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Old Sun, Jun-24-2018, 04:17:46 PM   #1
redzonepva
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Default POPCORN Limiter-soory double post possible delete?

Hello everyone,

I introduce myself I am Paul, I have a M3E46 with a MSS54HP with 32500 software and MAP sensor?
I always asked the question, can we activate the popcorn limit (hard limit RPM) on the S54, it's pretty easy to do it on siemens MS41-MS41.1-MS41.2, but I do not do not find how to do that kind of thing on the MSS54.

sorry for my english

link video for example


Last edited by redzonepva; Sun, Jun-24-2018 at 04:35:47 PM.
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Old Sun, Jun-24-2018, 04:28:54 PM   #2
redzonepva
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Default Re: POPCORN Limiter is possible on the S54 with the MSS54

sorry for my double post ,
can a moderator remove my double post please, I'm new here, and I do not know how to delete a post, sorry
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Old Mon, Jun-25-2018, 05:58:44 PM   #3
geargrndr
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Default Re: POPCORN Limiter is possible on the S54 with the MSS54

Shouldn't be too hard.

Make sure the DBW RPM limit table and the master limit value are all set just above whatever limit you want, then on the WOT injection table set it to zero at your desired RPM point.

From browsing the MS4x stuff looks like you want to / need to also turn off hysteresis, otherwise it'll set the RPM down until you re-accelerate?

In my file (2801) I have a K_N_HYST at 5CE4 which is set to 100 by default. I guess you'd turn that off (in order to force the 'bounce')?

Do not consider this a how to or DIY instruction, merely musings from a quick look...
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Old Mon, Jun-25-2018, 06:20:43 PM   #4
redzonepva
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Default Re: POPCORN Limiter is possible on the S54 with the MSS54

hi
where is the DBW RPM limit table and the master limit value please??

KL_N_MAX it's this??
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Old Mon, Jun-25-2018, 07:22:17 PM   #5
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Default Re: POPCORN Limiter is possible on the S54 with the MSS54

You apparently missed the part where I said this is not a DIY instruction.

But other things I note from a quick look...

There's also a K_N_TBEGR limit (which I'm not sure what it is...)

And the Dyno limit - which I do know what is - and which probably is going to be involved since I'm sure you want to do poppety-poop noises when you're standing still I imagine.
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Old Thu, Jun-28-2018, 10:21:05 PM   #6
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Default Re: POPCORN Limiter is possible on the S54 with the MSS54

K_N_TBEGR - RPM which when exceeded increases a counter in the ECU to deny warranty claims
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Old Thu, Jun-28-2018, 11:00:39 PM   #7
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Default Re: POPCORN Limiter is possible on the S54 with the MSS54

Quote:
Originally Posted by tr4ck_m3 View Post
K_N_TBEGR - RPM which when exceeded increases a counter in the ECU to deny warranty claims
Cool. So basically its a "record a money shift" setting.

Not really useful to us now that everything is out of warranty of course, but still. I always like to learn more obscure facts about these things.
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Discussing POPCORN Limiter is possible on the S54 with the MSS54 in the Coding and Tuning Forum - Discuss all avenues of coding and tuning here! at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)