Hi, i have a 1990 civic si with a turbonetics t3/t4 turbo on it and its tuned with uberdata. When i drive around, if im only at half throttle or so, the car sounds like its missing(that weird almost bogging sound). When i give the car full throttle a lot of black smoke comes out of the exhaust and the car takes off with full power and sounds fine. Its kinda annoying bc when im just driving around my car sounds like complete crap to the point where its almost embarrasing. I was wondering if anyone could tell me what they think. I probably just need smaller injectors and a new tune or something but i want to hear what you guys think.

thanks

 

Get it tuned by someone who knows what they are doing before you blow it up.