I rev the car to 7,300rpm max, anything higher you will run into issues.
His car has a small taper in power up top because he is using a lighter spring in the actuator. I just shipped out 4 turbo's today all with my upgraded actuator pre-installed and pre-loaded exactly how I prefer to hold boost all the way to redline. MS67's car is about 3-4psi short up top compared to the other cars I tune, which is where the big power comes in. On MS67's car I have the timing coming up when boost comes down to make up for some of the power. If we can get the boost and some good timing in there it would break 290whp.
His car has a small taper in power up top because he is using a lighter spring in the actuator. I just shipped out 4 turbo's today all with my upgraded actuator pre-installed and pre-loaded exactly how I prefer to hold boost all the way to redline. MS67's car is about 3-4psi short up top compared to the other cars I tune, which is where the big power comes in. On MS67's car I have the timing coming up when boost comes down to make up for some of the power. If we can get the boost and some good timing in there it would break 290whp.