5.9L 24V Performance Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps Related To Performance And Longevity

New Intake Maniflod

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Old Mar 10, 2013 | 07:14 PM
  #1  
DevonMolendyk's Avatar
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From: Washington
Default New Intake Maniflod

So im looking at putting an intake manifold on my truck but does it even really make much of a differnce? i have heard mixed opinions.
 
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Old Mar 10, 2013 | 08:58 PM
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Mopar1973Man's Avatar
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From: New Meadows, Idaho
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Not for a daily driver. No. If you in it for racing then it might make a small difference.

Lets say I've got stock 3" exhaust, HX35 turbo, BHAF and have absolutely no problems towing my RV or hitting good high MPG numbers.
 
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Old Mar 11, 2013 | 04:59 AM
  #3  
AlaskanRenegade's Avatar
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^^ yea buddy I'm agreeing with Mopar.

The only thing for a DD that it'll really do is make the engine bay look a bit better..

That's why I painted mine!
 
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Old Mar 11, 2013 | 08:17 AM
  #4  
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i havea three piece manifold on mine so when it gets hot they dont crack or when cool down there good if you tow bc the stock one can crack haulin heavy
 
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Old Mar 11, 2013 | 09:20 AM
  #5  
Mopar1973Man's Avatar
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Let's put it this way.

I've never upgraded my exhaust or intake because of a simple truth. When I'm driving I'm driving for fuel economy so my boost pressure is 5 PSI or less and my EGT's are 600*F or less so there no need for bigger intakes or exhaust. Even towing my boost ranges 5-7 PSI and about 600-700*EGT's on flat ground. The only time I got to watch the gauge is climbing a grade but even then I down shift to 4th set the cruise for 53 MPH and walk over a grade at 25 PSI of boost and 1,100*F EGT's. Still nothing to cry about.

* Edge Comp on 5x5
* RV275's
* BHAF
* Straight Pipe 3" Exhaust
* Stock Intake
* Stock HX35W turbo

Empty I get 20-23 MPG typically towing is roughly 14 MPG...

So bigger intake means what?!

 
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Old Mar 11, 2013 | 11:24 AM
  #6  
ricet07's Avatar
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From: Argyle,WI
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Originally Posted by blacksally
i havea three piece manifold on mine so when it gets hot they dont crack or when cool down there good if you tow bc the stock one can crack haulin heavy
He said INTAKE manifold but anyways like mopar said there is no need for it on a DD and your money could be spend better elsewhere.
 
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Old Mar 16, 2013 | 01:27 AM
  #7  
blacksally's Avatar
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my bad i see that mines stock
 
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Old Mar 16, 2013 | 08:44 AM
  #8  
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The difference it will make will not be one you will feel. You may see a difference on a dyno in the hp/tq numbers and slightly reduced EGT's. Bang for the buck, they aren't worth it. They do dress up the engine bay nicely though. 3rd gens show more benefit than 2nd gens from an intake elbow.
 
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