It really shouldn’t come as a surprise that the 2011 Ford Mustang is serious about two things: power & efficiency. The folks at Inside Line decided they would just put Ford’s claims at the 2011 Mustang GT producing 412hp & 390 tq to the test. The dyno video shows a new 5.0 GT strapped in for several pulls on the Dynojet to see just what the true power ratings are after driveline saturation soaks up the promises that would be. The result? Ford’s underrated the pony car yet again.
After seven dyno pulls, the testing staff reported the car consistently produced 395hp at 6600 RPM and 365 pound-feet of torque at 4350 RPM. If you take these figures and realize the parasitic effects of the drivetrain (some 11 to 13 percent loss), the latest Ford Mustang GT with the 5-oh is pumping out somewhere between 438 and 446 horses at the crankshaft. We’re no math majors by any means, but we do know that 438 or 446 > 412 (the advertised rating by Ford).
This isn’t the first time Ford’s underrated the Mustang’s power output for “good” measure and we suspect it won’t be the last. What we have here is a serious motion to kick sand in the face of bow tie fans everywhere; and we’re glad it’s back.