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Watch Out: 2010 Roush Mustang Stage 3 And 540RH

Staff Report

Roush shows it can serve up both velvet and hammer.

09-17-09: For years Roush has heard their cadre of Mustang owners on forums and at shows around the country saying, “Give us a forged bottom end supercharged Stage 3!” Other’s have said, “Just give me a plain Mustang GT with a big fat supercharger on it and leave off all the extra stuff!” Well today Roush has proven once again, it listens to its customers.

Today Roush has unveiled a pair of new 2010 Mustang models, both with a romp stomping 540 hp hand built 4.6 liter V8 with a massive Roush-Eaton TVS intercooled supercharger sitting on top. Starting with the same engine that made its debut in last year’s Roush P-51B Mustang, the new power plant pumps out 30 more horsepower and now twists the earth with 510 lbs of torque.

Roush can warranty this engine for 36 months / 36,000 miles with this kind of power because they install forged aluminum pistons with an increased dish to lower the compression ratio from 9.8 to 8.6, forged steel H-Beam connecting rods and a forged steel crankshaft. The fuel rails are changed, as are the fuel injectors and an upgraded fuel pump. Roush also upgrades the clutch and includes a custom-calibration for the ECM.


Carrying on a tradition, The 2010 Roush Stage 3 Mustang will once again take its rightful place atop the hierarchy of Jack Roush’s lineup. The Stage 3 comes fully-loaded with the Roush body components, resonator exhaust, massive four-piston front brakes with 14-inch rotors, and painted rear calipers with slotted rotors. Visually, he Stage 4 gets a slick new upper billet grille which removes the fog lamps and streamlines the appearance of the new Mustang while improving cooling air flow area.

“The ROUSH Stage 3 Mustang has traditionally been among the halo vehicles of our lineup and I’m really proud that it sits atop the pecking order once again,” said Jack Roush. “This new iteration of the Stage 3 represents our highest horsepower and most sophisticated ROUSH Mustang yet, and is sure to resonate among our fans.”

Interior enhancements include custom Roush leather seats with an embroidered Jack Roush signature, machined four-piece performance pedals, integrated ROUSH lettering in the illuminated sill plates, short throw shifter with choice of black or white ball, and a Stage 3 badge with the car’s serial number engraved.

The Stage 3 will come standard with 18-inch chrome wheels wrapped in high-performance Cooper RS3 tires. Shown in the photos here and a worthy option are 20-inch chrome wheels with Cooper RS3 tires. A full blown and proven suspension package includes tuned front struts, rear shocks, front and rear springs, front and rear stabilizer bars and revised jounce bumpers.

The 2010 Roush Stage 3 Mustang’s base price is $59,945 and will have a limited production of 103 units.

For the other crowd that has been loudly requesting a basic car without all the body doo-dads, racing stripes and expensive options, but with that big ROUSHCharger under the hood, there is the new 2010 Roush 540RH “Hammer”. Yep, “Hammer”. Isn’t that cool? The Hammer comes with just the Roush rear spoiler, short throw shifter, and that forged solid bullet-proof 540hp monster. Initial testing of the new 540RH tuned up an 11.8-second ET at Milan Dragway with a speed of 121 mph. That was on the 18” Cooper RS3 street tires in case you are wondering.

“The new ROUSH 540RH is really intended to be a ‘sleeper’ car,” Roush explained. “It will be purposely built with minimal content as it was designed for the buyer who wanted the ROUSH horsepower but with a blank canvas that can be customized into their own personal one-of-a-kind ride.”

The 540RH has a Roush suspension package to make the car handle the way it should and a subtle tone-on-tone striping package. While it is still pricey, the 540RH comes in at a base price of $46,145. Both cars will come with the anti-wheel hop kit and as stated before are covered by a 3-year/36,000-mile warranty. With this kind of horsepower you can only have it with a 5-speed manual transmission .

If you are interested, get busy. They are starting production now and will begin showing up at your local Roush dealer within the next 2-3 weeks. And for those of you who see that plain looking Mustang behind you with a slightly darker hood scoop, don’t take plain for granted.

More information: RoushPerformance


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