BMW M3 Forum
BMW M3 Forum BMW M3 Gallery BMW M3 Reviews BMW M3 Social Groups BMW M3 Chat M3Forum Sponsors >>
Loading


Mobile M3forum
Go Back   BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X) > BMW M3 Discussions > E46 M3 (2001-2006) > Coding and Tuning
Tire Rack Buy Winter Tires Now!
Not a member? Register Now!
Register Gallery All Albums Garage Search Today's Posts Mark Forums Read Calendar FAQ

Coding and Tuning Discuss all avenues of coding and tuning here!


Reply
 
Thread Tools Display Modes
Old Fri, Jan-17-2020, 07:13:48 PM   #231
d_cleverzz
Registered User
 
Join Date: Jan 2020
Posts: 1
Reputation: 0 d_cleverzz is on a distinguished road

United States




Default Re: Mapping for Burble & Pops..

I have to revive this old thread. Hopefully people are alive and can help.
First off, I’d like to thank everyone’s suggestions and work on this thread.

So I have spent a total of about 7 hours trying to get these silly burbles as per my friends request. I am getting frustrated now.

Yes, of course I retard timing in low load (rf) area of the minimum injection, as it was the only ignition table I could find that would make sense and it was also the one you suggested. As for, K_DYN_SA_TSPERR I set it to both 0 and 255 with not much success but found Out that you guys suggested that 60 seconds was best, idk why. Either way, with this setup, 60 seconds, and whatever ignition retard I chose, the car barely pops and it does it whenever it wants or with slight throttle tap, but even then, it can be random. In this state, it seems to only to disable overrun fuel cut (injection fuel on throttle close) for a split second. So on off throttle, it'll hold ignition retard but there's no fuel. At first, I thought maybe it was too rich, so I leaned up the fuel table in low load "(rf), this didnt seem to work either.

Now, when increasing timers in KF_SA_TIME_TMOT_N40, the car will conitnuously have a silent "gurgle." but no ignition retard, even with the previous settings. So... with the increased timer, it is injecting fuel as it "should" but now no longer retards timing.
Setting this to stock, I evene change tables like KL_SA_N40_HYS_GANG, KL_DYN_SA_DPWG_SP, and KL_SA_N40_TMOT to 8000 rpm in all gears to try increase the hysteresis where overrun happens so we never exceed the threshold. Same thing occured, dumps fuel, get barely audible gurgles, but never ignition retard, even with the same settings as before.

So in conclusion, I'm finding only one of the two is happening at once, either ignition retard\no fuel, or no ignition retard\but injecting fuel. I cannot figure out what is not allowing the two to happen together.

Ive read, and also experienced, this motor is sensitive to EGTs, when getting ignition retard, coolant temp rises to 97 degrees fahrenheit, when at a stand still.
Never had this with any other motor. Im sure if it was injecting adequate fuel, it would supress this situation.


I am wondering if there a config switch somewhere or if possibly EGT monitoring is preventing from these two events happening simultaneously.
I know this possible, RKTunes is a great example that these motors can run this sort of stuff aggressively. I cannot find that tiny secret that "unlocks" it.
Jump to top d_cleverzz is offline   Reply With Quote
Sponsored Links
Register now and remove these ads
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT. The time now is 02:54:22 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
M3Forum.com and M3forum.net is in no way sponsored, endorsed or affiliated by or with BMW NA / BMW AG or any of it's subsidiaries or vendors.
BMW and M3 (E90 M3 | E92 M3 | E93 M3 | E46 M3 | E36 M3 | E30 M3) are registered trademarks of BMW AG.
M3Forum Terms of Service
Copyright 1999-2017 M3Forum.com
Discussing Mapping for Burble & Pops.. 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)