2000 Cat C12 Horsepower Uprate?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by High Stepping, Aug 18, 2022.

  1. High Stepping

    High Stepping Bobtail Member

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    I'm looking at getting a 2000 KW T800 with a C12 turned up. It currently has a multi-torque file in it set at 355/410 hp 1350/1550 torque with a 10 speed manual. It's used as a farm truck to pull grain, fertilizer, etc. Most people have recommended that we install a 430 hp/1650 torque file. I've also heard of others installing a RV file of 455 hp or 505 hp with only 1550 torque. What would y'all recommend and have you had any experience with running one? Thanks in advance!
     
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  3. Arctic_fox

    Arctic_fox Road Train Member

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    Id get a bigger truck honestly. If you need that much torque you can get something with a 455/1650 out of the box and dont need to pay for all the extra to uprate one. Uprateing an older engine like that that much is a good way to need a rebuild in a hurry.

    355/1350 with a 10 speed is going to be an absolute pig.
     
  4. AModelCat

    AModelCat Road Train Member

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    I don't know about the RV tune. RV's usually only run a couple thousand miles a year at most and rarely ever work too hard. Asking that engine to run at that power level all day, every day at max weight is going to be harder on it for sure.
     
  5. High Stepping

    High Stepping Bobtail Member

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    It's definitely a pig. That's our reason for wanting a little more out of it. We have other trucks, but this one has been a good little rig.
     
  6. High Stepping

    High Stepping Bobtail Member

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    I've heard they work pretty well running all day. Although, I've been told that the rv files have less of a torque rise, so the 430/1650 file feels better.
     
  7. kranky1

    kranky1 Road Train Member

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    Seen RV and Fire files in truck engines. Didn’t work real well. I kind of suspect those files may be optimized for torque converters. Might work if you had an Allison, but it would probably process some fuel if your toes were in the rad fins all day. Getting a pony to do a horses chore you always pay in the feed.
     
  8. spsauerland

    spsauerland Road Train Member

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    RV file is lower torque, 1550. Get the 430/1650.
     
  9. High Stepping

    High Stepping Bobtail Member

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    This is the same thing that I was thinking. Maybe if there was a 10 speed auto in it or an Allison.
     
  10. High Stepping

    High Stepping Bobtail Member

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  11. spsauerland

    spsauerland Road Train Member

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