[Ænema]

Originally Posted by ragingpanda

I loaded those maps (IJE0S) and my timing always peaked at around 9 degrees near redline where as in the v402 it always peaked at around 13 degrees.

Truth be told, I only tried v403 for about a day as I preferred the older map and maybe I didn't let it adapt though...

Could you post up a couple datalogs of the 4.03 map? It sounds like you were either having corrections or your CATs were high and that was causing the DME to pull back on the timing.

[ragingpanda]

Originally Posted by Ænema

Could you post up a couple datalogs of the 4.03 map? It sounds like you were either having corrections or your CATs were high and that was causing the DME to pull back on the timing.

I'll post them up whenever I load up v403 again.

[DallasBoosted]

So these are my two datalogs from last night with v. 4.02 Stage 2 + FMIC.

Anybody see any issues with these?

Mods are: Vishnu DCI's, VRSF FMIC, VRSF catless DP's, VRSF exhaust.

Was considering raising the load target above 5000rpm to 6500rpm to 190 to try to hold on to some top end power, and maybe adding 1 degree of timing in the 180 load column. Most of the time in 3rd/4th I shift the car at 6000rpm anyway.

The second run was about 10 seconds after the first, I did one third gear pull, logged it, then did another pull right after braking down.

Edit: In the second datalog, the timing corrections were in cylinders 1, 2, & 5, and were only 3.38 degrees each

Thanks for any input

[Ænema]

The logs looked solid. Like you said you had a couple corrections in the second log but nothing to fret over. Also, you weren't having overboost induced throttle closures that a lot of people are having with the + maps so that's good.

You could definitely experiment around with ATR to see what you can do. With my car on 93 i've found it beneficial to actually pull a little boost out and bump up the timing a little, but different cars respond differently so you may able to just bump up the timing a touch without having to drop the boost.

[DallasBoosted]

Originally Posted by Ænema

The logs looked solid. Like you said you had a couple corrections in the second log but nothing to fret over. Also, you weren't having overboost induced throttle closures that a lot of people are having with the + maps so that's good.

You could definitely experiment around with ATR to see what you can do. With my car on 93 i've found it beneficial to actually pull a little boost out and bump up the timing a little, but different cars respond differently so you may able to just bump up the timing a touch without having to drop the boost.

If you up the load a bit and don't touch timing, whats the result? Will it try to keep boost higher or will it give more timing than the timing table suggests to make up the load difference?

[Ænema]

Originally Posted by DallasBoosted

If you up the load a bit and don't touch timing, whats the result? Will it try to keep boost higher or will it give more timing than the timing table suggests to make up the load difference?

Upping requested load just requests more boost. It will not run more timing to meet load targets because load is determined by RPM, TPs and MAF(boost)

However, upping requested load can affect timing but not like you're thinking. When you change requested load(up or down) then you change actual load. Actual load determines timing(as you can see when you look at the main timing table.) So, just keep in the timing table in mind when adjusting the load table.

[Jeffman]

I'm running Stg1+FMIC and have access to E85...anyone try the E30 map with stock exhaust? Any issues? Thanks.

[benzy89]

Originally Posted by JHR

I'm running Stg1+FMIC and have access to E85...anyone try the E30 map with stock exhaust? Any issues? Thanks.

I'm not running COBB's E30 Map, but I have an E85 ProTune that's for ~40% Ethanol with the Stock CBE (catless DPs). If you're gonna buy E85, I highly recommend buying from the Shell on Vine Street in Philly

[Jeffman]

Originally Posted by benzy89

I'm not running COBB's E30 Map, but I have an E85 ProTune that's for ~40% Ethanol with the Stock CBE (catless DPs). If you're gonna buy E85, I highly recommend buying from the Shell on Vine Street in Philly

Thanks. I've been there twice. I'm not sure if I want to push the ethanol content that high...concerned about long-term ethanol corrosion issues...
Right now I'm running a summer PTF e-tune from Jake that's been starting to pull timing now (-6, -8 degrees) in the colder weather, so I threw in a few gallons of E85 with a Vpower fill-up and everything settled down nicely. Since I'm already at ca. E25, another gallon of E85 brings me to E30, but the Cobb OTS E30 map requires DP...

[COBB Tuning]

Originally Posted by JHR

Thanks. I've been there twice. I'm not sure if I want to push the ethanol content that high...concerned about long-term ethanol corrosion issues...
Right now I'm running a summer PTF e-tune from Jake that's been starting to pull timing now (-6, -8 degrees) in the colder weather, so I threw in a few gallons of E85 with a Vpower fill-up and everything settled down nicely. Since I'm already at ca. E25, another gallon of E85 brings me to E30, but the Cobb OTS E30 map requires DP...

Most likely your ProTune runs similar timing as our OTS E30 map, so I doubt there would be much if any gain from going with our OTS. Jake is a good guy and I'm sure he could let you know if there's more to be had.

Originally Posted by ragingpanda

I loaded those maps (IJE0S) and my timing always peaked at around 9 degrees near redline where as in the v402 it always peaked at around 13 degrees.

Truth be told, I only tried v403 for about a day as I preferred the older map and maybe I didn't let it adapt though...

The 403 maps are the same as 402 as far as timing goes. We upped the version when they went from beta to release. We tweaked the WGDC table for some overshoots we were seeing, but even 91 customers seemed to have solid timing logs if using a proper mix, so we approved them for 91 as well. Keep in mind that these maps are really aggressive regardless, so make sure you log. If you're seeing corrections, you can use ATR to pull some timing, or contact one of our ProTuners if you want as much power as possible for a specific car.

-Josh

[sparkyblue]

Let me get this straight, in order to run the COBB OTS E-30 v403 Map.

To get 30% Ethanol with California ACN91 & E85. I should mix 50% E85 & 50% ACN91 correct?

[VNeBLOB42]

Originally Posted by sparkyblue

Let me get this straight, in order to run the COBB OTS E-30 v403 Map.

To get 30% Ethanol with California ACN91 & E85. I should mix 50% E85 & 50% ACN91 correct?

No,

E30 means 30% ethanol. Which is at min. 4.25 gallons of E85 to a full tank. With 91 you may have to mix slightly more. Based upon 91 having 10% ethanol.

But log to be sure.

http://www.intercepteft.com/calc.html. Use this calculator at the bottom. E85 is 96 AKI octane to 91 octane AKI..

Which comes to about 92.3 AKI octane.

[farb]

quick newb question, is there a way for the AP to show boost in PSI instead of BAR?

[Ænema]

Originally Posted by farb

quick newb question, is there a way for the AP to show boost in PSI instead of BAR?

The AP does display boost in PSIg. It displays boost mean abs and requested boost in PSI.
EDIT: What VNeBLOB said below. Select "? Access port" then "settings" then "units" and then "standard."

[VNeBLOB42]

Originally Posted by farb

quick newb question, is there a way for the AP to show boost in PSI instead of BAR?

Yes, I believe it's under one of the menus on the AP. can't remember what it's called. But I believe it's either metric or standard overall. Not sure if you can changed just 1 entity.

[Schnitzel]

Cobb, please remove this useless cat warm-up cycle. I'm catless and my neighbors will kill me one day. Half the village awakes every morning when I start my car.

[benzy89]

Originally Posted by Schnitzel

Cobb, please remove this useless cat warm-up cycle. I'm catless and my neighbors will kill me one day. Half the village awakes every morning when I start my car.

They should be awake anyhow

[sparkyblue]

Originally Posted by VNeBLOB42

No,

E30 means 30% ethanol. Which is at min. 4.25 gallons of E85 to a full tank. With 91 you may have to mix slightly more. Based upon 91 having 10% ethanol.

But log to be sure.

http://www.intercepteft.com/calc.html. Use this calculator at the bottom. E85 is 96 AKI octane to 91 octane AKI..

Which comes to about 92.3 AKI octane.

I actually ran 50/50 E85/ACN91 for a month and it pulled hard. I logged a few times and timing seemed good and the LTFT/STFT did not exceed 32%.

Would it cause any harm to run that high of a mix?

According to the calculator you linked I should be mixing 9 gallons of 91 & 5 gallons of E85 to get 36.5%. (I'd like to run 5% higher ethanol content as a buffer).

[COBB Tuning]

Originally Posted by sparkyblue

I actually ran 50/50 E85/ACN91 for a month and it pulled hard. I logged a few times and timing seemed good and the LTFT/STFT did not exceed 32%.

Would it cause any harm to run that high of a mix?

According to the calculator you linked I should be mixing 9 gallons of 91 & 5 gallons of E85 to get 36.5%. (I'd like to run 5% higher ethanol content as a buffer).

If you run more ethanol, you can use ATR to adjust the fuel scalar accordingly and get your trims as close to zero as possible (there's also a table in the tuning guide for mixing ratio to fuel scalar value). Just continue to log and make sure long/short term trims are good. Enjoy the extra power at an affordable price

-Josh

[VNeBLOB42]

^^^ This

Originally Posted by sparkyblue

I actually ran 50/50 E85/ACN91 for a month and it pulled hard. I logged a few times and timing seemed good and the LTFT/STFT did not exceed 32%.

Would it cause any harm to run that high of a mix?

According to the calculator you linked I should be mixing 9 gallons of 91 & 5 gallons of E85 to get 36.5%. (I'd like to run 5% higher ethanol content as a buffer).

[sparkyblue]

Originally Posted by COBB Tuning

If you run more ethanol, you can use ATR to adjust the fuel scalar accordingly and get your trims as close to zero as possible (there's also a table in the tuning guide for mixing ratio to fuel scalar value). Just continue to log and make sure long/short term trims are good. Enjoy the extra power at an affordable price

-Josh

Got it, ill try to play with the Fuel Scalar value in ATR to get trims in order.

Few questions though.

1. When data-logging, the Cobb AP only allows for a handful of variables to log. Cobb suggests the ones to log on the warning page for the E30/Race Maps. But it looks to me like not all variables are matching up on the site with the ones in our COBB AP and one or two essential ones I feel are missing. Such as "Boost".
But when I try to add boost to the datalog variable list, it gives me an error stating I have selected too many variables and that I should remove some and try again.

Can I get a definitive list of the important variables to datalog on the Cobb AP for running an E85/91 Mix.

http://www.cobbtuning.com/v/vspfiles...FinalAlpha.pdf

^- lists a handful, but fails to add-in the all important LTFT/STFT's, and even without those fuel-trim variables they list too many. (I counted 32)

2. The AccessTUNER help file pdf I linked above is the only "tuning guide" I could find. I read through the whole thing and it doesn't go over playing with the "fuel scalar" values. Could you point me in the right direction as to which guide it is?

--EDIT::
Looks like I found the answer to this here:

http://accessecu.com/cobbtuningweb/s...lpFile_BMW.pdf

Seems like someone at Cobb removed the fuel scalar table from the Final-HelpFile.

After looking at the fuel scalar table. I think i'll make it easy on myself and continue with the 50/50 E85 & ACN91 Octane Mix. Which makes for a 47.5% ETHANOL content. (7 Gallons @ E85 & 7 Gallons @ ACN91 OCT) [135i has a 14 gallon tank]. I'd like to ask one more time though, there will be no harm in running this high of a mix correct? The OTS E-30 map should run this just fine, assuming I get the fuel scalar values locked down and the STFT/LTFT's down to as close to 0 as possible correct.

50/50 E85 & ACN91 = 47.5% ETHANOL content. However I'll set the fuel scalar at 44% ETHANOL content, to account for Winter E85 blend & station discrepancies. Cant wait till tomorrow, going to fill up and give the E44 Scalar a try.



3. When using AccessTUNER software, the guide above says to "Attach the OBDII cable to the vehicle and the associated USB cable to the computer". Does that mean I should connect the "CAR -> OBDII -> COBB AP -> USB -> COMPUTER".

4. Lastly, I want to give my thanks to Cobb for providing us such a great product. The COBB AP is indefinitely better than the other tuning options out there right now for my needs. Its easy to install, simple to datalog (no need to run a USB cable from engine bay + computer in passenger seat), and as of recently allows for us to make stupid amounts of power easily with the E-30 & Race Maps. Coming from the Cobb dominated Subaru world, I was so happy to see you guys announcing your introduction to the BMW N54 family late last year.

[COBB Tuning]

1. Here's what I would use for initial E30 map logging. Once everything looks ok, you can change these up to monitor different things. For example, if you're not getting boost overshoots/throttle closures, you can get rid of MAF Req(WGDC) and Boost Setpoint Factor as they're only needed for the axis to adjust the WGDC table.
Lambda (Bank 1)
Lambda (Bank 2)
Ped Pos. (%)
TPS Act. (%)
Timing Cor. (1-6)
Timing Cyl. (1)
Load Act.
Load Req.
MAF Req. (WGDC)
Req. Boost Abs. Boost Mean Abs.
Boost Set point Factor
Boost
RPM
STFT 1-2
LTFT Bank 1-2

2. You should be fine with that map and that mix as long as you adjust the scalar and your logs look clean. More ethanol generally means more knock resistance (which is a good thing).

Also, for those that don't know... The Tuning Guide is also bundled into ATR/ATP, just click 'Help' in the Help menu.

3. You have the hookup correct. Just make sure that you click Ctrl+F, select your Gauges, then click 'Copy To Log' so that the same monitors will be in your log as your gauge list. You can also use the AP by itself for logging, but you'll only have one gauge to view in that case.

4. Glad you're enjoying the AP! Let us know if you have any other questions and we'll do what we can to help you out.

-Josh