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| 07-25-2012, 06:59 PM | #1 |
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BMW N54 AccessPORT Now Supports Alternate Fuels
 COBB Tuning is proud to announce that BMW N54 AccessPORT users can now tune for alternate fuels, such as E85, with the latest updates in AccessTUNER Race and AccessTUNER Pro tuning software. AccessPORT end-users and professional tuners can quickly update AccessPORT maps to accommodate fuels of different specific energy using the newly added Fuel Scalar tables, resulting in proper fuel trims during engine operation. This development opens the door for BMW N54 enthusiasts looking to take advantage of the performance and cost benefits of using E85 and other fuel blends. Prior to this development, BMW N54 enthusiasts were limited to the extent they could blend E85 with regular gasoline and still have the engine operate safely within the window that the ECU fuel trims could accommodate. By giving end-users and professional tuners the ability to manipulate fuel scalars on their own, this limitation has been removed, allowing the ECU to operate with alternate fuels in the same way it does with traditional gasoline and maintain fuel trims within a range of 1%-3% while producing impressive power gains with excellent power delivery characteristics.    A Fuel Scalar table is assigned to each cylinder bank in the AccessTUNER software. For most ECU’s, these tables are simple one-dimensional scaling factors that allow the user to adjust the fuel scaling up or down as needed. In the 1M ECU, the fuel scalar tables are two-dimensional 16x16 tables that scale fuel based on engine RPM and load.  Non-1M ECU Fuel Scalar Table  1M ECU Fuel Scalar Table Due to variation in fuel blends across the country, E85 Off-The-Shelf maps will not be available for download. Instead, the end-user is empowered to tune specifically for the fuel blend at their favorite fuel source using AccessTUNER software and data-logging to ensure proper performance. This also allows the end-user to blend different fuels to their liking and quickly tune for it. The BMW AccessTUNER Help Guide has been updated to include Fuel Scalar table descriptions as well as a reference chart for estimated Fuel Scalar values for different blends of ethanol and gasoline. To update AccessTUNER and acquire the latest Fuel Scalar tables, simply open the software, click on Help in the menu bar, select Updates and click Check for Updates. In the pop-up window, check the Beta Software box in the lower right corner. Click the Get Updates button and follow on-screen instructions to complete the software upgrade and start tuning for alternate fuels! Software Version AccessTUNER Pro: 1.9.1.0-4419 AccessTUNER Race: 1.9.1.0-4414  Last edited by COBB Tuning; 07-25-2012 at 08:33 PM.. |
| 07-25-2012, 08:04 PM | #4 |
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J1V3.455.7URCK3Y
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Lol, you guys better put a disclaimer on those pictures before people start jamming ears of corn in their gas tanks.
BTW, you Cobb folk just sold another AP tonight   |
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| 07-25-2012, 08:38 PM | #7 |
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pretty funny pics...
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| 07-25-2012, 09:05 PM | #8 |
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So I was looking at the scale table on the guide, to me it looks like you can run pure E85 using ATR. Has this been tested by you guys?
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| 07-26-2012, 12:40 AM | #10 | |
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Quote:
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Ohlins R&T 1m setup, m3 rear links, M3 arms, bushings, AR Downpipes, ARK DTS exhaust, SPEC S3+/Mfactory, Stett CP, Stett CAI, ETS FMIC, RB EVO Stealths, Motiv PI, VTT Inlets.
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