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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Me Vs 140mph trap GTR.



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      05-05-2014, 02:53 AM   #1
aflatau
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Me Vs 140mph trap GTR.



As you can see in this video, I am still having that shift bog issue. So who do I have to pay to get this resolved? I am shifting as fast as I can but the DME is delaying.
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      05-05-2014, 03:13 AM   #2
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This is with NLS?
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thanks to MGallop
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      05-05-2014, 06:02 AM   #3
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amazed that you kept up like that. You are fbo w/o meth?
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      05-05-2014, 06:37 AM   #4
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I believe aflatau is running a big single turbo. OP - are you lifting to shift?
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      05-05-2014, 07:01 AM   #5
aflatau
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Yes lifting to shift, NLS didn't help that much at all. I turned it back off.
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      05-05-2014, 07:01 AM   #6
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Nice
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      05-05-2014, 08:37 AM   #7
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You can verify with @Iceberg3232, but I think my latest flash took care of his launch and post shift bogs.
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      05-05-2014, 09:23 AM   #8
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You've got way more power with that kinda pull but the GTR's DCT shift is so fast you just won't catch it that's why they are this fast. Moreover i think you're slightly lagging on post shift with that turbo size.
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      05-05-2014, 09:51 AM   #9
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Quote:
Originally Posted by WedgePerformance View Post
You can verify with @Iceberg3232, but I think my latest flash took care of his launch and post shift bogs.
I can verify the post shift bogs for certain are gone - haven't had more than 3 launches with the new flash so I will report back after. Likely fixed via a torque load table adjustment.
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      05-05-2014, 10:03 AM   #10
aflatau
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Quote:
Originally Posted by WedgePerformance View Post
You can verify with @Iceberg3232, but I think my latest flash took care of his launch and post shift bogs.
Which table did you alter?
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      05-05-2014, 10:09 AM   #11
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Quote:
Originally Posted by aflatau View Post
Which table did you alter?
Speak with Wedge...
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      05-05-2014, 12:14 PM   #12
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OP, I feel your pain man lol. Get it fix and ask for a rematch
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      05-05-2014, 01:14 PM   #13
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if ur 335i was 6AT it will pull on that gtr, how many awhp for the gtr?
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      05-05-2014, 02:25 PM   #14
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OP, please post back if you find a solution. I also usually feel a post-shift bog. I used to attribute it to clutch slip, though I'm not putting down that much power where that is necessarily the case.
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      05-05-2014, 03:03 PM   #15
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I was gonna say that the flash + JB4 got rid of my post shift flatline but I'm pretty sure that was 6AT related.
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      05-05-2014, 03:12 PM   #16
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Nice!
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      05-05-2014, 03:56 PM   #17
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bog is normally related to toque limits or demand on the transmission, so if you can get the torque limit / demand high enough to prevent torque related issues you will eliminate the bog. I've also noticed some timing related issue in fifth gear at over 5500 rpm where the car will just start pulling timing... looks like misfire or knock events... This was more noticeable with a lower load flash as I was trying to reduce post shift timing drops. Not something you can test for often, but for higher whp cars... a 150 mph test run only requires a 1 mile stretch of good clean highway in Mexico.
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      05-05-2014, 04:34 PM   #18
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Or Canada, it's a bit closer.
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      05-05-2014, 08:59 PM   #19
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damn nice!!!!
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      05-05-2014, 11:46 PM   #20
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omg, looks and sounds awesome congrats, now I will never get revenge for last summer shit.
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      05-06-2014, 12:07 AM   #21
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How much power on that gtr?
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      05-06-2014, 03:04 AM   #22
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Looks good.

You seem to be squirming around a little in the arse end

What speed was that second roll on from?
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