retarded

General Tuning Questions And Discussions
Carbie
Posts: 15
Joined: Sun Jul 09, 2017 6:21 am
cars: HZ ute 327 chev
VR Senator 215i
02 Monaro LS1

retarded

Post by Carbie »

can anyone explain why my timing drops from 14 degrees to as much as -11 deg when i crack the throttle to about 40%, VS v6 auto, in neutral. No sign of KR. Tia.
Attachments
MY WAGON VS_V6_$51_Enhanced_v1.4b.bin
(128 KiB) Downloaded 259 times
my wagon.JPG
Last edited by Carbie on Sat Apr 28, 2018 4:06 pm, edited 1 time in total.
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vlad01
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Re: retarded

Post by vlad01 »

could be the burst knock function?

Or what I had on the dyno the other day, a coolant temp/ spark offset table. It retarded the timing by about 3-5º across the board once the coolant temps got close and beyond 100c.

I zero'd out that table and also the EST enable temp to max as for some reason it was also pulling 6º in the form of knock retard even though the installed knock sensor flags were unchecked and the ignore table was maxed out. This was in 11P and for some reason a lot of setting were misbehaving but I am pretty sure I know why now.

Anyway I think in enhanced code it should be burst knock or maybe IAT/spark offset table or something like that.
I'm the director of VSH (Vlad's Spec Holden), because HSV were doing it ass about.
Carbie
Posts: 15
Joined: Sun Jul 09, 2017 6:21 am
cars: HZ ute 327 chev
VR Senator 215i
02 Monaro LS1

Re: retarded

Post by Carbie »

thanks for the reply. i have zero'd a few things but nothing to do with knock as there is no knock. I will try that tomorrow though.
thanks vlad1
immortality
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Re: retarded

Post by immortality »

Burst Knock is applied by the PCM on sudden large throttle movements to prevent knock from occurring at a low RPM.
Carbie
Posts: 15
Joined: Sun Jul 09, 2017 6:21 am
cars: HZ ute 327 chev
VR Senator 215i
02 Monaro LS1

Re: retarded

Post by Carbie »

i zero'd burst knock and everything else i could think of today and it still does it
Carbie
Posts: 15
Joined: Sun Jul 09, 2017 6:21 am
cars: HZ ute 327 chev
VR Senator 215i
02 Monaro LS1

Re: retarded

Post by Carbie »

see attached please
Attachments
MY WAGON VS_V6_$51_Enhanced_v1.4b.log
(3.12 KiB) Downloaded 250 times
MY WAGON VS_V6_$51_Enhanced_v1.4b.bin
(128 KiB) Downloaded 243 times
Wade
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Re: retarded

Post by Wade »

You dont zero burst knock out. Use the scaler and max it out. If its set high enough itll never reach that operating temp and therefore never activate. The coolant based timing offsets youll find in the spark tables. Theres also ones for intake air temp
Wade
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Re: retarded

Post by Wade »

heres a bin same as yours that I quickly chucked together for comparison
Attachments
VS_V6_$51_Enhanced_v1.4b.bin
(128 KiB) Downloaded 273 times
VS_V6_$51_Enhanced_v1.4b.log
(2.25 KiB) Downloaded 234 times
Carbie
Posts: 15
Joined: Sun Jul 09, 2017 6:21 am
cars: HZ ute 327 chev
VR Senator 215i
02 Monaro LS1

Re: retarded

Post by Carbie »

thanks Wade, i'll check it out and let you know how it goes, cheers
Carbie
Posts: 15
Joined: Sun Jul 09, 2017 6:21 am
cars: HZ ute 327 chev
VR Senator 215i
02 Monaro LS1

Re: retarded

Post by Carbie »

unfortunately it still does the same thing
Attachments
IMAG4635.jpg
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