You may have noticed the big announcement that ROUSH Performance made last week: that our all-new 2015 ROUSH Stage 3 Mustang is producing 670 horsepower and 545 lb-ft of torque. That’s an incredible 235 horsepower and 145 lb-ft over a stock 2015 Ford Mustang 5.0L.
With 134 horsepower per liter, the 2015 ROUSH Stage 3 Mustang overshoots the competition with the most horsepower per liter when compared to Dodge’s most powerful offering in the segment (114 horsepower per liter) and the 92 horsepower per liter rating of another well-known supercharged 6.2L GM engine in the segment.
Power is important, but high horsepower numbers don’t mean nearly as much if you’re trying to move a ton of weight. The RS3 is again at the top of the ranks with the lowest weight per horsepower of the competition (approximately 5.70lbs per horsepower) compared to an estimated 6.32lb/hp* and 7.10lb/hp respectively.
– See more at: http://www.torquedmag.com/2015-roush-stage-3-mustang-670-hp-on-tap/#sthash.Vzt4t6cz.dpuf
Thanks for reading.
Tim
#Roush