Lost Torque but Gained HP

[Sato]

Originally Posted by welding rod

I am running 225 ml per minute on a 2.0 liter Ford Focus at 10 pounds of boost. I am using 25% methanol / 75% distilled water. Using Aquamist 1S and triggering at 7.5 PSI. My open loop AFR is 12:1.

On back to back dyno runs with and without water, no other changes, I lost about 25 + foot pounds of torque below 4K RPM, no change at 4K, and then a consistant gain of 3-5 HP above 4K to redline. My intake air temperature sensor is after the water jet so my timing is advancing slightly with the decreased temps.

Since then I have added a pound of boost and advanced high load timing 2 degrees across the RPM range, but I still have a very obvious lull in the power at 3-4 K that I would like to tune out.

I have full control over the OEM computer with my SCT Pro Racer tuning software.

Any suggestions?

I am NO expert for sure . The jet may be too big for your application and or sprayed sooner than needed. Maybe a smaller jet at the same trigger point will work better.
I run a 1s and use a 1mm jet. I was getting a detonation signal and found out I was trigering it too late[too high psi boost] and I never bog. No two engines are the same of course but try to figure out what the 1s is lacking first by tuning it in the best you can before going to a much more complex system. In the end for me at the moment I am very happy with the 1s system,,for now. My car goes like stink in any weather with no detonation.