MPG: 40hp vs 100hp injectors

Discussion in 'Dodge 2nd Gen Cummins 5.9 (24v)' started by Woods, Feb 6, 2008.

  1. Woods

    Woods Well-Known Member

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    I'm wanting to jump to a 100hp injectors. Right now I have the RV injectors in my truck and fuel mileage went up by almost 1mpg. I'm wondering if the jump to 100hp injectors would hurt fuel mileage?

    Thanks
    WOODS
     
  2. cm cows

    cm cows Well-Known Member

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    stillwater ok
    i didnt see a drop in milage but smoke and power is good. and i see you have you tranny built all ready, so i say do it, you wont regret it
     
  3. Woods

    Woods Well-Known Member

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    Thanks for the reply! I'm probably going to have to upgrade to a 4 inch exhaust also to help keep the egts down.
     
  4. RJF's Red Cummins

    RJF's Red Cummins TRC Staff Moderator

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    I might be interested in your RV injectors if you have them available.
     
  5. cm cows

    cm cows Well-Known Member

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    you will be suprised how managable the egts are, as long as you keep the box turned down. but if you turn it up you better watch it cause it will be hot. but the hy cleans up the ddIII's really well, you wont regret itwaytogo
     
  6. DieselDood

    DieselDood Well-Known Member

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    The fun thing with Diesel is if it only takes XXX ammount of fuel to run 60mph down the road, even with bigger injectors it only takes XXX ammount. The difference in milage is your right foot and your right foot only.
     
  7. twilson

    twilson Well-Known Member

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    when I went to the 120 hp jammers my milage increased by 3.( AS ADVERTISED) When I took them back out I lost that increase. That increase showed up electronically and through manual calculation.
     
  8. Woods

    Woods Well-Known Member

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    I got a price of $488 on a set of 100hp injectors, plus $100 core. Soon as I get some money owed me, I'll be getting them. I already have someone interested in my 40hp injectors, will see if they come up with the $$ when the time comes.
     

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