03-08-2009, 02:11 PM | #1 | |
Drives: vrooooom vrooooom Join Date: Dec 2008
Location: Florida
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Stock SRT Challenger Dyno's 420 to the wheels.
Is this real?
If it is Dodge has seriously underrated their 6.1L HEMI engine...
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"With a light touch on the brakes, run the revs up a bit. Slip off the brake and bury the throttle. There's a light chirp as tires scratch for bite. Then comes a sub-5.0-second sled ride to 60 mph. A tick over 13.0 sec. and you're through the quarter-mile. It's a rush, of course, but not overly dramatic. Try the same thing with this pair's predecessors of 1970 or so and you'll find yourself in a bit of a wrestling match. Ain't progress wonderful? Maybe yes, and maybe sometimes it's fun to wrestle."
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03-08-2009, 02:16 PM | #2 |
Rice Harvester
Drives: 2014 Bright Yellow 2SS/RS Join Date: May 2008
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Yeah, Dodge underrates. The 5.7 is rated at 370 for the Chally, but it's more like 390.
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03-08-2009, 02:17 PM | #3 |
Drives: vrooooom vrooooom Join Date: Dec 2008
Location: Florida
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Yea but for the SRT to dyno at 420 it would have to be in the 450-500 range depending on % loss
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"With a light touch on the brakes, run the revs up a bit. Slip off the brake and bury the throttle. There's a light chirp as tires scratch for bite. Then comes a sub-5.0-second sled ride to 60 mph. A tick over 13.0 sec. and you're through the quarter-mile. It's a rush, of course, but not overly dramatic. Try the same thing with this pair's predecessors of 1970 or so and you'll find yourself in a bit of a wrestling match. Ain't progress wonderful? Maybe yes, and maybe sometimes it's fun to wrestle."
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03-08-2009, 02:19 PM | #4 |
Drives: The Imperial Army Join Date: Feb 2009
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03-08-2009, 02:19 PM | #5 |
Drives: ex-500hp v6 mustang Join Date: Oct 2008
Location: arizona
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depends on the type of dyno, correction factor, etc etc. you can make a dyno read about whatever you want.
a dyno is nothing more than a tuning tool. |
03-08-2009, 02:39 PM | #6 |
Drives: police interceptor Join Date: Nov 2008
Location: Austin, tx
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If it is real it is not stock, the 2008 challenger srt-8 auto's do 355-360 at the wheels I think.
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03-08-2009, 04:24 PM | #7 |
Drives: 2010 IOM Camaro Vin 34334 Join Date: Oct 2008
Location: Arlington, TX
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Well since they just post that it made 420hp, and never got you close enough to the dyno screen to verify its anyones guess. Id have to say
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03-08-2009, 04:34 PM | #8 | ||
Truth Enforcer
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fwhp.
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03-08-2009, 11:55 PM | #9 |
Drives: 04 Pontiac Grand Am, 08 Ninja 650r Join Date: Jan 2009
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03-09-2009, 01:33 AM | #10 |
Drives: challenger Join Date: Jul 2008
Location: miami
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fake
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03-09-2009, 01:53 AM | #11 |
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Not sure about modern HEMI engines, but back in the 60's the 425 hp rated motors were making upward of 600 hp on a dyno.
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We are the early orderers...we are GM's voluntary guinea pigs and their free source of feedback. How will we be thanked?
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03-09-2009, 10:42 AM | #12 |
Drives: 14 SS Sedan Join Date: Jul 2008
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Regardless of the dyno number, they are still slower than the G8 GXP. The Camaro being lighter than the G8, will be even faster.
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03-09-2009, 10:46 AM | #13 |
Drives: challenger Join Date: Jul 2008
Location: miami
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we all know that....we werent talking about competition in here just dyno....and the gxp is faster by .1 seconds....not that serious...
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03-09-2009, 10:48 AM | #14 |
Drives: challenger Join Date: Jul 2008
Location: miami
Posts: 2,338
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you are right but the new hemis cannot be tuned the way the old ones were...you have to stroke these ...the 425 hp to 600 one you speak of is the old school 426 hemi engine...which was a 7L v8 which was quoted wayyyyyyyyyyy below its hp rating....that is why the new hemis can be stroked into a 392 or 426....or even a 440
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