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  1. True you'd just need to tune it a bit differently...

    True you'd just need to tune it a bit differently to match. In the JB4 we have a "spool up" code that PWMs the valve before it reaches the spring value to keep it from opening.
  2. Shrug. I just follow the diagram only with...

    Shrug. I just follow the diagram only with hardlines. Never had an issue running this way up to 3:1. In theory they tell me it should work up to 4:1 but I've never had the need to go that high on...
  3. Why isn't the solenoid running off the 1/8"NPT...

    Why isn't the solenoid running off the 1/8"NPT port on the compressor housing??
  4. Shiv cut a 1.57, ran 10s once, and then the car...

    Shiv cut a 1.57, ran 10s once, and then the car disappeared never to be seen again.
  5. The main issue with C12, C16, etc, is it eats the...

    The main issue with C12, C16, etc, is it eats the o2 sensors. And right before they go out they will start reading wonky at WOT so it can create a dangerous situation.
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    Looks like I made today's post in the wrong...

    Looks like I made today's post in the wrong thread, oops! Here is the setup otherwise.

    http://www.bimmerboost.com/showthread.php?64174-Good-read-on-why-your-turbo-may-be-smoking&p=627054#post627054
  7. I ran 10.8s in a 2001 LS1 Camaro with something...

    I ran 10.8s in a 2001 LS1 Camaro with something like 440whp. But at only 123mph. All 60' lol.
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    I had forgotten about that aspect. But mentioned...

    I had forgotten about that aspect. But mentioned it because of all this talk of how much vacuum the factory PCV is supposed to pull at idle and cruise. My test car isn't setup to test the factory...
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    Sweet! I hope mine works out the same! :)

    Sweet! I hope mine works out the same! :)
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    This is a dedicated race car so don't need to...

    This is a dedicated race car so don't need to reburn the crap for emissions purposes. But that aside, the single turbo intake doesn't generate much vacuum. If it did then I'd replace the intake. :)
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    I think the smog pump is a bust. Just have it...

    I think the smog pump is a bust. Just have it "rigged" to take measurements. Maybe a high quality electronic pump meant for crankcase evacuation would work. But most real racers do belt driven pumps....
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    Rigged up an electronic smog pump to take some...

    Rigged up an electronic smog pump to take some measurements. To my surprise it actually does pull 3-4" of vacuum on the crankcase at idle. Probably less at redline. But the damn thing pulls over...
  13. Not surprised at all. Dealers have no idea how to...

    Not surprised at all. Dealers have no idea how to properly troubleshoot and will charge you $10k in needless repairs for a $1 MOSFET.
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    I think there is the potential for the table...

    I think there is the potential for the table changes to have a small effect on timing drops. But, it's not as cut and dry as you think. For example trebila, who is reporting improvements, also runs a...
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    Spool mode is always disabled. I've logged VANOS...

    Spool mode is always disabled. I've logged VANOS in the past when doing tuning, but not recently. Never had any reason to believe it wasn't following the profile programmed though. In my experience...
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    This is with many different cars over the years....

    This is with many different cars over the years. Some with timing issues, others without timing issues. You can spend all day doing something and think you're making progress only to have the net...
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    FWIW I've spent many hours on the dyno with many...

    FWIW I've spent many hours on the dyno with many cars holding boost fixed and screwing with only VANOS. Make a change, flash, do a pull. Make a change, flash, do a pull. Repeat 200x times. I've found...
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    Nice to see it coming together! If it's running...

    Nice to see it coming together! If it's running well enough to race at SS April 25th I may need to bump one of our other cars and bring the 135i to match up for battle of the worlds fastest N54. :)
  19. I've seen a few 700whp N54s not even get to...

    I've seen a few 700whp N54s not even get to 130mph, lol. :)
  20. I read on their FB that they got rained out. But...

    I read on their FB that they got rained out. But I agree getting good times out of the platform is a lot more expensive than getting dyno numbers. They seem to know what they are doing though so...
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    The JB4 adaption reset will reset the o2 sensor...

    The JB4 adaption reset will reset the o2 sensor adaptions. With the single turbo manifolds mine are always at least 1/2pt apart. Shrug.
  22. Yes I've still got that material. We'll do...

    Yes I've still got that material. We'll do something with it one of these days. Maybe a VM TS 6466 G2 on the E92. :)
  23. My personal opinion right now is that the...

    My personal opinion right now is that the manifold has excellent heat retention allowing the better spool but is limiting flow up top vs a tubular. Basically, what you'd expect.
  24. True, although it's not a huge change. It's...

    True, although it's not a huge change. It's comparable to an MT with 3.08 gears doing 4th gear runs. Over the years I've somehow managed to wind up with a lot of first hand single turbo seat time....
  25. FWIW spool is a little better on my MOTIV kit...

    FWIW spool is a little better on my MOTIV kit than the FFTEC top mount twin scroll PTE 5862 it replaced. But, it's also running a different turbo and I changed the gearing, so it's difficult to get a...
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