bk56190
Full Member
Karma: +4/-0
 Offline
Posts: 91
|
 |
« on: August 26, 2013, 02:18:19 AM »
|
|
|
Hello Guys  I use water/meth and I want a safe tune in case of the pump dies (I tuned with more timing advance and less fuel) So I would like to switch on LDRXNZK and use KFDZK if more of 1.5° of KR (variable B-kfzk is using to switch between LDRXN and LDRXNZK). Input variable CNOKT = 01, TSWKR = 0 Map KFSWKFZK :  LDRXNZK : 150% between 3500 and 6500tr/min. LDRXN : around 190-200% I log at WOT, more than 1.5° of KR but no load cut :  Please find attached the .ori (1.8T AJQ), can someone please confirm me : - CNOKT : 00x19A7C - TSWKR : 00x16250 If someone could explain me why it doesn't work |
|
|
|
|
Logged
|
|
|
|
|
julex
|
|
« Reply #1 on: August 26, 2013, 07:19:10 AM »
|
|
|
I would simply enable enrichment path on knock, that solves your meth dillema. The more you knock, the more fuel car dumps. I have it set to progresively enrich from my baseline 11.6 AFR without knock to literally drown the cylinders with 10:1 (where I actually just start to misfire, fine by me) once I hit -9 CFs.
I would also modify the ZKLAMFAW to 100 for instant LAMBDA changes without smooting which delays lambda interventions.
With these in place, you tune your car without math flowing for around -6CFs. With meth on you should have close to no corrections which is your goal.
|
|
|
|
« Last Edit: August 26, 2013, 07:23:16 AM by julex »
|
Logged
|
|
|
|
bk56190
Full Member
Karma: +4/-0
Offline
Posts: 91
|
|
« Reply #2 on: August 26, 2013, 07:50:51 AM »
|
|
|
Currently, no more than -7° without water/meth and between 0 and 1,5° with. But i'm fear if I put bad octane fuel...
You enable enrichment path on knock with KFFDLBTS/DLBTS ?
|
|
|
|
|
Logged
|
|
|
|
|
catbed
|
|
« Reply #3 on: August 26, 2013, 09:05:40 AM »
|
|
|
Currently, no more than -7° without water/meth and between 0 and 1,5° with. But i'm fear if I put bad octane fuel...
You enable enrichment path on knock with KFFDLBTS/DLBTS ?
KFLAMKRL EDIT: KFLAMKRL is the target AFR map, and KFLAMKR is factor for KRL. |
|
|
|
« Last Edit: August 26, 2013, 09:56:43 AM by catbed »
|
Logged
|
|
|
|
bk56190
Full Member
Karma: +4/-0
Offline
Posts: 91
|
|
« Reply #4 on: August 26, 2013, 09:21:25 AM »
|
|
|
Maybe I'm wrong but I haven't this map on my file (narroband 512ko). I check into another Audi TT file (APX), and I haven't found it too.
|
|
|
|
|
Logged
|
|
|
|
hammersword
Full Member
Karma: +31/-2
Offline
Posts: 136
Revlimit ECU tuning
|
|
« Reply #5 on: August 26, 2013, 10:01:01 AM »
|
|
|
cut load via the load correction maps in function with knocking
|
|
|
|
|
Logged
|
|
|
|
bk56190
Full Member
Karma: +4/-0
Offline
Posts: 91
|
|
« Reply #6 on: August 26, 2013, 10:08:33 AM »
|
|
|
you mean KFTARXZK ?
|
|
|
|
|
Logged
|
|
|
|
|
julex
|
|
« Reply #7 on: August 27, 2013, 07:19:28 AM »
|
|
|
Maybe I'm wrong but I haven't this map on my file (narroband 512ko). I check into another Audi TT file (APX), and I haven't found it too.
I don't know where that would be in your file, sorry... it is the best method though since it is self regulating and you can still get the most out of engine without meth or even when you get shit fuel... cutting load is just on-off switch, it would work well but a very blunt approach. |
|
|
|
|
Logged
|
|
|
|
bk56190
Full Member
Karma: +4/-0
Offline
Posts: 91
|
|
« Reply #8 on: August 27, 2013, 08:27:50 AM »
|
|
|
I think narrowband files haven't this map.
I can use KFLBTS set to 0.85. With water/meth ON, AFR should be between 12.5 and 11.
KFFDLBTS will be use to enrich with KR (if no water/met). So AFR should be between 12.5 and 11 too.
Fuel cools EGT but don't prevent high KR ?
|
|
|
|
|
Logged
|
|
|
|
|
julex
|
|
« Reply #9 on: August 27, 2013, 12:02:18 PM »
|
|
|
I think narrowband files haven't this map.
I can use KFLBTS set to 0.85. With water/meth ON, AFR should be between 12.5 and 11.
KFFDLBTS will be use to enrich with KR (if no water/met). So AFR should be between 12.5 and 11 too.
Fuel cools EGT but don't prevent high KR ?
Fuel both cools and prevents detonation. The ECU is already preventing detonation by retarding the ignition. The CFs are nothing more than preventive measure taken by ECU in response to signs of impeding detonation, not actual detonation taking place. ECU is pretty aggressive in that too. I've been running on high CFs (4.5 to 9, depending on what I was tinkering with at a time) for about two years, 400whp on 2.7 engine, several hundred WOT pulls and when the engine was taken apart for rods install, there was ZERO sign of detonation inside cylinders. The pistons, after clean up, looked brand new. |
|
|
|
|
Logged
|
|
|
|
bk56190
Full Member
Karma: +4/-0
Offline
Posts: 91
|
|
« Reply #10 on: August 27, 2013, 12:29:15 PM »
|
|
|
Ok, thanx for you advices. I was afraid with high CF like 7-8°  |
|
|
|
|
Logged
|
|
|
|
|
phila_dot
|
|
« Reply #11 on: August 27, 2013, 02:25:32 PM »
|
|
|
Fuel both cools and prevents detonation. The ECU is already preventing detonation by retarding the ignition. The CFs are nothing more than preventive measure taken by ECU in response to signs of impeding detonation, not actual detonation taking place. ECU is pretty aggressive in that too.
I've been running on high CFs (4.5 to 9, depending on what I was tinkering with at a time) for about two years, 400whp on 2.7 engine, several hundred WOT pulls and when the engine was taken apart for rods install, there was ZERO sign of detonation inside cylinders. The pistons, after clean up, looked brand new.
Knock retard only occurs when actual det is detected or during load/speed ranges of adapted knock retard. The amount of retard is based on engine speed and time iirc. |
|
|
|
|
Logged
|
|
|
|
NOTORIOUS VR
Administrator
Hero Member
Karma: +58/-7
Offline
Posts: 1056
|
|
« Reply #12 on: August 28, 2013, 05:50:57 AM »
|
|
|
Yeah, if you're pulling CF's there is a good chance it's knocking.. at 6+ you should be able to hear it from my experience.
|
|
|
|
|
Logged
|
|
|
|
bk56190
Full Member
Karma: +4/-0
Offline
Posts: 91
|
|
« Reply #13 on: August 28, 2013, 06:09:39 AM »
|
|
|
 So if somebody knows how to activate load cut with KR with my file  Maybe somebody has an .ols or .xdf for this ECU ? (8N0906018AB)
|
|
|
|
« Last Edit: August 28, 2013, 06:12:15 AM by bk56190 »
|
Logged
|
|
|
|
|
julex
|
|
« Reply #14 on: August 28, 2013, 11:05:11 AM »
|
|
|
Yeah, if you're pulling CF's there is a good chance it's knocking.. at 6+ you should be able to hear it from my experience.
And that's the point... If CFs are showing up the engine is already retarding towards safe timing so you should not hear it. |
|
|
|
|
Logged
|
|
|
|
|
