2011 392 Challenger SRT8 on the dyno – 531 Horsepower (452 RWHP)! – Road Test TV

Road Test TV – Looks like the horsepower war continues and the Dodge boys have a trick up their sleeve.   According to dyno numbers gathered by Inside Line, the 2011 Challenger SRT8 with its 392 cubic inch (6.4 Liter) Hemi V8 is going to be a handful for the Camaro SS and Ford Mustang.

Even though the 392 Challenger is rated at 470 horsepower and 470 pound-feet of torque at the crank,  it put down an impressive 452 horses at 6200 RPM and 443 lb-ft at 4400 to the WHEELS! Taking into consideration a conservative 15% reduction for parasitic losses from the accessories and driveline, the 2011 392 Challenger is actually making  531 horsepower and 521 pound-feet of torque at the crank.  This is a big improvement over the outgoing 6.1 Liter Hemi.  Hopefully, all production models will be as strong.

To give prospective as to how strong these numbers are, the Inside Line dynoed a 2010 Chevrolet Camaro SS on the exact same dyno.  The result: 370 horses and 343 lb-ft of torque at the wheels (about 435 hp/403 lb-ft of tq at the crank).   The verdict: the new 2011 392 Hemi Challenger is making over 80 horsepower  and 120 lb-ft MORE than the 2010 Camaro SS to the WHEELS!  Hopefully, the upcoming Supercharged Camaro Z28 will more than even the score.


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