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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. benzy89's Avatar
        benzy89 -
        Click here to enlarge Originally Posted by Moodist Click here to enlarge
        I am in the same boat, that's why I am having Jake of PTF come up to Philly for a tuning day.
        Click here to enlarge Originally Posted by Jeffman Click here to enlarge
        I'm a Cobb Stage1+ guy...everything but the DPs. I have access to E85 and 93 in Philly. Cobb- how difficult would it be to make an E30 map for us 1+ guys?
        Think Jake will be coming up North soon, really hoping to have him around when I dyno & he's ProTuning you guys. PTF is where it's at tho
      1. 654's Avatar
        654 -
        Why not run straight e85?
      1. Carl Morris's Avatar
        Carl Morris -
        Click here to enlarge Originally Posted by enrita Click here to enlarge
        From past maps boost at redline was 15 psi with 190 load
        But when you lower the requested load does the boost go down at all? For me 15psi is much less than 190 load. I can request 190 or 160 and get 15psi either way (but not at redline on my turbos at my elevation).
      1. enrita's Avatar
        enrita -
        Click here to enlarge Originally Posted by Carl Morris Click here to enlarge
        But when you lower the requested load does the boost go down at all? For me 15psi is much less than 190 load. I can request 190 or 160 and get 15psi either way (but not at redline on my turbos at my elevation).
        Never tried to lower, i only go up in load :-)
        with 135 load at redline (stage2+) i think it runs 12-13 psi redline. I can dig out some logs.
      1. bmw335iguy's Avatar
        bmw335iguy -
        Gave the new e30 maps a try last night. I have CA 91 octane piss water so I run a 45% e85 mixture and changed the scalar to 1.186. Car pulls much harder than I remember compared to stage 2+ aggressive but I'm getting boost oscillation's now and never really had them back on the v301 maps. I had been running my jb4 on map 5 for the last 3 months so this is my first time trying a v402 map. Anyways, I sent a log to @jhershorin to see what he thinks. Can't wait to see what this kind of mid range timing and boost will feel like once I get my rb's.
      1. Carl Morris's Avatar
        Carl Morris -
        I've run it for a couple of days but with the scalar bumped up to 1.20 since I already had 50/50 in the tank. I can't tell if it's as fast as my map was...the only major difference was that my timing map was more aggressive at high rpm and theirs is more aggressive in the midrange. But theirs is much smoother. Not sure why. But it's become my base now. Sometimes I think they're not giving us access to everything...I'm curious to see ATP sometime and see what maps it has that ATR does not.

        One thing that I did change today was I had put a fair bit of time and effort and testing into my timing correction factor and timing total correction maps, and I've concluded that I like mine better and put them in. But I'm using their fuel map and their timing map with minor changes to reduce knock on shifts. They had already done it for sea level, but I'm at a lower load level at the target boost and needed to pull a bit of timing in a different spot than where they had pulled it.
      1. Dfv2's Avatar
        Dfv2 -
        Carl, I agree the new map is so much smoother than the one I had been tweaking, has a lot to do with timing from the spool to the main table in my case. The map notes also mention base logic changes, so maybe there are also changes in the background - whatever it is I'm pumped, it's a GREAT map and is now my baseline with only minor tweaks to the main timing table.

        Now, are you saying you have some timing correction table changes that reduce corrections after a shift? I'd love to hear more about this.
      1. Carl Morris's Avatar
        Carl Morris -
        What I've found in my logging is that under my conditions on a shift load drops down to about 80 or a little less when I let off the throttle and then as I start to go full throttle again before the clutch is even engaged I get some knock on OTS maps including the E30 map. This usually occurs as the load is coming back up through the 80-100 range and the rpms are falling as the clutch is hooking up, and is in the 5500 falling to 4500rpm range. I notice that the OTS E30 map pulls timing in that range at a bit higher load in the timing map, and I suspect that's for the same reason but everything is at a higher load level at their elevation. So anyway, I've reduced timing a bit in the 90 load area around 5000rpm.

        Another critical thing is the timing pulled to to high CAT. You'll notice they got aggressive and reduced the amount of timing getting pulled under those conditions, pulling none at all through 50C and very little through 60C. I'm doing my testing with a stock IC so I am hitting those temps and I think it needs a bit more pulled in the 50 and 60C ranges.

        Another critical thing in the same area is how much gets pulled at different load levels due to high CAT. Check out the Timing Total Cor. (Charge Air Temp) map that the previously discussed factor multiplies into. Notice the hole at 4000rpm and 75 load where they only pull 2 degrees. Some of the shift issues I talked about above were falling exactly into that hole momentarily and where I had been pulling maybe 3+ degrees under load suddenly I was only pulling 1 degree for a moment right as I was getting back into the throttle. I would knock there and then it would take several seconds for the knock to bleed off even though it didn't happen under load.

        If there's anything confusing in this I'll post the maps but I'm hoping to have a bit more test time before I do.
      1. boosted-M's Avatar
        boosted-M -
        Click here to enlarge Originally Posted by themyst Click here to enlarge
        What you experience in cylinder 4, I experience in 1 and 4 after the shift. I don't think it's a hardware issue though as it's been happening since my car was 12k miles old and went in for the HPFP recall.

        Here are 2 datalogs with 100% E85 and 100% meth with 1.20 scalar.. I was hoping the 100% E85 would help with my Ign Trimming but as you can see it didn't Click here to enlarge s0 we can assume there is something else wrong here..... One thing I did find is if i'm 100% throttle the car woukd run neg timing but if I backed off the throttle a little bit it woukd run the main timing table targets..

        What do you think could cause this??
      1. themyst's Avatar
        themyst -
        Click here to enlarge Originally Posted by boosted-M Click here to enlarge
        Here are 2 datalogs with 100% E85 and 100% meth with 1.20 scalar.. I was hoping the 100% E85 would help with my Ign Trimming but as you can see it didn't Click here to enlarge s0 we can assume there is something else wrong here..... One thing I did find is if i'm 100% throttle the car woukd run neg timing but if I backed off the throttle a little bit it woukd run the main timing table targets..

        What do you think could cause this??


        Yes sir that is the "flatline" I've been $#@!ing about for years now. I am all but certain it's not hardware.

        Do you have IJE0S ROM and a newer N54?

        In my testing with PTF however I stumbled upon a map that doesn't do this on my car. Im trying to see if it's possible to figure out what is causing it in all my maps except this one.

        Thats a question for dzenno.
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by themyst Click here to enlarge
        Yes sir that is the "flatline" I've been $#@!ing about for years now. I am all but certain it's not hardware.

        Do you have IJE0S ROM and a newer N54?

        In my testing with PTF however I stumbled upon a map that doesn't do this on my car. Im trying to see if it's possible to figure out what is causing it in all my maps except this one.

        Thats a question for dzenno.
        When it happens, is it cylinder 1 advance taking a dive (indicating mapping), or does it stay steady and timing corrections jump up on each cylinder (indicating knock related correction)?
      1. themyst's Avatar
        themyst -
        Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
        When it happens, is it cylinder 1 advance taking a dive (indicating mapping), or does it stay steady and timing corrections jump up on each cylinder (indicating knock related correction)?
        When it happens it shows up as a massive timing correction and is slow to ramp up. IIRC, chuck has the same problem. It happens on cylinders 1 and 4 when it happens though.
      1. boosted-M's Avatar
        boosted-M -
        Here is a pic of cyl #1 spark plug (right side plug) and cyl# 2 (left side) with 500 miles on them.. I'm think the injector is going bad as the car stumbles on start up
      1. boosted-M's Avatar
        boosted-M -
        Click here to enlarge Originally Posted by themyst Click here to enlarge
        Yes sir that is the "flatline" I've been $#@!ing about for years now. I am all but certain it's not hardware.

        Do you have IJE0S ROM and a newer N54?

        In my testing with PTF however I stumbled upon a map that doesn't do this on my car. Im trying to see if it's possible to figure out what is causing it in all my maps except this one.

        Thats a question for dzenno.
        Yes IJEOS and 2010 335xi auto
      1. themyst's Avatar
        themyst -
        Click here to enlarge Originally Posted by boosted-M Click here to enlarge
        Yes IJEOS and 2010 335xi auto
        Those plugs look like valve cover gasket to me.
      1. Dirty Dog's Avatar
        Dirty Dog -
        I run the JB4 and always will but also have a COBB just because. Here's a log from the new E30 map. I'm FBO + meth and 40% E85. Obviously no meth as I wasn't running the JB4 in this log. Way too boost happy.
      1. boosted-M's Avatar
        boosted-M -
        Click here to enlarge Originally Posted by themyst Click here to enlarge
        Those plugs look like valve cover gasket to me.
        Car has 25k Miles on it.. You think the valve cover gasket is bad and oil is getting on the plug?
        Im thinking the injector is on its way out as the coil pack is new and the old spark plug did not look like this... Plus the car stumbles for a few seconds on start up and cyl #1 knock voltage is always higher then the rest?
      1. Legionofboom's Avatar
        Legionofboom -
        I just tested the racemaps.

        The race map feel strong, but my PT map by Mike@PRS (430whp/499wtq converted from mustang dyno) is still stronger and pulls harder through 5-6k. That might also be attributed to the PT map being tuned with meth. (obv)

        Great map though, very strong!
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        What did you put down on the Mustang? Have a chart?
      1. themyst's Avatar
        themyst -
        Click here to enlarge Originally Posted by boosted-M Click here to enlarge
        Car has 25k Miles on it.. You think the valve cover gasket is bad and oil is getting on the plug?
        Im thinking the injector is on its way out as the coil pack is new and the old spark plug did not look like this... Plus the car stumbles for a few seconds on start up and cyl #1 knock voltage is always higher then the rest?
        http://bimmerboost.com/showthread.ph...ing-discussion

        http://bimmerboost.com/showthread.ph...inder-6-issues

        FWIW, car has about 40k miles on it now, still same coils, original injectors, new valve cover gasket done at 32-33k miles.

        Do me a favor, go back to Stage 2 + FMIC aggressive v301, do two 3-4 shifts, one at 6200 rpm, and one at redline. I bet you anything the one where you shift at 6200 RPM will drop timing after the shift and the one at redline won't. If you can do a 4-5 shift, you will see that ALL six cylinders will drop timing to 0 after the shift.