There is pretty well no powertrain in the world that is efficient enough to only lose 10%, with Porsche typically having the most efficient drivetrains. 12-15% drivetrain loss is more typical for RWD cars.
Just popped over here after checking out the new '23 Corvette Z06 5.5L. According to published data, it's making 121 HP/L. Has about the same redline as this GT350R. I calculated the actual power demonstrated in this video, factoring 15% drivetrain losses, this 5.2L is making 107 HP/L. So I would say GM has done a pretty good job on their new engine, but it's not that far north of what Ford did with the GT350R. Just for funzies, Porsche GT3 RS 4.0L flat-6 makes 129 HP/L, but it's revving to 9,000 rpm. Annnnnnnd... a BMW S1000RR motorcycle making 220 HP/L.
558 hp crankshaft, factoring 15% drivetrain losses for RWD systems. I estimate 18% for AWD, 15% for RWD, 14% for FWD, and about 12% for chaindrive motorcycles (tossed that in for kicks).
@@ezra5485 Thats actually 526hp according to the info that came with my 350R while youre tryin to call someone else a dork. 526hp minus 15% drivetrain loss = 447hp At 474hp to the back tires they're under rating the engine, very common for manufacturer's to meet government specs. So if we do the math with drivetrain loss it works out to approx 558hp at the crank. His guess was alot closer to the actual hp than yours....dork.
