GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion

13.7 1/4, Hemi777 dynoed today...

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Old Apr 1, 2004 | 12:41 AM
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Default 13.7 1/4, Hemi777 dynoed today...

311rwhp and 339rwtq, pretty impressive...

http://dtw.truckmoxie.com/forums/topic.ten?id=87345
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Old Apr 1, 2004 | 01:27 AM
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Not bad at all...
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Old Apr 1, 2004 | 01:52 PM
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Cat mod? I thought it was all stock!
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Old Apr 1, 2004 | 01:56 PM
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Nah, i cant remember what all he's done, removed the cats, maybe mufflers too, homade air intake, tqm mod. He says he spent less than $100 total on the mods, i think it says in that post what hes done, not sure though.
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Old Apr 1, 2004 | 01:58 PM
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that doesnt seem like enough power for a vehicle that size to run those sort of times, i would think it would take somewhere around 340-350rwhp to get a 4500lbs truck ( an estimate on the lighter side) to run a 13.7, but who knows maybe im wrong.......
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Old Apr 1, 2004 | 02:02 PM
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I've run a 13.7, have the same dynoed RWHP, weigh about 4200, and run a 5.7, but I still have the stock cats. I think it is doing exactly what he says.
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Old Apr 1, 2004 | 02:07 PM
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Those are impressive #s. Id feel better if i were able to line up and run him though. Sounds like some good N/A competition, even if i had to spent a few thou more for mods.
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Old Apr 1, 2004 | 02:10 PM
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Yeah, you can look at numbers all day, but its all about the correct setup and the driver.
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Old Apr 1, 2004 | 02:27 PM
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Originally Posted by FRMRGM
Yeah, you can look at numbers all day, but its all about the correct setup and the driver.
your absolutly right about that, im not trying to start a dodge vs chevy fued or anything i was just going by the online horsepower calculators which i know can be full of ****, they all said it would be in the 14.0-14.1 range which made me slightly sceptical, but your right dyno numbers alone dont always tell the full story
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Old Apr 1, 2004 | 04:56 PM
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Originally Posted by FRMRGM
311rwhp and 339rwtq, pretty impressive...

http://dtw.truckmoxie.com/forums/topic.ten?id=87345

Those numbers are not SAE corrected.
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