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  1. #1
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    What can be expected from the N55

    Hi all,

    I have a 2012 135i DCT with a JB4 stage 2, CPE uncatted DP, and a Remus axle back.
    Dyno at 310 WHP and 424 WTQ (on a mustang dyno).
    I think thats prett cool, but how strong are the intrenals in this N55?

    What can it safely go up to?

    Reason is, I have a C6 Z51 at 525 whp to catch. Its on!

    Cheers
    Craig

  2. #2
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    The internals will take much more than the stock turbo can currently output anyway.

    For the N55 to really show what it is capable of, a turbo upgrade is necessary.

    To catch that C6... well, it's going to be a while.

  3. #3
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    Stock motor = Max power you'll see is high 300 WHP/low-mid 400 WTQ


    Until the tuning gets more advanced/aftermarket turbos hit the N55 scene, it's limited by the stock snail
    COBB AP ProTune by Bren of ///Bren Tuning
    Akrapovic DP | Helix FMIC | Alpina TCM Flash | Walbro 450LPH Fuel Pump


    "The moment money becomes your motivation, you are immediately not as good as someone who is motivated by passion and internal will." -A. Senna

  4. #4
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    I might be mistaken, but I thought there has been a few N55 guys hitting 400whp




  5. #5
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    Click here to enlarge Originally Posted by E90SoFlo Click here to enlarge
    I might be mistaken, but I thought there has been a few N55 guys hitting 400whp
    only n54. The highest n55 whp Is like 350 or so.
    Burger Motorsports
    Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

  6. #6
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    Here's a dyno slip from an FBO N55 (JB4, BMS DP, BMS Intake, Helix FMIC). It was run on Helix's 2WD Mustang dyno (MD-250)

    Click here to enlarge

    @badblk335i can comment on whether he was just running pump gas or an E85 blend
    COBB AP ProTune by Bren of ///Bren Tuning
    Akrapovic DP | Helix FMIC | Alpina TCM Flash | Walbro 450LPH Fuel Pump


    "The moment money becomes your motivation, you are immediately not as good as someone who is motivated by passion and internal will." -A. Senna

  7. #7
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    I made 329whp and 400 wtq on a mustang Dyno. Car is 6mt FBo, meth and e85 on 19 psi.

    The problem for me is not the peak hp but the rapid loss of power over 5k rpm.

  8. #8
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    Click here to enlarge Originally Posted by benzy89 Click here to enlarge
    Here's a dyno slip from an FBO N55 (JB4, BMS DP, BMS Intake, Helix FMIC). It was run on Helix's 2WD Mustang dyno (MD-250)

    Click here to enlarge

    @badblk335i can comment on whether he was just running pump gas or an E85 blend
    Sorry for the delayed response. Haven't been on the forums in a long time.

    I have the mods Benzy listed above and was running 3 gallons of E85 with the rest 93 octane. I am having a hard time believing I put down 405.2hp and 441 tq. The car pulls very very hard but considering people running meth haven't been able to break the 400 hp mark and I did without it makes me skeptical. Everyone was spot on with their Dyno readings which is weird.

    I am now running JB4 ISO and the car delivers the power much much smoother. I hope to Dyno again once the weather warms up at Undercover Performance and get other numbers to compare.
    Click here to enlarge
    | BMS JB4 ISO | BMS METH KIT | BMS DP | BMS Intake |
    | ER CP | Helix FMIC | B3 FLASH | KW V2 | VMR 718 | HANKOOK V12 |

  9. #9
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    Do the N55 ISO firmware & flexfuel wires, and run 50% E85 along with map 5, for a lot more fun. Click here to enlarge
    Burger Motorsports
    Home of the Worlds fastest N20s, N54s, N55s, N63s, S55s, and S63s!

    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please see http://www.burgertuning.com/emissions_info.html for more information on legal requirements related to use of BMS parts.

  10. #10
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    1 out of 1 members liked this post. Yes Reputation No
    What is the difference between regular N55 JB4 stage 2 and ISO firmware? I plan on running flexfuel...just emailed you about that terry! you think i need the ISO firmware to go faster?

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    Is the isofirmware also available for the 640i gc platform?
    640i GC/ 328i n20/ w463
    997 gt3

    E63 m6 evolve s2, te37sl, swift/cks, vorsteiner lip & trunk gone
    C6 z06 gone
    boss 302 gone
    997.1 gone
    z4m gone

  12. #12
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    Click here to enlarge Originally Posted by krnnerdboy Click here to enlarge
    Is the isofirmware also available for the 640i gc platform?
    @Terry@BMS
    COBB AP ProTune by Bren of ///Bren Tuning
    Akrapovic DP | Helix FMIC | Alpina TCM Flash | Walbro 450LPH Fuel Pump


    "The moment money becomes your motivation, you are immediately not as good as someone who is motivated by passion and internal will." -A. Senna

  13. #13
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    I know I'm bringing this back from the somewhat dead but with the help of MRPerformance in NY I made about 370hp and 502torque on a mustang dyno w 50/50 e85 mix running map 6 I got my dyno papers somewhere at the office
    F30 335i ER DP Custom 3 Inch AxleBack JB4 E85
    380hp 502tq MUSTANG DYNOClick here to enlarge Don't Hate The Car Hate The DriVeR Click here to enlarge

  14. #14
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    Click here to enlarge Originally Posted by Indoos Click here to enlarge
    I know I'm bringing this back from the somewhat dead but with the help of MRPerformance in NY I made about 370hp and 502torque on a mustang dyno w 50/50 e85 mix running map 6 I got my dyno papers somewhere at the office
    @Indoos your sig pic is freaking huge.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  15. #15
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    I know sticky lol I tried doing it at work really quick but it didn't work out for me

  16. #16
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    Click here to enlarge Originally Posted by Indoos Click here to enlarge
    I know sticky lol I tried doing it at work really quick but it didn't work out for me
    I may have to put in automatic signature re-sizing but people can ignore the sigs they want to so not that big of a deal.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  17. #17
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    Sorry lol fixing it tomorrow!

  18. #18
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    1 out of 1 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    @Indoos your sig pic is freaking huge.
    I should make my sig like that, but with my avatar pic.

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