• 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. Josh@Cobb's Avatar
        Josh@Cobb -
        Click here to enlarge Originally Posted by enrita Click here to enlarge
        So there are differences to the WGDC between OTS STage 2+ and E30 map? is only the WGDC BASE map that should be modified in case of overshoot?
        There are differences there as well as in the adder tables. The 2 guys I've seen with overshoots look like their issues were low enough in the rpm range that the WGDC (Base) should take care of them. The adder tables were changed to carry power out a bit longer. There are only a few cells in the WGDC(Base) that changed between stage 2+ and the E30/Rage Gas maps. They are the 4 cells in the 189 and 200 columns and 2.167 and 2.260 rows. If you paste the Stage 2+ Aggressive table into the E30 map, you'll see the changes.
      1. lulz_m3's Avatar
        lulz_m3 -
        Click here to enlarge Originally Posted by Josh@Cobb Click here to enlarge
        There are differences there as well as in the adder tables. The 2 guys I've seen with overshoots look like their issues were low enough in the rpm range that the WGDC (Base) should take care of them. The adder tables were changed to carry power out a bit longer. There are only a few cells in the WGDC(Base) that changed between stage 2+ and the E30/Rage Gas maps. They are the 4 cells in the 189 and 200 columns and 2.167 and 2.260 rows. If you paste the Stage 2+ Aggressive table into the E30 map, you'll see the changes.
        Rage gas maps, your typo seems oddly appropriate. Click here to enlarge
      1. Josh@Cobb's Avatar
        Josh@Cobb -
        Hahaha... I used to call my Mk2 VR6 the 'rage car'. Force of habit lol
      1. Jason@Cobb's Avatar
        Jason@Cobb -
        Click here to enlarge Originally Posted by lulz_m3 Click here to enlarge
        Rage gas maps, your typo seems oddly appropriate. Click here to enlarge
        Click here to enlarge Click here to enlarge
      1. zeel's Avatar
        zeel -
        rage gas is the new e85!
      1. vwgrk1's Avatar
        vwgrk1 -
        Josh or Jason from Cobb, do you have any thoughts on the 3-4 shift timing corrections referenced earlier in this thread? It kills 4th gear performance.
      1. sparkyblue's Avatar
        sparkyblue -
        Two issues for me, I currently am running DCI/Catless DP/Catless Mids/Berk Axleback. How big of a deal is it if I run the E30 map without an upgraded IC? Assuming I don't do anything crazy like track it or what not. Just some fun highway pulls, or maybe even possibly a spirited canyon run. Is it safe or tolerable to run with my current setup?

        Second issue is that I live in CA with the terrible ACN91 gas. Can I
        mix my ACN91 with E85 to achieve E30? I have a 135i, which holds approximately 14 gallons.
      1. lulz_m3's Avatar
        lulz_m3 -
        Click here to enlarge Originally Posted by sparkyblue Click here to enlarge
        Two issues for me, I currently am running DCI/Catless DP/Catless Mids/Berk Axleback. How big of a deal is it if I run the E30 map without an upgraded IC? Assuming I don't do anything crazy like track it or what not. Just some fun highway pulls, or maybe even possibly a spirited canyon run. Is it safe or tolerable to run with my current setup?

        Second issue is that I live in CA with the terrible ACN91 gas. Can I
        mix my ACN91 with E85 to achieve E30? I have a 135i, which holds approximately 14 gallons.
        If you have access to ATR and feel comfortable using it, my suggestion to you would be to run closer to E50, increase the fuel scalar on the map a bit in ATR, and log it. Without an intercooler you're going to want the additional ethanol to help combat cylinder temps.
      1. vwgrk1's Avatar
        vwgrk1 -
        Click here to enlarge Originally Posted by sparkyblue Click here to enlarge
        Two issues for me, I currently am running DCI/Catless DP/Catless Mids/Berk Axleback. How big of a deal is it if I run the E30 map without an upgraded IC? Assuming I don't do anything crazy like track it or what not. Just some fun highway pulls, or maybe even possibly a spirited canyon run. Is it safe or tolerable to run with my current setup?

        Second issue is that I live in CA with the terrible ACN91 gas. Can I
        mix my ACN91 with E85 to achieve E30? I have a 135i, which holds approximately 14 gallons.

        I'd think you'd be fine with slightly higher ethanol, as mentioned above. On an otherwise stock setup I'm running 50% ethanol (over 9 gallons of E85) and 93 octane with 0 timing corrections on a similar map. My timing is as high, but I am running richer and with less aggressive boost settings. There is still room. Another angle from which to observe is that Vishnu runs similar timing/boost on a DCI only car and higher ethanol.

        Try logging some 3 to 4 shifts at WOT and let us know what you find.
      1. Dfv2's Avatar
        Dfv2 -
        Click here to enlarge Originally Posted by vwgrk1 Click here to enlarge
        Josh or Jason from Cobb, do you have any thoughts on the 3-4 shift timing corrections referenced earlier in this thread? It kills 4th gear performance.
        Bump for views, I know PTF is successfully alleviating the issue, somehow. Any insight?
      1. boosted-M's Avatar
        boosted-M -
        Jason or Josh, can you help us?
        We have a discussion going on about the timing flatline here:
        http://www.germanboost.com/showthrea...obb-cars/page2
      1. Jason@Cobb's Avatar
        Jason@Cobb -
        Click here to enlarge Originally Posted by Dfv2 Click here to enlarge
        Bump for views, I know PTF is successfully alleviating the issue, somehow. Any insight?
        Hey Guys,

        We are aware of the Timing deviation that some of you are seeing. We have been in contact with some of our Pro-Tuners that have a "work around" for it. We are looking into it and attempting to replicate it in house. Hopefully we'll have an update for everyone in the near future. Click here to enlarge

        Click here to enlarge
        Jason
      1. boosted-M's Avatar
        boosted-M -
        Click here to enlarge Originally Posted by Jason@Cobb Click here to enlarge
        Hey Guys,

        We are aware of the Timing deviation that some of you are seeing. We have been in contact with some of our Pro-Tuners that have a "work around" for it. We are looking into it and attempting to replicate it in house. Hopefully we'll have an update for everyone in the near future. Click here to enlarge

        Click here to enlarge
        Jason
        OK, we are patiently waiting and if you need me to perform any specific tests let me know so I can hit the Dyno and 1/4 track!!
      1. bmw335iguy's Avatar
        bmw335iguy -
        Click here to enlarge Originally Posted by Josh@Cobb Click here to enlarge
        Your LTFTs and STFTs are fighting each other, but should correct themselves as you put miles on the car (with varying states of driving). As the DME sees that short terms are regularly negative, it will start to work that into the long terms and both will approach zero. Keep an eye on them as they are keeping your actual final trim (STFT and LTFT together) close to zero now, but since they're almost maxed in opposite directions, it would be good to watch them. Make sure your AFR's stay near their request.

        As stated, it looks like you're getting some throttle closures due to boost overshoots. You could either modify the WGDC(Main) table to correct these, or try copying the WGDC values from another OTS map (stage 2 for example). Thanks for providing the logs, this is the type of feedback that helps us get the best possible final maps out for release.
        So I changed the wgdc base table to the v301 stage 2+ aggressive tables and did a bunch of logs. I also pulled 1 degree of timing out across the board in the 130-180 load columns. Fuel scalar is set to 1.16. Running a 50/50 blend of 91/e85. Seems to have cleaned up the boost oscillations. I also added HPFP and LPFP actual and requested in all logs except for datalog10. Let me know what you guys think.
      1. Turkeybaster115's Avatar
        Turkeybaster115 -
        Interesting, but the problem with Cobb tunes, especially their stage 2 beta maps is that the car throws overboost codes when tackling a race course.
      1. enrita's Avatar
        enrita -
        Click here to enlarge Originally Posted by Turkeybaster115 Click here to enlarge
        Interesting, but the problem with Cobb tunes, especially their stage 2 beta maps is that the car throws overboost codes when tackling a race course.
        Those maps are not out anymore. The official 402 do not throw overboost codes as the 301.
      1. Turkeybaster115's Avatar
        Turkeybaster115 -
        Click here to enlarge Originally Posted by enrita Click here to enlarge
        Those maps are not out anymore. The official 402 do not throw overboost codes as the 301.
        Has this been verified at a race course?
      1. enrita's Avatar
        enrita -
        L
        Click here to enlarge Originally Posted by Turkeybaster115 Click here to enlarge
        Has this been verified at a race course?
        Give me 3 weeks. Mine did not overboost with the 401 either on a track.
        did you test the new ones since you go often on a track?
      1. Turkeybaster115's Avatar
        Turkeybaster115 -
        Click here to enlarge Originally Posted by enrita Click here to enlarge
        L
        Give me 3 weeks. Mine did not overboost with the 401 either on a track.
        did you test the new ones since you go often on a track?
        No I didn't. I'm just good old JB+, FMIC, DP's. It was a friend of mine whose car was throwing the overboost codes at the track.
      1. enrita's Avatar
        enrita -
        Click here to enlarge Originally Posted by Turkeybaster115 Click here to enlarge
        No I didn't. I'm just good old JB+, FMIC, DP's. It was a friend of mine whose car was throwing the overboost codes at the track.
        Than tell your friend to load the latest maps....