Home / Auto News / News article: 2011 Dodge Challenger SRT8 Predicted to Get 480-HP from New 6.4L V8 - AutoGuide.com News
 |  Jun 29 2010, 8:09 AM

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In a bid to stay competitive in the ever-constant muscle car horsepower wars, the 2011 Dodge Challenger SRT8 is set to get a big increase in power. We’ve already heard numerous rumors of a new 6.4-liter V8 replacing the current 6.1-liter unit, but now comes word that along with improved efficiency, the new engine will boast 480-hp and 460 ft-lbs of torque – increases of 55-hp and 40 ft-lbs respectively. The new engine is also touted to get ZF’s new 8-speed automatic transmission for improved performance and fuel economy.

As for the R/T models, they will retain the same engine and output levels, while the base SE will see significant improvements thanks to the use of a new Pentastar V6 engine, which just launched in the new 2011 Jeep Grand Cherokee. That new powerplant will  bump output by 40-hp and 20 ft-lbs for a total of 290-hp and 270 ft-lbs of torque. Fuel economy should also get a boost, up from 18/25-mpg (city/highway) to 20/26-mpg.

A host of other changes are also set to debut on the refreshed 2011 model Challenger.

[Source: AllPar]

  • srt8 yea

    Will the SRT8 6 spd also get cyclnder deactivation? Opinions since this the 1st year for such a hi horse power engine w/dectivation-activation?
    Thanks!

  • JIM

    I HAVE LOVED THE CAHALLENGER ALL MY LIFE BUT AM TURNED OFF ON SOME OF THE NAMES AND THINGS THAT HAVE BEEN DONE. PLEASE TAKE THE WASHERS OF THE HOOD AND LET THEM SHOOT FROM UNDER THE HOOD THEY CHEAPEN THE LOOK OF THE HOOD. PLEASE TAKE THE TRUCK RAM EMBLEM OFF THE FRONT AND PUT THE DODGE LETTERS BACK ON. DROP THE SRT8 NAME/LINE,JUST USE THE ORIG. R/T NAME,NO NEED FOR NEW NAMES IT GETS CONFUSING FOR THE HI-PERFORMANCE MODEL. THE NEW 6.4 IS AGOOD IDEA BUT FALLS SHORT HORSEPOWER WISE SHOULD BE AT THE LEAST 550 HP. THE SPOILER SOULD BE ABLE TO BE PAINTED THE COLOR OF THE CAR NOT JUST BLACK. FOR THE MID-MODEL CAR USE THE T/A NAME USING THE T/A STYLE HOOD. USE THE BLACK SPOILER ON THIS CAR. FOR THE BASE MODEL THE 6 CYL. CAR JUST CALL IT CHALLENGER,NOT NAMED AFTER A OPTION AND GIVE IT A FLAT HOOD SO THE BEST MODEL HAS THE CURRENT HOOD. ONLY,SO IT IS DITINGUISHED AS THE HI PERF. MODEL. THE THREE MODELS WILL HAVE THERE OWN CHARACTER.