Another 500whp Stock Turbo N54

Discussion in 'N54' started by [email protected], Nov 28, 2016.

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  1. It seems like 500whp is a normal occurrence for stock turbo N54's these days. While I consider these type of results beyond the safe limits of hardware, it is always fun to push things. This customer came to us and said he wanted 500whp, so that's what he got.

    [​IMG]

    [​IMG]

    A few notes on the car/setup:
    -Boost Addictions custom backend flash
    -JB4
    -Port injection w/e85
    -TFT Inlets
    -MMP Outlets
    -Downpipes
    -Intercooler
    -4th gear pull
    -93*+ ambient temp
    -6at No alpina flash. As you can see by the tq curve the trans wasn't happy at all. On one run it just completely let go.
    -Stock Knock sensor settings
     
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  2. doublespaces

    doublespaces Administrator

    AZ
    2009 E93 335i
    Very nice, what stage pump(I presume your brand) and how many miles on the trans?
     
  3. This car has the fuel-it pi and stage 3 pumps. Idk about the trans mileage, but I think it was pretty low. He had swapped a new one in and did a fluid flush the week before the tune. With a cooler I think it would have been fine. Anything over 180* and the trans wasn't happy. If you can keep a transmission between 140-170* they will live a long time.
     
  4. gingerbreadman

    gingerbreadman New Member

    Any idea how much WGDC at this amount of boost? Just curious to see how hard the turbos were working. Thanks
     
  5. Snelson3003

    Snelson3003 Corporal Vendor

    That is ALOT of timing. Whew! But timing is stable which is amazing - gotta love PI.

    My friend locally maxed his turbos the same way, PWM at 99 and FF at 150, he still has ZERO issue with his turbos. Not a leak or an ounce of oil being burned.

    So who knows, with PI maybe it keeps AFR's nice and solid which in turn reduces the heat onto the CHRA = reliable??
     
  6. FF was 92, pwm was in the 80's at redline, it stayed pretty low until after 5500.

    Peak power was from 47000ish-5200ish which was 10-12* of timing, so less than a bms e85 flash. As boost/cylinder pressure drops, you ramp up timing to try and keep the cylinder pressure up. Standard practice. 14.2* at 6500. 11.8ish afr down low, 11.5 up top.

    Timing is stable due to the vanos profile. Its much different than the BMS OTS flashes. The needs are different in every scenario.
     
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  7. Twisted Tuning

    Twisted Tuning Sergeant Vendor

    397
    running turbos at their limits for extended periods of time is never recommended. People do it, but most of the people doing it only spend 2% of the turbos mileage at that power level. Doesn't mean they are meant to sustain that or will. And no one really monitors Exhaust

    Good numbers nonetheless, @[email protected] any knowledge of what the IATS were?
     
  8. Mike @ XPH

    Mike @ XPH Corporal Vendor

    What is your baseline dyno OP?
     
  9. The pull started at 101* and ended at 111*. This dyno is outdoors in open air, the temp according to the dyno was 96.21* and 31% humidity.

    I don't think we have one for this car, but a FBO+inlets 335is I did on e50 base lined at 310ish i believe on map 0
     
  10. Dang that's hot! IAT were low for that temp. Any idea what fmic he had?
     
  11. I want to say ER, but I don't remember exactly. We had good fan setup, so that helps a lot.
     
  12. awesome numbers, to bad the trans let go.
     
  13. Why no B3 Flash?
    I'd figure at this point in the build it would have already been done.
     
  14. It was an early build, so not able to put the alpina flash on it.
     
  15. Aww, was about to say I'd do it for free for you if you needed it.
     
  16. ATL-IS-N54

    ATL-IS-N54 Corporal

    OP what diff are you using ?
     
  17. Bme30

    Bme30 Lurker

    The op is running an mfactory diff with the standard gearing for an auto
     
  18. Steamboat

    Steamboat New Member

    1
    The baseline was around 450 without the pi set up. As soon as the maps were sorted Justin was able to push the tune harder.

    The Fmic is a vrsf 7". I'm very happy with its performance in the Florida sun, and the wider inlet ID fits nicely with the wider mmp outlets. It's a very tight fit.

    I don't have a b3 flash because I haven't gotten around to it. If you'd like to flash it for free, I'd be glad to accept :)

    The trans has around 2500 miles, with 3 flushes already :-/
     

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