• 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. ChuckD05's Avatar
        ChuckD05 -
        Myst is correct, I am getting this same annoying timing dip 3-4 shift, but letting the car shift at redlines seems to help/fix it, but not 100% of the time

        I have treid JB4 only, JB4 Flash, Stg 2+ , Alpha e30

        right now my strongest config is BMS flash with g5 and meth, the alpha race i tried is ok for a non meth map but still have drops on 3-4 shifts in DS and using paddles shifting where I "should"
      1. boosted-M's Avatar
        boosted-M -
        Click here to enlarge Originally Posted by themyst Click here to enlarge
        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.
        Can you PM or email me the V301 map?
        I will def do whatever it takes for us to figure this out!!!
      1. RnmEvo9's Avatar
        RnmEvo9 -
        Click here to enlarge Originally Posted by ChuckD05 Click here to enlarge
        Myst is correct, I am getting this same annoying timing dip 3-4 shift, but letting the car shift at redlines seems to help/fix it, but not 100% of the time

        I have treid JB4 only, JB4 Flash, Stg 2+ , Alpha e30

        right now my strongest config is BMS flash with g5 and meth, the alpha race i tried is ok for a non meth map but still have drops on 3-4 shifts in DS and using paddles shifting where I "should"
        I could have sworn you had a manual 135i...

        I'll do some logs and see if I can reproduce the same timing dips.
      1. VNeBLOB42's Avatar
        VNeBLOB42 -
        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.
        +2 Working with Jake very soon to maximize my S1+
      1. vwgrk1's Avatar
        vwgrk1 -
        I am seeing this 3-4 shift issue on a manual xi. No knock correction during my in gear runs, but pulls timing on multiple cylinders...and for awhile, mind you...in 4th gear after a shift from 3rd.

        I'm wondering if it is a quick switch from lower timing at the top end of 3rd to very high timing while one is shifting/getting back on the gas and load is climbing. Lower loads run higher timing, so is it is a climb and quick drop causing this?

        I've yet to reach out to Cobb to ask if this is normal or maybe other noise being picked up by the knock sensor. I remember Subarus having shift knock due to a similar reason.
      1. themyst's Avatar
        themyst -
        Click here to enlarge Originally Posted by vwgrk1 Click here to enlarge
        I am seeing this 3-4 shift issue on a manual xi. No knock correction during my in gear runs, but pulls timing on multiple cylinders...and for awhile, mind you...in 4th gear after a shift from 3rd.

        I'm wondering if it is a quick switch from lower timing at the top end of 3rd to very high timing while one is shifting/getting back on the gas and load is climbing. Lower loads run higher timing, so is it is a climb and quick drop causing this?

        I've yet to reach out to Cobb to ask if this is normal or maybe other noise being picked up by the knock sensor. I remember Subarus having shift knock due to a similar reason.
        Nope I have a tune that goes from 14 degrees at redline then spikes 12 degrees right after the shift into 4th.
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Timing flatline after shifts is a tuning issue. It can't be fixed with piggybacks. Ben's car was a chronic flatliner and a half and I've managed to resolve it through tuning...it took a ton of time to track down using various means but with the right tools at hand its definitely curable/tunable..its not a one fix fits all solution either but more in overall calibration for a given car

        Funny how one famous tuner swore his PWM meth kit was the solution to it, so sad
      1. TLO03's Avatar
        TLO03 -
        Click here to enlarge Originally Posted by Josh@Cobb Click here to enlarge
        Enjoy guys! Jason's 535xi is a beast on this tune. Go install, datalog, and get us some .

        Can someone point me to this Jason guy, what kinda mods dose he have?
      1. boosted-M's Avatar
        boosted-M -
        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        Timing flatline after shifts is a tuning issue. It can't be fixed with piggybacks. Ben's car was a chronic flatliner and a half and I've managed to resolve it through tuning...it took a ton of time to track down using various means but with the right tools at hand its definitely curable/tunable..its not a one fix fits all solution either but more in overall calibration for a given car

        Funny how one famous tuner swore his PWM meth kit was the solution to it, so sad
        Great to hear!
        What is Ben's screen name?
      1. RnmEvo9's Avatar
        RnmEvo9 -
        Click here to enlarge Originally Posted by boosted-M Click here to enlarge
        Great to hear!
        What is Ben's screen name?
        I'm pretty sure its themyst
      1. rader1's Avatar
        rader1 -
        Click here to enlarge Originally Posted by RnmEvo9 Click here to enlarge
        I'm pretty sure its themyst
        Yep
      1. Itsbrokeagain's Avatar
        Itsbrokeagain -
        Click here to enlarge Originally Posted by boosted-M Click here to enlarge
        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

        No way that is oil. If you had oil, you would see oily around the hex used to pull the sparkplug out, AND the threads would be wet...oil will not dry out like that.


        It is an injector...Id prolly replace that one to start, and maybe the rest at another point soon. Stumbling on start up? 95% sure its an injector.
      1. ChuckD05's Avatar
        ChuckD05 -
        Click here to enlarge Originally Posted by RnmEvo9 Click here to enlarge
        I could have sworn you had a manual 135i...

        I'll do some logs and see if I can reproduce the same timing dips.

        I did. I sold it and moved on to a 09 coupe. Missed a white car (all my cars have been white) and needed a loaded car. 1 was fun though. This is the first AT car I've owned in my life that costed me more than 2k but it's relaxing yet enjoyable.

        its AW with coral red mtech 7at. Stripped the 1 moved to this. Also can't wait to put a proper wheel on it.
      1. vwgrk1's Avatar
        vwgrk1 -
        Too bad it isn't a simple solution, but it is good to know that there are ways to fix it. May I ask: is this true knock that I have to worry about?
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Whether something that comes up as timing corrections is true knock or not is debatable as it can also very well be noise pickup...the best thing to try doing is to minimize it as much as possible...timing corrections that I've seen on some cars post shift go in the negative 10-12 range on some cylinders and then they very slowly ramp up from there towards zero or just above zero and that definitely kills a ton of power moving to the next gear
      1. Flexinator's Avatar
        Flexinator -
        I have a similar flat line event from a custom map I made for e85. I was overboosting on the e30 ots map, so I just upped the timing on the stage2+ map and added the fuel scalar... from 3-4 shift I loose all my timing advance... anyone have an idea what causes this?

        Attachment 20618
      1. Flexinator's Avatar
        Flexinator -
        i tried again 3-4 shift, I am seeing a ton of timing corrections... I am wondering if what happens is the load actual is reduced as you push back down on the gas, so the engine is trying to advance the timing to 20ish degrees, then as load rises quickly the timing goes back down, but its too late, a knock occurs, and as you build load the engine is already retarding timing...

        here's another log
      1. Itsbrokeagain's Avatar
        Itsbrokeagain -
        A question for you guys. I was talking to Bruce over at TTM today regarding a Benz, and he said those cars slap the throttle shut to shift to the next gear without blowing stuff up. Does the N54 do the same thing?

        I wonder if it does, and would that be a possible cause as to why its throwing a $#@!load of timing correcting as you get into the next gear?
      1. Itsbrokeagain's Avatar
        Itsbrokeagain -
        Click here to enlarge Originally Posted by Flexinator Click here to enlarge
        I have a similar flat line event from a custom map I made for e85. I was overboosting on the e30 ots map, so I just upped the timing on the stage2+ map and added the fuel scalar... from 3-4 shift I loose all my timing advance... anyone have an idea what causes this?

        Attachment 20618
        If you are overboosting, the first thing I would have done was to pull timing. If I am reading this correctly, you tried to add more timing on top of the already high boost? The motor would very well indeed pull a $#@!load of timing and show a knock event.
      1. Flexinator's Avatar
        Flexinator -
        I changed to a less aggressive map, it doesn't over boost on this map at all. In fact on a single gear pull it usually looks really good. Shifting 3 to 4 though... U see some problems