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All COBB Tuning AccessPORT Flash for N54 335i Discussion Here
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04-01-2013, 05:26 PM | #7173 |
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E85 will require the fuel system to work harder, any time you put additional stress on a part it shortens it's lifespan. However, the use of E85 is getting VERY common and we aren't seeing more HPFP failures than we used to. Hell, HPFPs crap out on 100% stock cars just about as often as they do on tuned ones. So I guess it's more about how lucky you are lol
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04-01-2013, 05:46 PM | #7174 | |
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enlighten me. It was my understanding that ACN 91 was Arizona, California and Nevada. Oh wait I just answered my own question. In other states, 91 would still be better than ACN 91, which is the worst gas in the nation. yes i may have used 91 octane loosely. But for OP sake, he was from Arizona. So my intent is still valid.
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04-01-2013, 05:52 PM | #7175 | |
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04-01-2013, 05:58 PM | #7176 | |
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I would let you car adapt to S1 Drive first. A few WOT pulls and you'll be adapted. Run that for a day or two, just so you can get used to COBB and the new tune. If you want more power you can ease your way up to Sport on ACN 91. post some logs. If all is good, then you know S1 Sport is good without any fuel additives. Now you are ready to try S1 Agg. with 3 gallons of E85. Again do some logs. The reason I would suggest starting down low is because you can see how your car responds. If you jump to S1 Agg. you may find out that you need some Coils or Spark Plugs, we don't want any misfires happening right away. better to walk before run.
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04-01-2013, 06:04 PM | #7177 | |
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04-01-2013, 06:08 PM | #7178 |
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Others have said it better than I can, but modest mixes of E85 dont "damage" the fueling system so much as they make it work harder to deliver the fuel. If you add in too much ethanol, the car runs out of fuel trim and you can lean out. But as long as you keep the mixture modest, shooting for say an E15-25 overall mix, you should be fine, and you certainly should be able to run the aggressive maps. I feel terrible for people who can't get 93 pump for whatever reason, that's just brutal. But there are ways around it
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04-01-2013, 06:44 PM | #7179 | |
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04-02-2013, 12:47 AM | #7180 |
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OMG I didn't realize what I have been missing since running JB3 all these years. I took out my JB3, installed Stg2+FMIC LT Aggrssv IJE0S v402
and the car feels awesome!! Soooo smooth compared to JB3. I am running 94 octane and my mods are in my signature. I have posted a log so please give me some advice where needed. I did a 2-3 pull. The first file, I pressed to log by accident and did not set up properly. Last edited by Drakos; 04-02-2013 at 01:01 AM.. |
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04-02-2013, 01:08 AM | #7181 | |
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Everything i see looks good. 1 mild timing correction(not a problem) and some overboosting but not enough to cause a dip in TPS.
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04-02-2013, 01:21 AM | #7183 |
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Not really, it looks like the tune is running just fine.
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04-02-2013, 03:35 PM | #7184 |
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Logs
I just installed a 5"ETS intercooler and went stage 1+ aggressive. 93 octane East Coast Shell.
1) I discovered that at stage 1+ if you go to do a 2-3 pull with the winter tires still on, 45F ambient and dry, with Quaife LSD installed, you will leave about 75 feet of double rubber burns down the highway. 2) My log files are attached. These aren't the greatest pulls, but everything looks grossly ok. Max boost is 17.5 PSI. Anyone spot anything off? There were what I think small throttle closures at peak boost--my DTC was off for sure. 3) ETS intercooler seems to be working... Good charge air temp. 4) My concern is timing corrections. I have small max 3 degree corrections in a few cylinders at different times. With these small corrections am I ok to stay with Stage 1+ aggressive? (N.B. I have brand new plugs and injectors.) Thanks- |
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04-02-2013, 03:59 PM | #7185 |
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Can you just post the data? I can only speak for myself, but those damn graphs are annoying to look over.
-17.5psi sounds just about right -a few timing corrections like you mentioned are not the end of the world, I wouldnt be worried about that.
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04-02-2013, 04:26 PM | #7186 |
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I'll have to get back home to see if I can convert the .csv files to something I can post here.
I did just notice that cylinder 5 actually went to timing -6 in the middle of my 2nd gear pull, and then cyl 5 timing correction went to zero before I upshifted to 3rd. Following that two other cylinders had timing corrections of -3 max. At what point do you back off from the 1+ aggressive map? Anecdotally, the car runs great. 2010 E92 N54 stage 1+ ETS 5" intercooler, 93 octane Shell. 2-3 pull. |
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04-02-2013, 04:37 PM | #7187 | |
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04-02-2013, 05:53 PM | #7189 |
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sorry but i don't have enough experience to give you a thorough review on your logs. But i do know that this will help out the other folks who can read logs alot better than i can.
http://www.e90post.com/forums/showthread.php?t=696472 this thread explains the proper way to perform COBB data log. Also, keep an eye on #5 Cyl. when My Cyl #3 was doing that I switch coils 2 and 3. As expected the Timing Corrections follow to #2. And again as expected, during my Pro ETune, ended up getting misfires on #2. Changed Coil everything was good. But in your case it could be coil or spark plug.
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04-02-2013, 06:49 PM | #7190 |
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Indeed. Because I have new plugs and injectors, I would think that if there was a single cylinder issue that you'd be right and the first move would be to swap a coil.
However, in my case on this single pull 3 cylinders had corrections, one was 6 degrees, and the other two were 3 degrees. The corrections were finite and did not last throughout the pull. Another way of wording my question to the gurus: At what amplitude of timing correction and in how many cylinders would you start to worry that you are running too aggressive a map for your gas? Edit: Doing some searching revealed some threads elsewhere in which it said that timing corrections in no more than 3 cylinders at a time at WOT is acceptable. Do you agree? Last edited by E92mech; 04-02-2013 at 07:00 PM.. |
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04-02-2013, 06:53 PM | #7191 | |
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04-02-2013, 09:49 PM | #7192 |
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Better bang for the buck Pro Tune or stage 1+?
What is the better value pro tune or Fmic for stage 1+? I don't know what a tune costs and the Fmic has warranty and labor involved. I am sure the usual answer is "both" but 4.01 usually satisfies anyway.
What are everyone's thoughts and which is the easiest and best bang for the buck? (Oh yeah cobb tuner is 20 min from home) Thx! |
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04-02-2013, 10:16 PM | #7193 | |
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04-02-2013, 10:21 PM | #7194 | |
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