5.9 VS 5.7 Hemi - DodgeForum.com


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5.9 VS 5.7 Hemi

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Old 02-14-2004, 09:13 PM
ditchdoc
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Default 5.9 VS 5.7 Hemi

What the differents.Horse power, speed and over all around.I am talking 2003 5.9 V8.
Thanks just wondering how mine stands up.

[IMG]local://upfiles/2021/Db842831403.jpg[/IMG]
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Old 02-14-2004, 09:20 PM
redriderbob
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Default RE: 5.9 VS 5.7 Hemi

Well talking power wise the HEMI "MAGNUM" is rated 100 horsepower more and 30 ft-lbs of torque more than the 5.9L "MAGNUM" V-8 (360CI)! The HEMI is said to get better MPG than the 5.9L as long as you dont boot on it all the time. I have heard MPG from 9mpg - 19mpg w/ the HEMI depending on people being a lead foot or just driving normal. The HEMI is by far quicker than the 5.9L is quarter mile times. However, if you are talking top speed... it shouldn't matter Dodge has all Dodge trucks limited to 118mph top speed or so they say. Ford has a top speed of 108mph and GM has a top speed of 98mph (those are full-size top speeds minus the Lightning)

redriderbob
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Old 02-14-2004, 09:34 PM
ditchdoc
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Default RE: 5.9 VS 5.7 Hemi

I just checked out your home page man thats a sharp Hemi.[sm=smiley20.gif]
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Old 02-14-2004, 10:31 PM
vHiEpMeIr
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Default RE: 5.9 VS 5.7 Hemi

That's a nice truck.
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Old 02-15-2004, 06:04 AM
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Dave Dugal
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Default RE: 5.9 VS 5.7 Hemi

Hi Larry.

I'd say, other than the peak torque and HP already mentioned, the LOCATION of the torque in the RPM curve is the biggest difference between the 5.7L HEMI and 5.9L engines. I have an '01 Durango 5.9 R/T and an '04 Ram HEMI. The Durango can accelerate at 1,100 RPM comfortably while the HEMI only feels comfortable above ~2,000 RPM. Peak torque on the 5.9L comes 1,400 RPM sooner than the HEMI (3,000 RPM vs. 4,400 RPM).

I love my HEMI and am going to keep adding performance bolt-ons to it, but IMHO, the HEMI drives more like a racing engine while the 5.9L "360" engine drives more like a low-end grunter.

- Dave

Disclaimer: My first Ram had the 8.0L V-10, so I may have a warped sense of (torque) reality.
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Old 02-15-2004, 01:48 PM
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Default RE: 5.9 VS 5.7 Hemi

One of my unrealistic goals is to modify my 5.9 to keep up with a stock Hemi Ram
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Old 02-15-2004, 02:28 PM
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Default RE: 5.9 VS 5.7 Hemi

OOOOOhhhhhhh, can someone Please post rwhp stock dyno's for an 03 5.9 and a 03 HEMI ?????? Please.
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Old 02-15-2004, 05:01 PM
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Default RE: 5.9 VS 5.7 Hemi

Quote:
ORIGINAL: Vader

One of my unrealistic goals is to modify my 5.9 to keep up with a stock Hemi Ram
I looked into this at one point, and with a Whipple supercharger, a 5.9L engine can generate 360HP at the crank. That's pretty close to a stock 5.7L HEMI.

- Dave
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Old 02-15-2004, 05:06 PM
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Default RE: 5.9 VS 5.7 Hemi

Quote:
ORIGINAL: Vader

OOOOOhhhhhhh, can someone Please post rwhp stock dyno's for an 03 5.9 and a 03 HEMI ?????? Please.
I don't have the 5.9 dyno numbers, but for the 5.7L HEMI, check out:

http://stw.truckmoxie.com/forums/topic.ten?id=53520

- Dave
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Old 02-16-2004, 12:37 PM
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Default RE: 5.9 VS 5.7 Hemi

Thanks Dave, I am figuring around 175 rwhp for the 5.9 which is about 100 less than the Hemi. Right on par.
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