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Title: KFZW/KFZW2 Timing Post by: Bi-turbo on May 03, 2014, 08:51:59 AM Bare with me.
I cant work out how the values in KFZW/KFZW2 relate to degrees BTDC when logged with VCDS. For example KFZW - 191.25 load @ 6520rpm = 12.75 (value in .bin) KFZW2 - 191.25 load @ 6520rpm = 11.25 (value in .bin) VCDS log 6360rpm - 1900mbar - 20.3 deg BTDC Maybe i'm being stupid but i cant get my head around it, if i wanted to reduce or add timing i dont know what the value in the bin equates to if that makes sense. Thanks in advance Title: Re: KFZW/KFZW2 Timing Post by: nyet on May 03, 2014, 09:05:18 AM 1900mbar is not 190 load.
Title: Re: KFZW/KFZW2 Timing Post by: Bi-turbo on May 03, 2014, 09:18:01 AM Thats just kicked me in the face!!!
.9bar is approx 160 load % Closest i have is 159.75 = 0.897.5bar (ruffly) @ 6520rpm which is 19.50 value so that would be my timing BTDC @ that load. I wasnt looking at it right at all. Title: Re: KFZW/KFZW2 Timing Post by: bk56190 on May 04, 2014, 04:12:31 AM Timings depends of KFZW but also of KFDZWKG, DZWOAG, DZWOL. Only modify KFZW/KFZW2 to add/reduce timing.
Title: Re: KFZW/KFZW2 Timing Post by: em.Euro.R18 on May 05, 2014, 11:34:00 AM When load request goes above iop limit and you rescale the load axis. Make sure appropriate changes are made in kfzwop/op2.
Title: Re: KFZW/KFZW2 Timing Post by: Lost on May 06, 2014, 10:41:06 AM Timings depends of KFZW but also of KFDZWKG, DZWOAG, DZWOL. Only modify KFZW/KFZW2 to add/reduce timing. To reduce timing can i just lower the highest column in both KFZW/KFZW2 by say 1.5 deg, or do i have to reduce all the columns? Title: Re: KFZW/KFZW2 Timing Post by: nyet on May 06, 2014, 11:17:22 AM To reduce timing can i just lower the highest column in both KFZW/KFZW2 by say 1.5 deg, or do i have to reduce all the columns? Reduce timing where you need to reduce it. Do not alter cells that don't need to be changed. Title: Re: KFZW/KFZW2 Timing Post by: Lost on May 06, 2014, 12:03:30 PM Reduce timing where you need to reduce it. Do not alter cells that don't need to be changed. I am getting slightly bigger turbos, i will modify my current tune a bit, but i do not know how these new puppies will respond. I am running e85 with some very aggressive timing. I want to reduce overall timing a bit to begin with, to get my boost profile right. So, i will reduce only the last column, at the highest load? Whould that be good enough? Title: Re: KFZW/KFZW2 Timing Post by: nyet on May 06, 2014, 12:21:01 PM I am getting slightly bigger turbos, i will modify my current tune a bit, but i do not know how these new puppies will respond. I am running e85 with some very aggressive timing. I want to reduce overall timing a bit to begin with, to get my boost profile right. So, i will reduce only the last column, at the highest load? Whould that be good enough? Good enough for what? So it doesn't blow up on the first pull? With E85, i doubt you'll have any problems even if you don't touch timing at all. If you didn't numb KR the ECU will make sure you dont run too much timing. Either way, though, you'll want to tweak timing *on every cell* based on logging, not guessing. |