Just converted my n/a 7.3 to a factory ats turbo the conversion went well running good. The only thing was it felt a little restricted then i remembered the timing was at 9.0 btdc. So proceeded to retard the pump between a 1/32-1/16. Boost spools much quicker now and I have more of it which is what i was trying to do.Also you can now hear the turbo at idle. I read on the hypermax website that a 1/16 was 2 degrees also have seen people say that it was 4 degrees.I would think retarding it 2 degrees to 7btdc would be a good start maybe one of the guys who have a meter can chime in and tell me if I'm on the right track.
thanks
thanks