[335e92tx]

Originally Posted by autoart

what do you guys think, cobb stage 2 aggressive 93 fbo: https://datazap.me/u/autoart/log-151...&data=1-7-8-22

that log didnt load.

Might want to update your post to
https://datazap.me/u/autoart/log-151...og=0&data=1-22

or

https://datazap.me/u/autoart/log-151...=0&data=1-3-22

Otherwise looks ok.
IATs in the 120 range,, pretty high .. you in the middle of one of the fires?

[alpineweissm]

Hello, just testing the health of my IS. It has a rough idle, but otherwise seems to run good. I'm just bad at reading logs. Any help is appreciated.

https://datazap.me/u/alpineweissmatt...=0&data=3-4-17

50k miles
Brand new plugs & coils
Walnut blast ~ 15k miles ago
Fresh Oil
Only mods are k&n drop in filter and VRSF charge pipe
DCT trans on V8 Stg 1+

[335e92tx]

Originally Posted by alpineweissm

Hello, just testing the health of my IS. It has a rough idle, but otherwise seems to run good. I'm just bad at reading logs. Any help is appreciated.

https://datazap.me/u/alpineweissmatt...=0&data=3-4-17

50k miles
Brand new plugs & coils
Walnut blast ~ 15k miles ago
Fresh Oil
Only mods are k&n drop in filter and VRSF charge pipe
DCT trans on V8 Stg 1+

mine did too - at 12K miles even. I did the lucas and run Sunoco. Does help. But now with the different intake it idles closer to 750 so its harder to tell if its that rough.
You might have a single leaky inj. Pull the plugs and see if one is really noticeably darker than the other. Got one bank that is slower to come up to ~lambda?

Not a lot abnormal. Only slight increase over OEM map. I would try to enable boost mean and turn off cyl timings for #2-6. Only keep Timing CORRECTIONS for all 6 cls. I would also turn on load requests and load actual.

IATs coming up quick, you will need an IC for the next maps really. Kind of hard to tell what happened at the shift without load request and load actual. You went over some target and it closed throttle and reduced the timing for cyl 1. Those events will be more likely with higher maps. Need to have the variables turned on for them to see what is going on.

Also try to turn on LAMBDA1 and 2 and short term fuel trims1 and 2. Can you go to the monitor mode and select defaults and see if that returns the values that are missing. A lot is not there that should normally be.

[alpineweissm]

I think the idle issues are associated with the V8 1+ map. Either that, or I got a hold of some bad coils. I'm going to flash back to V7 1+ and see if that helps the idle, then run another log with your recommended values. I have the idle set to 750 for the purpose of smoothing it out, so it being rough now worries me. Some of the plugs are a little dark, and the #6 has some oil on the threads.

[gmx]

Having a self-tune go before custom:
https://datazap.me/u/gmx/v043?log=0&...19-22-23-24-25

Can't really figure out the throttle closure at 5500-5700 rpm. Only thing is load actual seems to match request here. No corrections, and overshoots like earlier in the pull.
1M/iS map with Load Target Offset (overboost) in place, WGDC base and PID tables not touched yet.

[lowson]

Hi, all,

New of N54, 2007 AT, my mod/maintain is belowed. just try from v8 stage2+ 93Oct to E30. My pump gas is only bad quality 93Oct. Just want to try E30 map by start snow meth ( 8PSI start, 13PSI full ). Here is the result. Seems more timing correcting and wild stft vs 93Oct map. Plz help to give me some advice if I can keep E30 map or return to 93Oct.

https://datazap.me/u/lowsonchen/log-...72-61-70-67-62

stock hybrid turbo
catless downpipe / 76mm full ti exhaust
HPF intercooler
injen intake
stock inlets
new HFPF / stage2 LFPF
snow stage2 meth
Greddy oil cooler
Dephi coils / NGK 95770@0.20"
HKS HQV

Thanks!

[RSL]

Originally Posted by gmx

Having a self-tune go before custom:
https://datazap.me/u/gmx/v043?log=0&...19-22-23-24-25

Can't really figure out the throttle closure at 5500-5700 rpm. Only thing is load actual seems to match request here. No corrections, and overshoots like earlier in the pull.
1M/iS map with Load Target Offset (overboost) in place, WGDC base and PID tables not touched yet.

I'm not sure what the overboost emphasis is, but overboost tables exist in XDFs and will not be used by the DME on other than N54B30T0 roms (1M/335is/Z4is) in any way that I'm aware of. If your "N54 6MT" car isn't a T0 and you simply copied defined table values from an IKM0S rom to your original rom, overboost tables shouldn't do anything. If it's not a T0 car, drop the overboost offset tables to 0, leave everything else where it is and see if load/boost drop when you think overboost is active. I actually haven't used overboost in so long, can't remember if the kickdown needs to be activated or not

Throttle is closing 5500-5700rpm because boost is over target.

Originally Posted by lowson

Hi, all,

New of N54, 2007 AT, my mod/maintain is belowed. just try from v8 stage2+ 93Oct to E30. My pump gas is only bad quality 93Oct. Just want to try E30 map by start snow meth ( 8PSI start, 13PSI full ). Here is the result. Seems more timing correcting and wild stft vs 93Oct map. Plz help to give me some advice if I can keep E30 map or return to 93Oct.

https://datazap.me/u/lowsonchen/log-...72-61-70-67-62

stock hybrid turbo
catless downpipe / 76mm full ti exhaust
HPF intercooler
injen intake
stock inlets
new HFPF / stage2 LFPF
snow stage2 meth
Greddy oil cooler
Dephi coils / NGK 95770@0.20"
HKS HQV

Thanks!

Go back to 93. E85 is a totally different fuel with completely different mass requirements, E maps compensate for that. E30 map is obviously too much timing for what you're running and E maps are designed to have that full octane and fuel mass everywhere, not just some extra at 8+psi. If you're going to use pump gas and meth, you're much better off getting a custom tune for that specific setup. Meth injection isn't the same as E85 in the tank and trying to use OTS E85 maps like it is wouldn't be advisable.

[lowson]

Originally Posted by RSL

Go back to 93. E85 is a totally different fuel with completely different mass requirements, E maps compensate for that. E30 map is obviously too much timing for what you're running and E maps are designed to have that full octane and fuel mass everywhere, not just some extra at 8+psi. If you're going to use pump gas and meth, you're much better off getting a custom tune for that specific setup. Meth injection isn't the same as E85 in the tank and trying to use OTS E85 maps like it is wouldn't be advisable.

Thanks for your advice. Actually I've try Oct95 and the result seems to be the same as E30. multi cyl timing <5degree, even more wild stft (bank1/2 all -34 at high rpm), others looks normal.But E30 is more significant powerful all range than Oct95.
Why DME short fuel at high rpm when go to high Oct or E map? High Oct and E map should need more fuel, is that right ? If DME do so, it means MHD high rpm fuel supply is too rich for my hardware? But my turbo is hybrid, should supply more air than stock at the same psi. Still can't figure out the logic. Can anybody share experience.

Anyway, thanks again for your advice.

[RSL]

Originally Posted by lowson

Thanks for your advice. Actually I've try Oct95 and the result seems to be the same as E30. multi cyl timing <5degree, even more wild stft (bank1/2 all -34 at high rpm), others looks normal.But E30 is more significant powerful all range than Oct95.
Why DME short fuel at high rpm when go to high Oct or E map? High Oct and E map should need more fuel, is that right ? If DME do so, it means MHD high rpm fuel supply is too rich for my hardware? But my turbo is hybrid, should supply more air than stock at the same psi. Still can't figure out the logic. Can anybody share experience.

Anyway, thanks again for your advice.

You tried 95 octane OTS map? If you can't get it done clean on a 95 map with 93+meth, E30 with no actual E85 content will only be more problematic. The basic point you're missing is that gasoline is not ethanol and you're using gasoline only on an ethanol map. While adding meth injection may similarly cool combustion and add knock resistance like ethanol, it does not change the fact that it's actually gasoline coming out of the injectors in higher ethanol-specific volumes. That would almost certainly be the primary source of your negative trim issues. -34% is max negative trim BTW. Once you hit that limit, the DME can do no more to pull out fuel and AFRs will increase.

E85 and gasoline maps are specifically designed and labelled for the type of fuel to be used and the amount. The names are not just indicative of octane levels. There are fundamental differences between ethanol and gasoline and the maps have fundamental differences in tune for each fuel type and amount of ethanol. You can get away with adding some E85 to pump gas maps, but it's obviously not as forgiving with gas only on E85 maps. I understand the E30 map feels faster than the gasoline maps, but E85 maps are simply not designed to run on gasoline only.

That all said, if you have hybrids too, you are completely wasting your time with any OTS map. Any larger than stock turbos will have much more available, especially at higher RPM and no OTS map is tuned for that. On a custom tune, you could make the same or more power on just gasoline, more with the meth, have fewer corrections and issues with trims and everything dialed in specifically to your car, your setup, in your environment and on the fuel you actually use.

Don't waste any more time or risk potential problems trying to force the issue with OTS maps that aren't remotely designed what for you have or how you're trying to use them. Get in touch with a decent tuner ASAP.

[gmx]

Originally Posted by RSL

I'm not sure what the overboost emphasis is, but overboost tables exist in XDFs and will not be used by the DME on other than N54B30T0 roms (1M/335is/Z4is) in any way that I'm aware of. If your "N54 6MT" car isn't a T0 and you simply copied defined table values from an IKM0S rom to your original rom, overboost tables shouldn't do anything. If it's not a T0 car, drop the overboost offset tables to 0, leave everything else where it is and see if load/boost drop when you think overboost is active. I actually haven't used overboost in so long, can't remember if the kickdown needs to be activated or not

Throttle is closing 5500-5700rpm because boost is over target.

Thanks man, didn't realise it was that sensitive to deviation.

It is a 1M T0 with IKM0S ROM/XDF. I only have N54 6MT in there so vendors/private sellers don't price-gouge me . I actually think I might get rid of it entirely as it seems to be more complex to hold some decent boost up top. Initially I was under the impression that overboost pre-conditions would be good to maintain.

I will try some more load request, WGDC Adder (rescaled to 333 for now) in those cells and see what happens. Failing that I'll pull WGDC base at that maf g/s and boot setpoint cell. I assume this is the correct approach based upon what I've read and slowly learning.

[lowson]

Originally Posted by RSL

You tried 95 octane OTS map? If you can't get it done clean on a 95 map with 93+meth, E30 with no actual E85 content will only be more problematic. The basic point you're missing is that gasoline is not ethanol and you're using gasoline only on an ethanol map. While adding meth injection may similarly cool combustion and add knock resistance like ethanol, it does not change the fact that it's actually gasoline coming out of the injectors in higher ethanol-specific volumes. That would almost certainly be the primary source of your negative trim issues. -34% is max negative trim BTW. Once you hit that limit, the DME can do no more to pull out fuel and AFRs will increase.

E85 and gasoline maps are specifically designed and labelled for the type of fuel to be used and the amount. The names are not just indicative of octane levels. There are fundamental differences between ethanol and gasoline and the maps have fundamental differences in tune for each fuel type and amount of ethanol. You can get away with adding some E85 to pump gas maps, but it's obviously not as forgiving with gas only on E85 maps. I understand the E30 map feels faster than the gasoline maps, but E85 maps are simply not designed to run on gasoline only.

That all said, if you have hybrids too, you are completely wasting your time with any OTS map. Any larger than stock turbos will have much more available, especially at higher RPM and no OTS map is tuned for that. On a custom tune, you could make the same or more power on just gasoline, more with the meth, have fewer corrections and issues with trims and everything dialed in specifically to your car, your setup, in your environment and on the fuel you actually use.

Don't waste any more time or risk potential problems trying to force the issue with OTS maps that aren't remotely designed what for you have or how you're trying to use them. Get in touch with a decent tuner ASAP.

Got it. Will survey costom tune for my next step, I think I will keep this interest car for a couple year, appreciate for your input again.

[RSL]

Originally Posted by gmx

Thanks man, didn't realise it was that sensitive to deviation.

It is a 1M T0 with IKM0S ROM/XDF. I only have N54 6MT in there so vendors/private sellers don't price-gouge me . I actually think I might get rid of it entirely as it seems to be more complex to hold some decent boost up top. Initially I was under the impression that overboost pre-conditions would be good to maintain.

I will try some more load request, WGDC Adder (rescaled to 333 for now) in those cells and see what happens. Failing that I'll pull WGDC base at that maf g/s and boot setpoint cell. I assume this is the correct approach based upon what I've read and slowly learning.

Closures vary depending how much over, what RPM, etc. The response can be tuned, but I'd leave that safety alone and just get the boost curve dialed in.

Ah, OK. Yeah, overboost is almost not needed, but can certainly remain in place if you want to keep it. I personally just found it easier early on to just dial in on the main load tables since kickdown button for overboost almost always resulted in a downshift out of 3rd when trying to log at low starting RPM and you don't have to deal with the timers and decays either. They do have those timers/decay table defined now, so you could certainly adjust them as you wish if you want to keep overboost operation in place and not worry about it ending early or falling off too fast.

Yeah, first increase load target and/or boost limit multi to get the target higher and allow more actual, then tweak PID/base as necessary. PID is already trying to pull DC out when overboost ends/load request drops (WGDC after PID less than WGDC base).

https://datazap.me/u/gmx/v043?log=0&...-30-31&mark=40

WGDC Adder adds/removes to WGDC base, just a quick way to effect it in low res. Make sure Adder Ceiling is higher than Adder or it will limit the adjustments you're making.

Good luck!

[gmx]

Apologise for this in advance, I get this odd behaviour every now and then when shifting fast as I can from 2nd to 3rd and laying into it. It's either clutch slip or has there been history with the CDV delaying more than usual or causing noticable slippage on gear change?
Oddly, flooring it uphill in 4th/5th around peak torque exhibits no slip.

You can see the steady RPM decline with the following log and the markers before the car picks up again:
https://datazap.me/u/gmx/v042?log=1&...-25&mark=21-25

This has happened to me twice now, caught it on log once.

[gmx]

Another one 2 weeks ago actually:
https://datazap.me/u/gmx/1m-98ron-dp...-25&mark=46-39

[stiness101]

Car threw another 30ff code and i noticed the DV vacuum lines were pretty perished so replaced them and did a 3rd gear pull.

Noticed a lot of throttle closure in the topend and seems like a decent amount of timing pull?

https://datazap.me/u/stiness/3rd-gear?log=0&data=3-20

[Version335i]

Could any check out my log? Thanks

MHD stg 2+ v7.1 with DP's+FMIC
https://datazap.me/u/version335i/log...13-15-24-27-32

[335e92tx]

Originally Posted by stiness101

Car threw another 30ff code and i noticed the DV vacuum lines were pretty perished so replaced them and did a 3rd gear pull.

Noticed a lot of throttle closure in the topend and seems like a decent amount of timing pull?

https://datazap.me/u/stiness/3rd-gear?log=0&data=3-20

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.

[335e92tx]

Originally Posted by Version335i

Could any check out my log? Thanks

MHD stg 2+ v7.1 with DP's+FMIC
https://datazap.me/u/version335i/log...13-15-24-27-32

retards in 4th are pretty high. You are losing about 4 degrees of what would be advance in the 5000 rpm range. Dump some ethanol in there and see what happens in 4th.

Otherwise looks ok.

[335e92tx]

Originally Posted by gmx

Apologise for this in advance, I get this odd behaviour every now and then when shifting fast as I can from 2nd to 3rd and laying into it. It's either clutch slip or has there been history with the CDV delaying more than usual or causing noticable slippage on gear change?
Oddly, flooring it uphill in 4th/5th around peak torque exhibits no slip.

You can see the steady RPM decline with the following log and the markers before the car picks up again:
https://datazap.me/u/gmx/v042?log=1&...-25&mark=21-25

This has happened to me twice now, caught it on log once.

I guess this is a wedge custom map? - Not seeing what you are saying specifically. But in the first log after the shift into 3 I see a dip that looks strange. At about time stamp 2149.2 - but it seems you lifted off the accelerator pedal.

Originally Posted by gmx

Another one 2 weeks ago actually:
https://datazap.me/u/gmx/1m-98ron-dp...-25&mark=46-39

And the second log doesnt have an abnormal event at all that I Can see.

Try to get one in 4th. A solid long pull and see if you can tell about what rpm it happens.

[gmx]

My own custom tune, very mild and slowly progressing along.

It doesn't happen in gear WOT yet. I lifted at 2149.2 due to being cut off.

I mean the "problem" I'm experiencing is in between the shifts. The rpm is still dropping while the TPS is completely open in between the flags specifically starting from 2147.79. In the second log, it's at 179.28. You can see the TPS open and the RPM is declining as if there is no power transfer. The engine audibly slows down and seems "strangled" or choked before normalising again.

I'm almost certain it is actually the clutch starting to slip especially where the pressure plate cannot hold on tip-in post shift which puts it in the meat of the tq band. The odd thing is it doesn't happen ever in gear WOT uphill etc where you'd normally test clutch condition. It only happens when I shift a bit quicker, and maybe 20% of the time if that.

[RSL]

RPM rises when clutches slip while on the gas. Just a guess, but have somewhat large timing pulls all cylinders at the same time and boost is still on its way back up. Sluggishness you feel is probably just loss of torque. The motor loses steam on timing pull, the weight of the car gains an edge and drags RPM down instead of the motor accelerating the car at the same rate.

First one is not as bad as this, but same MO.

https://datazap.me/u/gmx/1m-98ron-dp...-50&mark=46-44

Either way, slipping clutch certainly won't slow the motor.

[335e92tx]

Originally Posted by RSL

RPM rises when clutches slip while on the gas. Just a guess, but have somewhat large timing pulls all cylinders at the same time and boost is still on its way back up. Sluggishness you feel is probably just loss of torque. The motor loses steam on timing pull, the weight of the car gains an edge and drags RPM down instead of the motor accelerating the car at the same rate.

First one is not as bad as this, but same MO.

https://datazap.me/u/gmx/1m-98ron-dp...-50&mark=46-44

Either way, slipping clutch certainly won't slow the motor.

Yep, what he said. You are likely seeing some effect of the throttle closure combined with the timing getting pulled that makes it seem like it lost thrust.

But the event in 3rd is bc you went over boost target.. (at least why the throttle closure happened probably),, but the timing didnt help

When it was in second, it only had the throttle closure not the Timing pull also.