Results 1 to 10 of 10
  1. #1
    RC Qualifier
    Join Date
    May 2012
    Location
    Arkansas
    Posts
    335

    Need Gearing help

    Hi everybody. I have a MERV and I have had a lot of trouble with it so far, mostly my fault I think lol.

    So my MERV has ALOT of aluminum... upper&lower arms all around, tie rods and toe links, axle carriers, and 4 piggyback alum shocks. I also have 4 proline dirthaws on the titus wheels.

    I know I have added a considerable amount of weight to my kit. I have compensated by purchasing the traxxas 11.1v lipo. It's crazy fast... I have the high speed pinion that came with the kit installed.

    So there you know everything about my kit. But I have blown my rear diff. Only after 2-3 runs. I have heard of problems with the bulkheads becoming loose and causing the gear mesh to be bad, I think thats what happend to mine.

    Do you guys think I should change my pinion and spur gears to a lower gearing, or purchase the expensive alum bulkheads?

    Any and all advice is welcome!

  2. #2
    RC Champion
    Join Date
    Feb 2012
    Posts
    1,717
    I dont think aluminum bulks are needed. Just shim your diffs. And that is a whole lot of weight. Does your stock motor run warm?

  3. #3
    RC Qualifier
    Join Date
    Apr 2012
    Location
    McKinney, Texas
    Posts
    811
    Here is a thread for shimming your diff.

    http://traxxas.com/forums/showthread...-your-bulkhead

  4. #4
    RC Qualifier
    Join Date
    May 2012
    Location
    Arkansas
    Posts
    335
    Thanks! The motor did get hot to the touch once. So should get like a 14t pinion gear?

  5. #5
    RC Turnbuckle Jr.
    Join Date
    Mar 2012
    Location
    so cal
    Posts
    9,244
    You don't want to kill performance. Use a heat sink on the motor and fan on the Esc and get a buy a temp gauge to know your temps. Let it cool down once in a while

  6. #6
    RC Qualifier
    Join Date
    May 2012
    Location
    Arkansas
    Posts
    335
    Ok I'll get a heat sink, but do I need to lower my gears?

  7. #7
    RC Qualifier
    Join Date
    Jan 2012
    Location
    north van canada
    Posts
    528
    yes go like 19/50 or 21/50 if its still hot go up to a 55 spur
    Powered by Castle

  8. #8
    RC Turnbuckle Jr.
    Join Date
    Mar 2012
    Location
    so cal
    Posts
    9,244
    Only way to truely know is run it and check the temp with a temp gun.if you don't have one get one!

  9. #9
    RC Qualifier
    Join Date
    May 2012
    Location
    Arkansas
    Posts
    335
    Thanks man!

  10. #10
    RC Turnbuckle Jr.
    Join Date
    Mar 2012
    Location
    so cal
    Posts
    9,244
    I.tryed a fan on my motor which had a decent heatsink on it was running 150 and after the fan 110 looks good to me!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •