Quote:
Originally Posted by troek
out of curiosity what did you modify to reduce the knock between those 2 data logs? im still learning about all this stuff but it seems weird to see knock all the way across the rpm range.
Taken from http://www.zzperformance.com/blog/ab...ock-retard-kr/
"False knock is characterized by a sharp spike to an immediately high value of KR followed instantly by the KR Recovery Rate. It doesn’t grow with engine RPM or load, it jumps to a high value on throttle input and then recovers to a low value, or zero perhaps, as engine RPM continues to increase. Note that this is exactly opposite to the characterization of REAL KR. Remember, knock is simply specific noise detected by engine microphones. Because it happens to fall with in the frequency of real KR does not necessarily mean that it IS real KR." |
Only difference between the two logs is an oil catch can, same tune same condition same day same road and taken no more than 30 minutes apart.
Notice how the FLKC registered increases after each up shift.
The below log was made runing pretty much the same exact tune in very similar conditions (slightly cooler ambient temps) before the OFT update aside from slight difference in the MAF scale.
http://datazap.me/u/solidone/stg1-20...-12&zoom=3-311
Very helpful link BTW. Thanks. None of the hardware was touched from this log vs the more resent logs in my last post, so I'm not sure where I could have something causing a false knock...