Quote:
Originally Posted by scheherazade
A) Does running more aggressive timing make more knock
B) If so, does the knock go down over time
|
Yes
No.
C) Does running less aggressive timing make less knock
D) Does any knock come back over time
Yes
No
I honestly don't know if the DME has the granularity or range to handle every situation a tuned car will present.
I just know it's designed to
try.
With piggyback, the DME is still operating in the same load ranges as a stock tune. For all the DME knows, it is running stock boost/airflow. Which is why additive fuel, TIMING and boost dc adjustments are needed by the associated piggyback. It's a very simple relationship here. Some would have you believe that the DME is a magical black box that just autotunes itself. When that couldn't be further from the case. Just look back the quality of tunes from the pre-CAN days and see how better control/mapping of these additive corrections have made these cars perform/drive.
Shiv