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luke andres

Puppy Poster
  • Content Count

    47
  • Joined

  • Last visited

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19 Good

About luke andres

  • Rank
    Truck Nut

Profile Information

  • Location
    indiana
  • Interests
    like mack trucks esp dump trucks older ones I do a little excavating on the side for extra cash

Previous Fields

  • Make
    mack
  • Model
    dm 690
  • Year
    1991
  • Other Trucks
    2001 mack cl700 tri axle dump 1995 international 8100 single axle dump

Recent Profile Visitors

1,116 profile views
  1. has anyone ever switched a em7 300 hp to a e7 350 my 1991 dm690 dump has the em7 and I think its losing power instead of rebuilding it I also have a 1994 ch613 parts truck with a good e7 350 engine only thing is the 94 has the bosch pump with the 7 pin electric connection my 91 is bosch pump with linkage for the throttle what would be my best route to chose 91 em7 has eaton fuller 8ll 94 e7 has eaton fuller 9 speed thanks for all help on this
  2. i have a 91 dm690 tri axle em7 engine i went from a 2080 mack tranny to an eaton fuller 8ll also went from 573 rears to 442 love the different setup not such a big jump between gears you will need the bellhouse that accepts the mounts and also the mount brackets as the mack engines have the engine mounts on the bellhouse i also had to shorten the drive shaft hope that helps
  3. i know personally where you are coming from on wanting more gears. I switched my 2080 with a Eaton 8LL. I had an Eaton 13-speed first but it got stolen. So then I found the 8LL and went with it. I did change my rears from 5.73 to 4.42 to keep top speed. You may also have to lengthen driveshaft but that's not a big deal. I say go for it. Those Mack trannies are tough but not enough gears.
  4. If it were me, I'd stick with your 90s Macks.
  5. e7 or em7 what transmissions my 91 dm has an air line going to the bosch fuel pump and with it not having air to it it doesn't pull a hill worth a darn. Found this out when I switched to a fuller 8ll and didn't have the air line hooked up
  6. has anyone ever changed the fuel plate on the p7100 pump on the em7 300 engine like the dodge cummins 5.9 12 valve people do if so did it increase the horsepower or just make a lot of black smoke id like to get some more horsepower out of this em7 300 but dont want to melt the engine down id like to hear from someone who know this engine and what exactly to do to it without harming it thanks
  7. do em7 mack engines have a puff limiter built in 1991 has a 7100 p pump on it
  8. I put the information about the Tranny on the BigMackTrucks.com facebook page. You may reference the photo there under the visitors section in the right hand column. Unfortunately I was unable to attach any photos to this forum or gallery. Input on how to correct the issue is appreciated. Thank you, Luke
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