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    • BMW N54 AccessPORT Beta Race Fuel and E-30 Maps



      COBB Tuning is proud to announce the immediate availability of Beta Race Fuel Maps and E-30 Blend Fuel Maps for Stage2+ AccessPORT equipped BMW N54 vehicles! Gains of 50% more power over a stock N54, and +40HP / +45lb-ft torque over our Stage2+ Aggressive maps are just a flash and a fill-up away. These Race and E-30 maps provide the ultimate in plug-and-play performance for the driver looking for the most from their BMW. If your vehicle meets the hardware requirements for this map, and you have access to 100 octane race fuel, or E-85 fuel, acquiring this level of performance has never been easier. Simply download one of our free Beta Race or E-30 maps, reflash your DME with the AccessPORT, fill-up with the appropriate fuel and experience the rush of high-octane power gains.




      These new Beta Race and E-30 Fuel Maps include adjusted boost levels, fuel delivery, ignition timing and base programming logic to improve performance and reduce DME intervention that conflicts with driver input. In addition, the speed limiter and rev limits have been raised. In simple terms, with the torque and load limiters moved out of the way, fuel mixtures and timing adjusted for race fuel, and driver nannies pushed aside, we have enabled the N54 to deliver big power gains and consistent power delivery with simple bolt-ons and a diet of race gas or an E-30 blend.

      In order to use these maps the following conditions must be met:



      • Access to high quality race fuel with a minimum octane rating of 100 AKI (105 Ron) or greater for Race maps, or access to E-85 and 93 octane (98 Ron) or greater to achieve a blend of 30% ethanol for E-30 maps
      • Requires upgraded intake system (DCI, panel filter or similar)
      • Requires upgraded front-mount intercooler and piping (FMIC)
      • Requires upgraded downpipes
      • Highly recommend upgraded cat-back exhaust system



      With great power comes even greater responsibility, and these maps are no exception. Data logging vehicle performance is an absolute requirement when using these maps to ensure that the mechanical systems of your BMW and the quality of fuel are up to the task of supporting these Beta Race and E-30 maps. Instructions on how to data log, which parameters to log, and how to evaluate engine performance are explained in this BMW Race and E-30 Fuel Data Logging Instructions document.

      It doesn't get much easier than this. There are no firmware updates required and there is no need to perform an AccessPORT Uninstall and Install. Just download the appropriate map, transfer to your AccessPORT, flash your DME, fill up with the proper fuel and go. For assistance with the map download and transfer process, just follow this Step-By-Step Map Download and Install Tutorial.

      If you are ready to experience huge power gains and refined power delivery with simple supporting mods and race gas or E-30, head on over to our BMW AccessPORT Off-The-Shelf Map Database, click on the Race Maps link, and download your free Beta Race or E-30 Map to get your adventure rolling!



      This article was originally published in forum thread: BMW N54 AccessPORT Beta Race Fuel and E-30 Maps started by COBB Tuning View original post
      Comments 136 Comments
      1. JStang's Avatar
        JStang -
        I'm going to try to swing by the station that carries E85 tonight which is conveniently located on my drive home from work. When I fill my tank up from what I consider bone dry (single digits until empty, I know...shame on me) I usually get about 16.2XX gallons in the tank. With that said, 5 gallons of E85 to a full tank of 93 octane should yield a blend of 31% E85 and 69% 93 octane.

        Does this sound right to you guys? I will try to post some logs once the adaptions take place.
      1. johmei's Avatar
        johmei -
        I had problems with overboosting and throttle closure as a result. Going with the WGDC base table, after advice from Cobb, took care of the problem for me!
      1. johmei's Avatar
        johmei -
        Looking closer I actually have similar overboosting. arghh..
      1. neilvosko's Avatar
        neilvosko -
        is there any issue upping the scalar for 30% E85 in the Stage 2+ aggressive map and add E85 to clean up timing and then when just driving casually sometimes not add any E85 on the ST2+ map but leave the e30 scalar with straight 93 octane?
      1. marv85's Avatar
        marv85 -
        Click here to enlarge Originally Posted by neilvosko Click here to enlarge
        is there any issue upping the scalar for 30% E85 in the Stage 2+ aggressive map and add E85 to clean up timing and then when just driving casually sometimes not add any E85 on the ST2+ map but leave the e30 scalar with straight 93 octane?
        You don't need 30% to clean the timing up on stage2+ agg on 93 octane. Just add in 10%, and don;t change anything. Your DME can't easily take care of that much E85, and you won;t have to deal with scalars... it's just not worth it.

        on another note, are your plugs good? coils ? I started getting timing drops out of nowhere some time back that were completely cleaned up by new plugs.
      1. neilvosko's Avatar
        neilvosko -
        i just changed all my plugs and coils, but getting constant drops of timing on cyl 4, figure have to replace the injectror.

        no big deal, i had just replaced cyl 1 injector and coded it myself.
      1. Jeffman's Avatar
        Jeffman -
        I actually did what you suggested. I was getting a lot of timing drops on 93 octane with my PTF Protune. I added a little E85 maybe a gallon but the timing drops were still noticeable. Then I aksed Jake who modified my scalars for my PTF Protune for E20 and E30 as another 2-3 gallons of E85 made the timing drops go away. That was earlier last Fall. More recently I went back to just 93 and my normal E10 PTF Protune as I heard flushing the system with E10 helps to remove "junk" on the fuel filter caused by too much E85. Now I have no timing drops back on E10. So now I'm suspicious that I may had a bad tank of E10 93 last Fall. Go figure.
      1. AltecBX's Avatar
        AltecBX -
        Click here to enlarge Originally Posted by Jeffman Click here to enlarge
        I actually did what you suggested. I was getting a lot of timing drops on 93 octane with my PTF Protune. I added a little E85 maybe a gallon but the timing drops were still noticeable. Then I aksed Jake who modified my scalars for my PTF Protune for E20 and E30 as another 2-3 gallons of E85 made the timing drops go away. That was earlier last Fall. More recently I went back to just 93 and my normal E10 PTF Protune as I heard flushing the system with E10 helps to remove "junk" on the fuel filter caused by too much E85. Now I have no timing drops back on E10. So now I'm suspicious that I may had a bad tank of E10 93 last Fall. Go figure.
        Didn't understand this. Some questions
        Is it a 135 or 335? Tank size
        Did you have 2 maps done by PTF? What maps
      1. benzy89's Avatar
        benzy89 -
        Click here to enlarge Originally Posted by AltecBX Click here to enlarge
        Didn't understand this. Some questions
        Is it a 135 or 335? Tank size
        Did you have 2 maps done by PTF? What maps
        Tank size doesn't matter at all. It sounds like he has a light E85 blend map (E20/E30) and then a Pump Gas Map for 93 octane (E10). This shouldn't be anything special this is the common setup that most people who get COBB PROtunes have: 1 pump gas & 1 E85-blend tune
      1. AltecBX's Avatar
        AltecBX -
        Click here to enlarge Originally Posted by benzy89 Click here to enlarge
        Tank size doesn't matter at all. It sounds like he has a light E85 blend map (E20/E30) and then a Pump Gas Map for 93 octane (E10). This shouldn't be anything special this is the common setup that most people who get COBB PROtunes have: 1 pump gas & 1 E85-blend tune
        Got it just re-read. I was reading it wrong thinking the E10 was a special map since he reference 93 before. But now that I read it again I see what he means E10=93. Just woke up Click here to enlarge

        But 3 gallons of E85 on a 14gal tank is different from 3gal on a 16gal tank. different ratios
      1. benzy89's Avatar
        benzy89 -
        Click here to enlarge Originally Posted by AltecBX Click here to enlarge
        But 3 gallons of E85 on a 14gal tank is different from 3gal on a 16gal tank. different ratios
        But he provided the ratios (E20/E30), so if it's that important just do the math. It's also people remember that E85 from a pump can vary in ethanol content anywhere between 70-85%. So if you're running your correctly mixed E85 map and seeing an abnormal amount of timing corrections, it's possible the E85 you pumped into your car isn't actually E85, but instead maybe E75 (made up value). So adding an extra gallon or two (depending on how strong of a mix you're running), should get your ethanol content where it should be.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by benzy89 Click here to enlarge
        But he provided the ratios (E20/E30),
        Ya that ratio is the ratio no matter the size of the tank.
      1. AltecBX's Avatar
        AltecBX -
        Got it!

        So is his PTF map tuned to handle E20-E30(E20/E30)? That's where I think I a bit confused.
      1. benzy89's Avatar
        benzy89 -
        Sounds like it -- Basically a PROtuned version of COBB's E30 OTS Map
      1. AltecBX's Avatar
        AltecBX -
        If that's the case, now I understand. Thanks
      1. Jeffman's Avatar
        Jeffman -
        Sorry for the confusion. I have a 335xi. I have PTF maps for E10, E20 and E30. The only difference between the E20 and E30, compared to the E10, are the fuel scalars. Timing and power are about the same for all of them. My E30 is not like the Cobb E30 beta - Jake could advance the timing curves much more for more power, but I'm fine with the current level and just want to be sure the engine runs smoothly with no timing drops. I hope this is clear. Please let me know if you have any further questions.