Engine bogging down at lower RPM

[nutron]

I ran the car on AMD Technics rollers on the 27th June; it showed that bellow about 2700rpm, the car made more torque without the water/methanol injection. From that point on, the torque was higher and thus the power also.

I am injecting about 1.1 ltr/min but I was suprised buy these results. I have aadjusted the controller to start injecting around 2500rpm now, so hopefully I'll be getting that little bit more out of her.