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  1. Replies
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    E82/E88: Did I just accidentally miss a 9000RPM N54 :)...

    Did I just accidentally miss a 9000RPM N54 :) Show me the link please :)
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    E82/E88: Even if the rev limiter would be removed, the...

    Even if the rev limiter would be removed, the engine would not rev much higher. But yes, also the piston speeds get high so that rev limiter should be set reasonable also for the longevity reason.
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    E82/E88: 8.5k would be a nice +18% on 7200rpm. However,...

    8.5k would be a nice +18% on 7200rpm. However, the head does not flow enough for the stroke and it will choke before 8k. The power can increase until the flow exceeds sonic speeds when the power...
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    E82/E88: It is not that people would not need more power,...

    It is not that people would not need more power, but that N54 is not a high revving engine and it cannot be transformed into one either.
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    E82/E88: The head does not flow enough to enable very high...

    The head does not flow enough to enable very high revs.
  6. That's the difference between a businessman and...

    That's the difference between a businessman and an enthusiast. Wedge has been spending a lot of his time for free or for random donations. It is not sustainable to work like that due to the...
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    The intake valves don't flow enough to enable...

    The intake valves don't flow enough to enable high revs. There is a very limited space for both increasing the lift and/or intake valve diameter. The bore is small for fitting big valves to the area...
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    Anyone fabricating one?

    Anyone fabricating one?
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    The springs are capable of 10k. The head is not....

    The springs are capable of 10k. The head is not.

    Springs are the easy part.
  10. You cannot just compare 3" vs 3.5" straight pipes...

    You cannot just compare 3" vs 3.5" straight pipes if you are running mufflers. A 3.5 inch muffler flows a lot better than the 3" muffler of the same brand. That's why in the real world comparison...
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    E30 FBO map ok for stock car w/E50?

    Could the Cobb E30 map be used with an unmodified stock car and E50? I saw the logs, and there were no ignition corrections in those few logs that I saw. I believe the fuel scalar should be adjusted...
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    Sticky: Could the Cobb E30 map be used with a stock car...

    Could the Cobb E30 map be used with a stock car and E50? I saw the logs, and there were no ignition corrections in those few logs that I saw. I believe the fuel scalar should be adjusted up though to...
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    550i clutches have been holding fine. I don't...

    550i clutches have been holding fine. I don't know how much torque they have been running though.
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    550i clutch is an upgrade retaining DMFW - no...

    550i clutch is an upgrade retaining DMFW - no chatter and it holds a lot of torque.
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    The no-rattle solution would be 335is / 550i /...

    The no-rattle solution would be 335is / 550i / 650i clutch.

    At extreme power levels it may require turning misfire detection off, but it would not be a big deal.
  16. Great news!

    Great news!
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    Respect. Bigger turbos would increase lag and...

    Respect.

    Bigger turbos would increase lag and with the stockers you have a very responsive daily driver which seems to be very fast as well. I'd upgrade the tired stock plugs and remember the...
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    AFAIK N54 rod is 135mm, N55 rod is 145mm

    AFAIK N54 rod is 135mm, N55 rod is 145mm
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    Are these lighter?

    Are these lighter?
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    Stock ratio is only 1.506.

    Stock ratio is only 1.506.
  21. Boost is better.

    Boost is better.
  22. Thread: HPFP Tease

    by 654
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    3,207

    Good to have the news. I prefer this over PI but...

    Good to have the news. I prefer this over PI but I was wishing to get rid of my tired HPFP and stop worrying about notorious stock HPFPs for good. I guess its challenging to R&D an upgraded HPFP. I...
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    Is it the pitch of the sound that annoys people...

    Is it the pitch of the sound that annoys people in the chatter? Engine is more noisy than the chatter, so it cannot be the volume of the sound, right?

    I've used to the chatter when it comes to my...
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    Stock turbo MBT is at a very high advance level...

    Stock turbo MBT is at a very high advance level because the stock frame twins cannot take big boost and advance is the way to make power.
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    Stock flywheel? Flashes don't cause misfires,...

    Stock flywheel? Flashes don't cause misfires, stock flywheels do beyond a certain power level.
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