Hi All,

I went to a smaller pulley and have been seeing some knock. I know I apparently need a tune, and potentially more supportin mods for a permanent fix. In the interim ive been adding a little bit of e85 to the 93 i normally run. Assuming a true e85 blend from the pump(ranges from 51-83 where i live) I should be running around an e20 blend. Thats about 10% more than pump. It killed about 4* of my 7* of KR and i have none under partial throttle.
I know the car was running rich prior, and this should ammount to requiring about 4% more fuel.

Long story short, is there any major danger in me doing this? Obviously i have to keep the dilution low, but it seems like the ECU should be able to adapt to a 4-5% fueling change.