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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #1  
Old 06-03-2011, 06:52 PM
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Default Horsepower Question?

I have a 2010 ram 1500 5.7 4x4. Ok so dodge said these trucks have 390 horsepower. I have ARH with cats magnaflow cat back air raid cold air and thottle body spacer. I also have a diablosport predator with custom dyno tune. My truck dyno at 273 rear wheel horsepower. I think that is low. What do you guys think low, high or about right??
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Old 06-03-2011, 06:56 PM
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That sounds really low! GTYankee just dynoed his stock with 42K miles and it rolled 315!

Last edited by 916Timmy; 06-04-2011 at 03:39 AM.
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Old 06-03-2011, 07:17 PM
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[IMG] [IMG]

curb weight 6,000 pounds
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Old 06-03-2011, 07:27 PM
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Something does not sound right with those numbers, you sure it wasnt 373?
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Old 06-03-2011, 07:36 PM
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373 would be high unless he did a cam... tb spacers don't work for our trucks...what size wheels are you running? 20's?..what's the gear ratio? i know there is considerable drive train loss..but not that much...
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Old 06-03-2011, 07:37 PM
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the tune could be off...are you still running the stock pinched y pipe?
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Old 06-07-2011, 12:13 AM
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hmm that is werid
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