Originally Posted by utm18
At what rpm are you seeing knock? Is it consistently at the same rpm range?
I've done data loging and there is no knock at partial throttle from 2k to 5k in 3rd gear. The knock line is straight as an arrow. At WOT in 3rd gear from 2k to 7k knock appears and increases with the rpm. I pulled the plugs and although the porcelain was white on all 8 plugs on bank #1 with a magnifying glass you could see some pitting which is usually caused by pre-ingnition. Other than that everything looked good.
After running a full tank of Costco 92 octane through the car today in 200+ miles and try some data logging again and see what I get. I still have the GT100 on order and will get it next week.