[RSL]

I think he's specifically meaning the area where it's back at (almost) full TPS, but continues to decline another 500rpm. Everything is pretty gross there, so thinking simple torque loss vs. car weight issue. Clutch delay valve might not be helping, but I've pulled them out of every MT car I've ever owned with no real night/day difference. BMWs might be different?

MTs have no shortage of shift issues that aren't related to anything physical. Search for shift bog, flat line timing, etc. to get some idea of what's potentially out there...

[tan_rich]

2013 335is DCT
O2 sensor place under warranty about 3 weeks ago
New plugs and eldor coils about 5 weeks ago

Mhd V8.0 Stage 2+ ACN 91
2 gallons e85 and rest 91 about 3 minutes before the pull... lol

BMS downpipes
ER intercooler
Chargepipe with forge diverters
BMS intakes

https://datazap.me/u/tanrich/mhd-sta...og=0&data=3-22

[Sgop335]

Originally Posted by tan_rich

2013 335is DCT
O2 sensor place under warranty about 3 weeks ago
New plugs and eldor coils about 5 weeks ago

Mhd V8.0 Stage 2+ ACN 91
2 gallons e85 and rest 91 about 3 minutes before the pull... lol

BMS downpipes
ER intercooler
Chargepipe with forge diverters
BMS intakes

https://datazap.me/u/tanrich/mhd-sta...og=0&data=3-22

Good log and quick for an acn tune. Think, were you going down a hill by any chance?
Stfts are quite high mostly due to ethanol. Scalars need to be fixed or maybe can try a fuel adap, if its still there in mhd.
Lol must be warm there, we have been in the single digit past week.

[tan_rich]

Originally Posted by Sgop335

Good log and quick for an acn tune. Think, were you going down a hill by any chance?
Stfts are quite high mostly due to ethanol. Scalars need to be fixed or maybe can try a fuel adap, if its still there in mhd.
Lol must be warm there, we have been in the single digit past week.

Slight decline maybe, mostly flat.
Yeah, just fill some e85 to get rid of the timing corrections cause i know with shitty acn gas ...
Ill run it for a little longer and try a few adapt if it still looks fucking.

Yeah its about 70 degrees here in SoCal LOL... Great weather:
cool!:

[EMRtek]

Recently purchased my e92 335 with Hexon 550s. I'm still learning about the N54 and wanted a second opinion on the logs below. The car is FBO with Hexon 550s but on 100% stock fueling and 93.

On this first log the car is only requesting about 17-18lbs. Can someone confirm this is because oil temperature is only 111-115 in this run?

https://datazap.me/u/emrtek/log-1515372029

On this other one, I was sideways for a second in second gear...

https://datazap.me/u/emrtek/log-1515...=0&data=3-5-23

I am planning to do a stage 2 in tank pump to be able to run E60 mix but I want to know if there are any issues that should be corrected before I go that route...

Thanks in advance...

[EMRtek]

Originally Posted by EMRtek

Recently purchased my e92 335 with Hexon 550s. I'm still learning about the N54 and wanted a second opinion on the logs below. The car is FBO with Hexon 550s but on 100% stock fueling and 93.

On this first log the car is only requesting about 17-18lbs. Can someone confirm this is because oil temperature is only 111-115 in this run?

https://datazap.me/u/emrtek/log-1515372029

On this other one, I was sideways for a second in second gear...

https://datazap.me/u/emrtek/log-1515...=0&data=3-5-23

I am planning to do a stage 2 in tank pump to be able to run E60 mix but I want to know if there are any issues that should be corrected before I go that route...

Thanks in advance...

Anybody...?

[Jerain]

New N54 driver and tested the MHD flasher Stage1+, very happy with the added power to fully use my OS Giken Superlock LSD.

Full flash was done in about 16 minutes and totally transformed the car. Don't want downpipes because of louder noise for daily driver but ordered an intercooler to keep IAT down when it becomes summer. Already noticed some clutch slip in 4th gear so probably going to get a new one, not sure what to buy.

The torque reading of 640Nm in the chart, would that be the same as on a european dyno (so not wheel torque but engine torque)? 14-15psi boost is normal in this map? What would my HP numbers be on the dyno?

Thanks

https://datazap.me/u/jerain/2007-335...ata=3-14-22-27

[stiness101]

Originally Posted by 335e92tx

Throttle closure is above 5500 when you are consistently above boost target. Not that out of the ordinary. Big taper on that map.

Yep, try another type of fuel. That 91 is crap. Probably winter blend related.
Looks a little rich. I would keep an eye on that.

Thanks for the response! i'll try a different fuel and do another datalog.

I also keep popping a 30ff on this car whenever it's thoroughly heat soaked and has high IAT's.

[gmx]

Originally Posted by RSL

I think he's specifically meaning the area where it's back at (almost) full TPS, but continues to decline another 500rpm. Everything is pretty gross there, so thinking simple torque loss vs. car weight issue. Clutch delay valve might not be helping, but I've pulled them out of every MT car I've ever owned with no real night/day difference. BMWs might be different?

MTs have no shortage of shift issues that aren't related to anything physical. Search for shift bog, flat line timing, etc. to get some idea of what's potentially out there...

I'm still using the OEM IKM0S timing map and I think it's too aggressive for my local fuel (it's more like a 91-92 than 93).

I'm actually curious what shift bog checkbox entails. As in, what value(s) are actually changed in the map. I wonder if ticking this box via the MHD App then dumping the binary will reveal what is changed.

I've adjusted one thing in TunerPro in that category:
Max Duration of Torque Reduction During Gear Shift changed to 0.80

Unfortunately the feedback from another forum concerning this category of tables is not very scientific and potentially obsolete. It's just people saying they changed 3-4 tables at once and it's "cured" without pinpointing what.

Thanks heaps RSL, 335e92tx, appreciate it a lot and will keep reading/experimenting. Didn't pickup actual timing was 0 degrees and thus flatlining.

EDIT: Oh shit, don't forget your units guys. I think 0.80 is still too high Original value: 1.2seconds.

[Sgop335]

Originally Posted by EMRtek

Anybody...?

I think some people may be wondering why go wot at 115 oil temp.

[RSL]

Originally Posted by EMRtek

I am planning to do a stage 2 in tank pump to be able to run E60 mix but I want to know if there are any issues that should be corrected before I go that route...

Yeah, stop doing high RPM/high shaft speed pulls on ice cold oil. Cold oil has no impact on boost targets that I know of. DME targets load, boost is not it's primary goal and it will vary to some extent. Hard to tell from 1 log, but cylinders are correcting randomly. That's generally OK, but cyl 5 pulls twice. Just keep an eye on it or any for corrections larger than 4-5°, take longer to recover or consistently pull timing in the same spots on every log.

You can't just drop in a pump and add E60 to a pump gas tune, it needs to be re-tuned to 1) run that much E85 regardless of pump and 2) to take advantage of it.

Originally Posted by Jerain

The torque reading of 640Nm in the chart, would that be the same as on a european dyno (so not wheel torque but engine torque)? 14-15psi boost is normal in this map? What would my HP numbers be on the dyno?/

Torque output is an internal number used by the DME. That value is tunable, it is not an accurate indicator of what your motor is actually putting out or even close sometimes. I can show you 300whp tunes with 1000nm torque output.

I don't run OTS maps, so can't say on boost, but seems like what I'd expect from a Stage 1. The car likes it either way. Outside of some heavy negative trims in higher RPMs (still well within range), log looks good. 340-350whp maybe.

[RSL]

Originally Posted by gmx

I'm still using the OEM IKM0S timing map and I think it's too aggressive for my local fuel (it's more like a 91-92 than 93).

I'm actually curious what shift bog checkbox entails. As in, what value(s) are actually changed in the map. I wonder if ticking this box via the MHD App then dumping the binary will reveal what is changed.

I've adjusted one thing in TunerPro in that category:
Max Duration of Torque Reduction During Gear Shift changed to 0.80

Unfortunately the feedback from another forum concerning this category of tables is not very scientific and potentially obsolete. It's just people saying they changed 3-4 tables at once and it's "cured" without pinpointing what.

Thanks heaps RSL, 335e92tx, appreciate it a lot and will keep reading/experimenting. Didn't pickup actual timing was 0 degrees and thus flatlining.

EDIT: Oh shit, don't forget your units guys. I think 0.80 is still too high Original value: 1.2seconds.

Originally Posted by MHD

The MT shift bog fix consist in setting 0.25s for the tables
Max Duration of Torque Reduction During Gear Shift
Max Time Clutch Switch Observation Fast Fuel Cut-off
Max Time Gear Shift Observation Fast Fuel Cut-off

and zeroing Engine Speed - Load Threshold for Fast Fuel Cut-off.

Might give it a try and see if it helps or hurts anything, but I think the "shift bog" is when boost target is held low for 1+ second after the shift before it rises to full. Timing is another, separate issue and there are multiple things that can impact it, I just don't know if any of it applies to MTs

[335e92tx]

Originally Posted by Jerain

New N54 driver and tested the MHD flasher Stage1+, very happy with the added power to fully use my OS Giken Superlock LSD.

Full flash was done in about 16 minutes and totally transformed the car. Don't want downpipes because of louder noise for daily driver but ordered an intercooler to keep IAT down when it becomes summer. Already noticed some clutch slip in 4th gear so probably going to get a new one, not sure what to buy.

The torque reading of 640Nm in the chart, would that be the same as on a european dyno (so not wheel torque but engine torque)?
[BR]

No, not likely transferable to any reference point for the motor itself.

14-15psi boost is normal in this map?
[BR]
Yep, depends on at least 2 aspects; specific rpm you noticed the boost at; and the abmient air pressure. You seem to be at 14.8 which is close to sea level (or below). So I would thats good as long as you didnt see it at 3000 rpm. There is some big taper going on at higher rpm on that map so you wont likely see 13psi at 5500 or up.

What would my HP numbers be on the dyno?

Prob 350 with 380ft/lbs at the ground

[EMRtek]

Originally Posted by Sgop335

I think some people may be wondering why go wot at 115 oil temp.

I know... I had driven the car for over 10 minutes in 65 degree weather and had no clue oil temperature was that low on that first log.

[EMRtek]

Originally Posted by RSL

Yeah, stop doing high RPM/high shaft speed pulls on ice cold oil. Cold oil has no impact on boost targets that I know of. DME targets load, boost is not it's primary goal and it will vary to some extent. Hard to tell from 1 log, but cylinders are correcting randomly. That's generally OK, but cyl 5 pulls twice. Just keep an eye on it or any for corrections larger than 4-5°, take longer to recover or consistently pull timing in the same spots on every log.

You can't just drop in a pump and add E60 to a pump gas tune, it needs to be re-tuned to 1) run that much E85 regardless of pump and 2) to take advantage of it.

What would you say could be causing the timing corrections? IATs were decent and the car is always on 93. Car has new injectors (less than 10k miles), don't know about coils...

I read somewhere that low side fuel pressure should always be above 60psi. Pressure seems to be dropping below that. Also noticed that the car is not reaching requested boost, is this normal for these boost levels?

Here is the link again:

https://datazap.me/u/emrtek/log-1515...=0&data=3-5-23

Thank you...

[RSL]

Random timing corrections are OK. Some of the ones that are correcting are a little large though. It's difficult to avoid them totally unless you want to leave a larger margin (less power). What may be clean in 3rd could have issues in 4th and higher though, so if you plan on spending a lot of WOT time in high RPM and higher gears, it should be tuned to account for that scenario.

A lot of things can cause corrections, including any change in fuel used in the car. Not all 93s are created equally and vary throughout the year even at the same stations. Post-shift timing corrections is another matter, but a tuner can help work those out.

Again, DME targets load, not boost. The boost "target" is relative value used by DME for the boost control PID loop to work off of. DME can and does move boost up or down depending on calculation factors. Boost will generally run below boost target to avoid safeties with custom tunes. Look at boost mean (TMAP reading), not boost psi (calculated value from the DME).

Rail pressure looks fine. I wouldn't be concerned about LPFP even in the 50s so long as the rail pressure doesn't run low anywhere.

It's a maxboost (scaled) tune to boot, which adds another layer to the mix. You'll need a new tune for E60 one way or the other, so just let whatever tuner you use do their thing. This map looks "OK", but if you were staying on pump for a while, I'd consider a having a few tweaks done to match the 93 you're running and either raise target slightly or tweak PID to push a little harder on smaller errors if you want more boost and/or keep it closer to target all the time.

[Jerain]

Thanks to the replyers. I'm going for a budget tuning build to show it is possible. For now around 350 for MTC stepped intercooler, 200 for used gutted oem downpipes (retain stock look for technical inspection), 80 for DCI, 175 for MHD stage 2+. Will try to upload with each upgrade...
My other upgrades are more expensive, around 1000 for flywheel and clutch and 2000 for OS Giken Superlock LSD.

[Ballistic]

Originally Posted by Jerain

Thanks to the replyers. I'm going for a budget tuning build to show it is possible. For now around 350 for MTC stepped intercooler, 200 for used gutted oem downpipes (retain stock look for technical inspection), 80 for DCI, 175 for MHD stage 2+. Will try to upload with each upgrade...
My other upgrades are more expensive, around 1000 for flywheel and clutch and 2000 for OS Giken Superlock LSD.

I have an MTC intercooler available for sale if you're interested.
It's the better (non-stepped) version of the intercooler. It's on thier site.

[Jerain]

Originally Posted by Ballistic

I have an MTC intercooler available for sale if you're interested.
It's the better (non-stepped) version of the intercooler. It's on thier site.

Thanks but I like the lighter tube and fin stepped intercooler better. I'm only aiming around 400hp and temperatures here are mostly low...

[OregonDude]

Hello,
Collected 3 logs on factory DME firmware before I flashed in MHD.
Any feedback on potential existing issues (LPFP, boost leaks, crappy gas...) would be greatly appreciated!
Was about 58 degrees outside at 200' elevation.

Info:

• 2010 E92 335Ci with auto transmission. 104K miles and original turbos
• VRSF 7" intercooler
• VRSF charge pipe and HKS BOV
• The following was done at about 5k miles ago
• Replaced all injectors with index 12
• Walnut blasted
• NGK plugs ILZKBR7B8DG (#95770)

https://datazap.me/u/oregondude/stock-run-1
https://datazap.me/u/oregondude/stock-run-2
https://datazap.me/u/oregondude/stock-run-3

[335e92tx]

Originally Posted by OregonDude

Hello,
Collected 3 logs on factory DME firmware before I flashed in MHD.
Any feedback on potential existing issues (LPFP, boost leaks, crappy gas...) would be greatly appreciated!
Was about 58 degrees outside at 200' elevation.

You really cant infer a lot on OEM maps - see image . They do all kinds of throttle closure once it goes over 9psi especially for a modded n54.

You got better than 91octane out there?
Go to S1 and put some 93 in if you got it and drive for about half a tank. Make a couple WFO runs before you create a log for 2 and 3gear.

[ritzzzzzwik]

Could someone please look at the logs and let me know if they see anything odd. I all of a sudden got multiple misfires today while going WOT. The plugs and coils have about 13K on them, same with injectors. I did notice a long crank past couple days, but I thought it could be the super low temps we are seeing. Did WOT pulls a few days ago no problems, today though, misfires every time. First cylinger 2,and 6; then 1,3,5, and back to 2,6

Needless to say will check coils/plugs again (BL coils ordered 2 weeks ago, but not here yet, so the timing sucks that way)

I see HPFP dip when I go WOT, before it recovers. Car has 157K now, HPFP was first done at 60K under a recall

Here are the logs I could take (3 selectable)

https://datazap.me/u/deritwik/2018-0...13-15-16-22-23