Hmmm. some thoughts from someone living at 5300ft. I can't get enough air up here, and the last thing I need to do is richen up the mix. I've got more fuel than I know what to do with, which was confirmed when I was dynoing the car w/wide band O2 sensor in place.
I thought that running on the rich side of stoic. was going to lose HP compared to running lean. Lean means more HP and cleaner running as long as the air volume remains the same, up to a point, like when you run too hot and melt a piston or plug
I though that our cars ran rich to begin with and the goal here was to lean out the mix for more of vitamin HP. Since this mod does not increase airflow any, how is more fuel going to help? Any physics guru's out there want to comment on this?
I don't doubt that the resistor makes a difference, in fact it's been well documented to work very well with the Zetec guys. In fact, some of them even made a switch to turn it "on" and "off" due to the fact that after a while the car would not run as well w/the resistor in place. They were using it more as a means to advance ignition timing, which will make more HP, as proven by the Superchip.
I think the KKM "heatsoak" problem is more to do with the fact that the KKM is able to breath in more HOT air than the stock, shielded intake can. We know that hot air is less dense than cool air. Less density = less O2 per given volume, which means less HP. With the restricted breathing our cars already have, a little increase in temp can have a dramatic effect on performance.
Also, to address your KKM concerns, it's not the KKM that leans the mix out, it's the fact that the KKM consistanly allows higher intake temps than the stock airbox that causes the lean condition. The higher the intake temp, the leaner the computer makes the mix (less air needs less fuel).
I'm NOT arguing the final result here, just the logic you use to arrive at it.
