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  1. #76
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    Click here to enlarge Originally Posted by Dr. G Click here to enlarge
    The # that I was looking for is the pump+meth and the results were 517whp/458wtq - an upgrade over stock, but I don't see myself putting down $8000 for this.
    What do the RB's do on pump + meth?
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  2. #77
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    What do the RB's do on pump + meth?
    Prob 485-490.

  3. #78
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    Click here to enlarge Originally Posted by themyst Click here to enlarge
    Prob 485-490.
    Sounds about right. Rb's basically have gobs more power down low, but about 25whp less at peak with a bit more torque in Daily driver trim.

    At a drag event the single would have a nice advantage when throwing in some race gas, but it seems like the power curve would suck for other types of track events.
    jb4+fbo+meth

  4. #79
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    Click here to enlarge Originally Posted by themyst Click here to enlarge
    Prob 485-490.
    And on race + meth?
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  5. #80
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    And on race + meth?
    500's. All these 500whp+ dyno sheets are done with race+meth.
    I don't recall a single dyno sheet with RBs that did 500+'s with a reasonable baseline on 93+meth.

  6. #81
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    its been over a year since anyone has done anything rcomparable to me and DZ though right?

  7. #82
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    With enough meth and good nozzle placement you don't need race gas. Click here to enlarge
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  8. #83
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    interesting..

  9. #84
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    Terry put down 495HP/492TQ with e85 and no meth. I don't see why e85+meth can't consistently put down 500HP reliably. According to the compressor maps for the 15T compressor wheel 23+ psi is in the compressor's efficiency range (barely) at midrange RPM, why isn't anyone pushing RBs over 21 psi midrange? I can see that 19psi is probably max at redline and I'm pretty sure that's what all of you guys are running but why not continue to crank up the boost midrange until you quit seeing gains?
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  10. #85
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    Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
    Terry put down 495HP/492TQ with e85 and no meth. I don't see why e85+meth can't consistently put down 500HP reliably. According to the compressor maps for the 15T compressor wheel 23+ psi is in the compressor's efficiency range (barely) at midrange RPM, why isn't anyone pushing RBs over 21 psi midrange? I can see that 19psi is probably max at redline and I'm pretty sure that's what all of you guys are running but why not continue to crank up the boost midrange until you quit seeing gains?
    Thats what Im saying.. this option with sensor and fuel wasnt available when I was running them. I wish someone would..

  11. #86
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    Click here to enlarge Originally Posted by LostMarine Click here to enlarge
    Thats what Im saying.. this option with sensor and fuel wasnt available when I was running them. I wish someone would..
    I ordered my n20 MAP today and my BMS adapter yesterday. I plan to push my Vargas Stage 2s as far as I can, and still see gains. looking at around 23-24 peak with 19psi at 7K. With e85, meth, G5 isolated board and BMS backend flash, I don't see why this can't produce well over 500HP on a DDable map.
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  12. #87
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    Might be too much low end torque, it will be a good way to test how strong the stock rods are.
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  13. #88
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    Click here to enlarge Originally Posted by lulz_m3 Click here to enlarge
    Might be too much low end torque, it will be a good way to test how strong the stock rods are.
    +1 I want to keep low end fairly normal (not really conservative but not crazy), really only looking to hit 23-24 at 5K which is the peak efficiency of the compressor's map.
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  14. #89
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    Click here to enlarge
    2011 335is DCT, moving to Italy, looking for new car friends Click here to enlarge

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    I am surprised people aren't pushing them harder looking at that map. It may have to do with the turbine sizing?

  16. #91
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    Click here to enlarge Originally Posted by rudypoochris Click here to enlarge
    I am surprised people aren't pushing them harder looking at that map. It may have to do with the turbine sizing?
    No, it's those stock exhaust housings and intake tubes. They are huge bottlenecks.

  17. #92
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    huge bottle necks or tiny cojones...

  18. #93
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    Rob RB seemed to think the exhaust runners were fine?

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    Click here to enlarge
    Click here to enlarge 10-02-2012, 11:30 AM



    They are of tubular design and it is quite good. I really do not think the exhaust manifold needs any help really.

    I could see the intake tubing being an issue (stock) but an upgrade to 3" or larger piping would be of benefit. I don't think intake is the end of the world though since the ST guys aren't having issue.

  19. #94
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    ST guys have a much larger turbo inlet pipe. much like most ST kits on other platforms like RB25s, 2JZ etc. I agree though I think new inlet pipes are desparately needed and i'm hoping to get something on while the turbos are being replaced.

    Click here to enlarge Originally Posted by rudypoochris Click here to enlarge
    Rob RB seemed to think the exhaust runners were fine?

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    http://www.n54tech.com/forums/images/icons/icon1.gif 10-02-2012, 11:30 AM



    They are of tubular design and it is quite good. I really do not think the exhaust manifold needs any help really.

    I could see the intake tubing being an issue (stock) but an upgrade to 3" or larger piping would be of benefit. I don't think intake is the end of the world though since the ST guys aren't having issue.
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  20. #95
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    Is there enough room to fit filters directly on the turbos themselves?
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  21. #96
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    Click here to enlarge Originally Posted by lulz_m3 Click here to enlarge
    Is there enough room to fit filters directly on the turbos themselves?
    no




  22. #97
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    Click here to enlarge Originally Posted by lulz_m3 Click here to enlarge
    Is there enough room to fit filters directly on the turbos themselves?
    If you can find a filter the size of a tennis ball, sure. It would also be a major PITA to replace or clean due to location, especially that front turbo.

    Its also much hotter down there instead of the cold side of the engine bay, so keep that in mind.

  23. #98
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    Most ST cars have their filter on the hot side since they usually just run a short pipe off of the turbo and put the filter right on it. I think more flow is more important that the hotter air at that point.
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