Turbos suck!
Too many reasons to despise them...
The GT 500 2015 Mustang has gone back to SC, and it make 675HP/628 lbs torque, at 27 highway mpg
It' a 6.6 liter engine.
Detroit diesel makes the 2 stroke SC + turbo v12 diesel. It's the best engine ever made. They run thousands of hours before needing seals/rings
Turbos run hot/blow seals/clog from carbon, and slow down. They do nothing to increase compression/make power. You need 3-6 of them (worst to best) in line to equal the boost of ONE 671. Actually a forced air induction (hood/cowl scoops) make more power at speed than any turbo I know of.
The concept is cool but the tech end falls flat. Like I said... Gimme a blower any day.
Forty years of building some of the baddest marine engines on the planet, and not a turbo on one of them.
LOTS of blowers tho.