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Lack of Torque


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I have 2004 dodge 1500 2wd with the 4.7 mag. I was hauling a semi heavy load and noticed that ...


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Old 07-17-2016, 11:13 PM   #1 (permalink)
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Default Lack of Torque
I have 2004 dodge 1500 2wd with the 4.7 mag. I was hauling a semi heavy load and noticed that I lack power, what can I do to improve this?


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Old 07-18-2016, 06:13 AM   #2 (permalink)
 
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A good tune up. Efan install, ported throttle body. High output cam from a HO 4.7. That's the limit to my knowledge on 4.7 upgrades.

Oh yeah, you could turbo or SC it lol

Edit: forgot to add you could change your gears in your diff(s), depending on what you have now. That'll help for towing.


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Old 07-18-2016, 11:49 AM   #3 (permalink)
 
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Originally Posted by usaf2006 View Post
A good tune up. Efan install, ported throttle body. High output cams (if you can find them) from a HO 4.7. That's the limit to my knowledge on 4.7 upgrades.

Oh yeah, you could turbo or SC it lol

Edit: forgot to add you could change your gears in your diff(s), depending on what you have now. That'll help for towing.
Fixed it for you lol
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Old 07-18-2016, 11:53 AM   #4 (permalink)
 
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Could you go custom-grind on a cam to meet the high output specs?


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Old 07-18-2016, 12:01 PM   #5 (permalink)
 
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Yes, if I'm not mistaken that also requires something added to the stock valvetrain (lash caps or something like that, I don't do OHC lol).


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Old 07-21-2016, 05:29 PM   #6 (permalink)
 
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I have owned a 3rd generation and now have a 4th generation both with the 4.7. I tow a 5,000lb livestock trailer. No extra power but adequate. I have 3.92 gears which helps.

Use tow/haul mode. I believe your model also has overdrive off, which can be used if tow/haul isn't sufficient.
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Old 07-21-2016, 05:36 PM   #7 (permalink)
 
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4.56 gears and a tuner are the only mods I would consider for your application. Nothing else is going to improve your trucks ability to tow more than the gears and tuner will.


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Old 11-06-2016, 01:26 AM   #8 (permalink)
 
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Upgrade gears to 4.56 is a world of a difference and will get better mpg loaded👌

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Old 05-07-2017, 11:26 AM   #9 (permalink)
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Originally Posted by Rochellemj View Post
I have 2004 dodge 1500 2wd with the 4.7 mag. I was hauling a semi heavy load and noticed that I lack power, what can I do to improve this?
Drop a cummins in it
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