I posted a video on my YouTube channel recently and under "Mr. Rhinopolis", and if you skip to 4:20 in to the video (I talk way too much in my videos) then you can jump right to the action.
Perhaps what I do in that video will give you a metric that you can use to decide if a hybrid turbo is enough power for what you are wanting out of your ST?
Perhaps what I do in that video will give you a metric that you can use to decide if a hybrid turbo is enough power for what you are wanting out of your ST?