All Things Mk5 > Performance Modifications
Revo SPS settings
Dan_FR:
The calculated timing pull, or correction factor ,is based on the noises the knock sensor is picking up, so even at 3CF the knock sensor is picking up a resonant frequency that indicates that there is a small amount of knock. I the does not mean that anything up to 11 is ok, it means that the higher the number, the more severe the knock is.
Graph states first run is also B9 and the only change is timing? Which would suggest that at the rpm where peak power is measured, you were able to run more timing. Have you looked at the actual ignition advance at the peak hp as well as the CF?
jasam:
yes I checked igntition timing at peak maf g/s, dont know exactly numbers now.
I thought igintion pull are calculated from egt, iat and some other stuff.. As EGT readings arent correct, after engine/map isnt standard.. and if EGT is one parameter for calculation timing pull, it was logically to me thinking that timing pull is just preventive measure before real knock occure. But if thats real knock as you said .. then timing pull is serious thing.
this is from revo sps manuals, and thats reason why I thought it was all calculated, not real knock.
Dan_FR:
EGT calculation is surprisingly accurate until you change turbos
That extract explains it perfectly, the timing pull is based on the knock sensors sensing when approaching or having reached some pre-detonation. Obviously the factory knock calibration will be cautious and you will get some timing being pulled before actually getting in to knock
jasam:
Ok, what that means, if I have k04 conversion, and see -3deg timing pull, is that mean that isnt real knock? Does all numbers in ignition pull doesnt show real knock?
Sorry, my english isnt perfect so I didnt get it
Dan_FR:
What it means is, the ECU has either sensed that you are approaching knock, or are starting to get some knock, isn't happy with it and it is pulling back for safety.
It doesn't matter whether you actually get knock at this point, this is the pre-determined safety mapping within the ECU, and they will all pull back once the knock sensor detects thee harmonic frequencies.
As far as I know Revo don't alter the factory parameters for knock sensing
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