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Author Topic: I want to expand upon KR based fueling in the wiki....  (Read 15190 times)
savages4
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« Reply #15 on: October 04, 2013, 01:00:50 PM »

Cool! thanks for the explanation, I haven't even been using KR just have left it stock, i've been using BTS and LAMFA, it will be interesting to play with this now.
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britishturbo
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« Reply #16 on: October 04, 2013, 01:29:27 PM »

I have been using KR based fueling as the primary pathway for a longtime now... it works very very well if setup right.

But... I do still leave BTS running. This acts as a safeguard for if you are at a low load area for a long time... an example would be 6th gear, cruising but at low boost. Over time things will get hot... if BTS is defeated then you have no safeguard against this.

And on top of this I will have LAMFA setup as well on top of that.

The use of all 3 pathways really helps dial things in under all driving conditions.
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ddillenger
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« Reply #17 on: October 04, 2013, 01:33:13 PM »

Mine is pretty much identical to Jareds. That way BTS is still active at low loads and RPM's where knock isn't going to be driving fueling.
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« Reply #18 on: October 04, 2013, 06:28:36 PM »

Def not pointless to taper in kr control of fueling.  I don't want it used down low, so I don't allow it.  If the map was pointless it wouldn't exist imho.
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Snow Trooper
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« Reply #19 on: October 04, 2013, 08:24:20 PM »


2) change ZKLAMFAW to "100" FFFF. This is very important. Without this, the lambda requests are filtered through time filter and new requested lambda takes time to take effect, as much as 1-2s. If you leave it in stock form, the KR fueling has no chance to work properly as the requested AFRs are severely delayed and you'll be spiraling into more and more knock unless you put low AFRs into table... but that's going to biet you when in different gears/longer pulls. With it being FFFF, it is an instant change. No longer nice and flat AFR curve though, the ECU really starts to work on proper fueling with this in.


I have not changed this and have never noticed a fueling delay with kr corrections or fueling in general.  I also do not remember ever covering this before.  I was under the impression it would possibly delay LAMFA (driver input) switch over, but even then I have never experienced it.

I am going to max it this evening and see what changes.
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julex
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« Reply #20 on: October 05, 2013, 08:34:46 PM »

I have not changed this and have never noticed a fueling delay with kr corrections or fueling in general.  I also do not remember ever covering this before.  I was under the impression it would possibly delay LAMFA (driver input) switch over, but even then I have never experienced it.

I am going to max it this evening and see what changes.

http://nefariousmotorsports.com/forum/index.php?topic=2637.0
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Snow Trooper
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« Reply #21 on: October 05, 2013, 09:00:09 PM »

Thanks, forgot about it.  I never defined it in my xdf.

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julex
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« Reply #22 on: October 07, 2013, 07:49:12 AM »

Thanks, forgot about it.  I never defined it in my xdf.



It makes a big difference.
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Snow Trooper
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« Reply #23 on: October 07, 2013, 09:27:14 PM »

Not sure whats up with my single turbo car I am not seeing any change other than more active afrs through transitions.  which makes sense... but no in the speed in which the change in the fuel coming in vs boost/throttle/rpm/etc.

the car actually feels happier though, so thats awesome.
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