Cadillac News, Concepts, Future Models, Rumors and more Discussion, Spy Shot Indicates Twin Turbo for V3? in Current Cadillac Vehicle Discussion; http://www.autoguide.com/auto-news/2...ged-power.html
...maybe Caddy has something different up it's sleeve other than sharing the supercharged LT4 Z06 engine?
Maybe they are testing both supercharger (LT4) and turbo motors. There was a previous spy video that sounded very supercharger like to me. Will be interesting to see what they choose. I just want a manual option with whatever it is!
They might be testing both. Turbos do have the advantage of a flatter torque curve with advance wastegate control which is better for mid range power. Blowers have the advantage of better offline performance by building boost earlier/faster and with AFM will have better gas mileage than a twin turbocharged motor and the motor will weigh less. With the improved airflow of the screw type blower on the LT4 GM is getting very close to the efficiency of a turbo with a much wider range of operation at that efficiency that turbos can't match. My bet is the gas mileage will win the battle which will most likely be the LT4.