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  1. Replies
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    "fast" is relative. There isn't even my kind of...

    "fast" is relative. There isn't even my kind of "fast" on the bmw market :awesome:
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    If you want to go fast for cheap, the BMW is the...

    If you want to go fast for cheap, the BMW is the wrong platform. Reason #238904723423 I'm building an exocet.
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    those dynos arent in the same gear, and arent...

    those dynos arent in the same gear, and arent even comparable. you can tell that because of the retarded spool difference. do it again.
  4. All stock converters are tiny. The ones in 8...

    All stock converters are tiny. The ones in 8 speeds are ever smaller (rpm), because the torque multiplication and high stall speeds aren't needed, because mechanical advantage is provided by extra...
  5. mph is right where it should be. first gear is so...

    mph is right where it should be. first gear is so short that with the tiny stock torque converter, even with drag radials, you can't hit the tires hard enough to get the car to move. i bet you with a...
  6. Its massive weight, that's why. The fat $#@!...

    Its massive weight, that's why. The fat $#@! weighs 350 pounds more then the old model at an astonishing 3526 pounds.
  7. Middle rider didn't even tuck. Pretty sure he...

    Middle rider didn't even tuck. Pretty sure he just lacked the ability to keep up with camera bike + looked like a pretty big guy on there. The camera bike is a 200-210hp bike, quick for sure!
  8. Moar intake = moar better.

    Moar intake = moar better.
  9. A pressure differential does not intake...

    A pressure differential does not intake backpressure make. There is no doubt that there is a differential there, however backpressure is a technically incorrect term, as there is no opposing force -...
  10. I'm not confusing anything, there is no opposing...

    I'm not confusing anything, there is no opposing pressure, just a limit to laminar flow. Backpressure is present in the exhaust, because the turbos are physically pushing from one side - there is no...
  11. resistance to flow is not back pressure. /thread

    resistance to flow is not back pressure. /thread
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    No.

    No.
  13. Replies
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    There isn't a good vacuum source. You can vent...

    There isn't a good vacuum source. You can vent the pressure to atmosphere (best solution) or run a stock style return pcv.
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    2: No. There isnt sufficient velocity in the...

    2: No. There isnt sufficient velocity in the system to have a meaningful effect. Even an open header evac on a race motor will only pull 1-2 inches, anything past a header wont pull any vac at all.
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    20cfm is an absurd amount of flow to evac the...

    20cfm is an absurd amount of flow to evac the bottom end of an N54. You overdrive the pump and set a vac relief @ X vacuum. Since you need proportional flow to RPM, it's a complete nonissue as the...
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    How I did mine on the camaro. Easiest reversible...

    How I did mine on the camaro. Easiest reversible thing. New oil cap is cheap if you don't like it.
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    It's a moroso. Honestly the easiest way to pull...

    It's a moroso. Honestly the easiest way to pull crank vacuum is to put a bung in the oil fill cap.
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    Here's an early revision on how mine was set up....

    Here's an early revision on how mine was set up.


    https://www.youtube.com/watch?v=HLJrB1OmxIQ
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    Correct. Its purpose isn't to stop oil leaks,...

    Correct. Its purpose isn't to stop oil leaks, it's to make power. Stopping leaks is just a byproduct. 16 inches is about the limit for a race motor, and 14 for a street motor since past that it can...
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    My GZ pump used to pull 16 inches, is a pretty...

    My GZ pump used to pull 16 inches, is a pretty serious deal. It made 30hp over a vented pcv on my 430 inch small block (n/a). Since lower crankcase pressure is probably much larger in the N54's case...
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    A quality (race) vac pump will pull 14-16 inches...

    A quality (race) vac pump will pull 14-16 inches of vac, so there's that... outlet size doesn't matter, measure actual pcv vac at 7k rpm.
  22. For Sale: 25mm dirt bike/quad filters. Not necessary but it...

    25mm dirt bike/quad filters. Not necessary but it keeps oil spray from happening.
  23. For Sale: 2008 Sedona Red 135i (Orange) for sale, LSD! 5k+ in tasteful Mods

    Moving to KS, working on race car project to replace this one, and have too many vehicles so this one must go.

    Sedona Red, 97kish miles. 6 Speed auto, every option available except for the red...
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    -_- find a new tech. Torque converter spacing is...

    -_- find a new tech. Torque converter spacing is set by the gap between the pads and the flexplate, where you add or remove shims if necessary to get the gap where you want it. Of course the oem one...
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    There is supposed to be a gap, otherwise the...

    There is supposed to be a gap, otherwise the transmission pump gears would bind. The converter moves freely on the shaft, you seat it, then you bolt it to the flexplate.
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