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  1. The G4 does not log low fuel pressure. I don't...

    The G4 does not log low fuel pressure. I don't remember what is under that area. Best to upgrade to a G5 board.
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    With the spring rush & various JB4 firmware...

    With the spring rush & various JB4 firmware improvements I haven't had much engineering time for this. The gears are still turning and I have a list of things to evaluate in the coming weeks. :)
  3. Yes sooner or later we'll sensor support to the...

    Yes sooner or later we'll sensor support to the JB4 logging. :)
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    Looks like your interface is out of date. It...

    Looks like your interface is out of date. It still says "CPS" and thus will apply a CPS formula that should not be applies now that it's used for load. Relog with the current windows interface to...
  5. The G4 is years ago obsolete. Get a G5 upgrade...

    The G4 is years ago obsolete. Get a G5 upgrade for $150, add in the BimmerBoost E85 back end flash map, and make a lot more power. :)
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    FWIW all the single turbo kits seem to have a...

    FWIW all the single turbo kits seem to have a ~1/2pt bank to bank AFR variance at least when reading the factory widebands. It's as if they are targeting it intentionally for some reason.
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    Love those single turbo filters. ;)

    Love those single turbo filters. ;)
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    You would tap the oil filler cap and add in a...

    You would tap the oil filler cap and add in a temporary vacuum/boost gauge to measure crankcase pressure/vacuum.
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    Should work fine but keep in mind it would be...

    Should work fine but keep in mind it would be illegal so only do this if it's a competition race use only car.
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    Yes it is possible. But would be expensive to...

    Yes it is possible. But would be expensive to sort out.
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    Run what you want for flash tools but in a few...

    Run what you want for flash tools but in a few weeks that Cobb will be worth a lot less than it was a month ago. Sell high. :)

    MHD and BB are just flash applications. The tuning is done in...
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    You are limited to whatever Cobb has included in...

    You are limited to whatever Cobb has included in their dataset or your DME type. For the most part everything is there but something as simple as disabling a certain fault code or defining another...
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    What can you do in Cobb that you can't in say...

    What can you do in Cobb that you can't in say MHD? I still have that $3k Cobb "pro tuner" license I bought years ago. I've spent plenty of time with it and still use it for the N55 out of necessity....
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    No, that is not true. You can put the JB4 in...

    No, that is not true. You can put the JB4 in bypass mode (map 0) but then with single turbo firmware it will just send 0% duty cycle to your solenoid and not attempt to control boost. If the JB4 is...
  15. Thread: 7.2s 60-130

    by Terry@BMS
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    7.2s 60-130

    Hit the private track for a couple runs. Best of which was 7.2s on a less than 1% slope. I reduced boost 4psi in 3rd and it hit DTC in 4th further limiting boost dynamically. Despite that the...
  16. Thread: Wedge Flash

    by Terry@BMS
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    The same place we post all of our firmware and...

    The same place we post all of our firmware and flash updates.... :) n54tech.
  17. Thread: Wedge Flash

    by Terry@BMS
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    He used to offer a JB4 back end flash map with 15...

    He used to offer a JB4 back end flash map with 15 degrees advance that some liked. It's obsolete now.

    Best bet is our new MHD based back end flash maps with the new 28.8 series JB4 firmware. Much...
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    Were you able to get the JB4 single turbo...

    Were you able to get the JB4 single turbo firmware working for this? Now that you can adjust duty cycle at each RPM and natively log load I think it would make a good fit. :)
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    You are braver than I am! I would never subject a...

    You are braver than I am! I would never subject a build motor to such low octane. :)
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    All 0 or all 50 to disable. Duty biases effect...

    All 0 or all 50 to disable. Duty biases effect all maps. This is only used when you need to reshape FF relative to PWM.
  21. It can go a bit higher but power doesn't go up...

    It can go a bit higher but power doesn't go up much, and all that heat works against you during longer pulls.
  22. He has an N20 TMAP sensor. With the JB4 and an...

    He has an N20 TMAP sensor. With the JB4 and an N20 TMAP sensor we can control up to 36psi.
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    Currently 8 is 0%, and 50 is +34%. 0 is around...

    Currently 8 is 0%, and 50 is +34%. 0 is around -8%.

    But it will be adjusted to 0 = 0%, 34 = +34%, shortly.
  24. Hmm I heard otherwise. Attach the dynojet DRF run...

    Hmm I heard otherwise. Attach the dynojet DRF run here and I can check that, and overlay it with these runs, for a comparison. I'm also interested in what the correction factor was in that run.
  25. Nice same car comparison!

    Nice same car comparison!
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