bootmod3.net/log?id=5f90...90c62a169fae37

These next ones are using the factory intake.

https://www.bootmod3.net/log?id=5f90...0b4366e9e18ebc
https://www.bootmod3.net/log?id=5f90...729b644c003474
https://www.bootmod3.net/log?id=5f90...729b644c003475
https://www.bootmod3.net/log?id=5f90...90c62aaaf73381
https://www.bootmod3.net/log?id=5f90...90c62aaaf73384

All these runs were done on the same tank of gas, within 45 minutes from the first to the last. The Dinan threw a code today, 101F01. There seems to be some discrepancy as to its definition. Bootmod3 says this code means there is a throttle valve angle to manifold pressure correlation error. bmw.faults says that definition is only for N54 engines, and the N55 definition has to do with inplausable air mass. Hmmmm

I took a quick skim through (not in detail) and timing looks much better as expected. There was however some pretty substantial HPFP crashes in some of the logs. Seems odd for stage 1 with no extra ethanol. At the same time STFTs are also still pretty negative, more than -10% typically, more so with Dinan it seems. Oh, and your IATs are WAY more under control with the IC, no more +30F rise.

Curious, are you running dinan with MPPK bottom or the stock closed intake bottom?

Also, why do you keep doing these multi gear pulls and not a 'standard' 4th gear pull log? The multi gear pulls as nice, but some 4th gear pulls also provide useful info.

[R1d3r]

Hi guys,

Can I use this topic to share my experience as well?
Im running Stage 2 BM3
N55 EWG
I have installed downpipe, Cp, inlet pipe, gfb diverter and 5' FMIC
I'm logging from time to time and on the last night log I saw a knock and I'm a little bit worried.
https://www.bootmod3.net/log?id=5f90...0b436664251676 knock in 4 gear at 5620 rpm.

[thejeremyman9]

Originally Posted by R1d3r

Hi guys,

Can I use this topic to share my experience as well?
Im running Stage 2 BM3
N55 EWG
I have installed downpipe, Cp, inlet pipe, gfb diverter and 5' FMIC
I'm logging from time to time and on the last night log I saw a knock and I'm a little bit worried.
https://www.bootmod3.net/log?id=5f90...0b436664251676 knock in 4 gear at 5620 rpm.

You only had one knock and it was right on a gear change so i wouldnt worry about it, especially since timing looks great overall.

You did have some strange boost control and WGDC in 4th gear though... very erratic and 'wavy'. Looks like you are at altitude (low ambient pressure), which could be a factor. I would get a 4th gear log or two and see if that happens again.