nastang87xx
Well-Known Member
- Thread starter
- #1
Hey guys, I'm chasing a knock issue with my car. Whenever I go close to WOT or at WOT I will get about 2 - 4* of positive knock no matter where I am at in the RPM band. I can put it to the wood at 3000RPM and I'll have knock all the way until redline. It could be at 6500, I'll have knock. The fuel I am using is 91 but with more than enough of Boostane/Octanium. I've also tried mixing 100 octane with that 91 and I get the same results. Now if I go PART throttle and take my car throughout the entire rev range I will have no knock or even timing added. So on one hand I'm thinking it's not false knock but on the other it potentially could be. Looking at my logs, total timing advance at WOT through the entire pull is about 19 - 21*. And again it doesn't matter where I start the pull in the rev range. WOT = timing pulled. Partial throttle = no knock/timing added. I'm really stumped on what to do. Mods are a Corsa X pipe, and a Ford Performance passenger side catch can.
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