Register and gain access to Discussions, Reviews, Tech Tips, How to Articles, and much more - on the largest Arrma RC community for RC enthusiasts that covers all aspects of the Arrma-RC brand!

Register Today It's free! This box will disappear once registered!

Reverse wiggle

Discussion in 'Fury & Mojave' started by roger nelson, May 21, 2015.

  1. roger nelson

    roger nelson Well-Known Member

    Joined:
    May 20, 2015
    Messages:
    91
    Likes Received:
    63
    Arrma RC's:
    Fury
    i get a front end wiggle when I reverse my fury at medium + speeds. I wonder if a better servo would do away with this? Not really a problem just a quirk I have noticed.
     
  2. rcnut14

    rcnut14 Active Member

    Joined:
    May 19, 2015
    Messages:
    26
    Likes Received:
    9
    hmmmm. it doesn't do it when you go forward? maybe a glitch buster would help.
     
  3. Walter

    Walter Well-Known Member

    Joined:
    May 19, 2015
    Messages:
    278
    Likes Received:
    203
    Arrma RC's:
    Fury, Granite
    It's normal and part of the design of the vehicle. The positive caster angle is setup to provide stability in forward (where most of your driving occurs). Also, you probably have some toe-in on your front wheels, (again for stability in forward driving). In reverse driving, the caster angle is negative and you have toe out... which is not good for stability at high speeds. Have you had a shopping cart wheel that is crazy wobbly before? It's the same principle.

    Check out this link:
    http://www.acksfaq.com/caster.htm
     
  4. roger nelson

    roger nelson Well-Known Member

    Joined:
    May 20, 2015
    Messages:
    91
    Likes Received:
    63
    Arrma RC's:
    Fury
    Ahhhh. Thanks for the link! Guess I was looking for an excuse to upgrade the steering servo. :cool:
     
  5. Unusual RC

    Unusual RC Moderator
    Staff Member Premium Member

    Joined:
    May 18, 2015
    Messages:
    811
    Likes Received:
    300
    Location:
    The Hague, The Netherlands, Europe
    Arrma RC's:
    Fury, Mojave
    I have a better excuse for you: the stock servo will eventually break it's gears! ;)
    When you race reverse is prohibited in the first place.
    And there is 0 degrees toe-in on the Fury/Mojave, and any SCT 2wd in general.
     
    Kyzane and roger nelson like this.
  6. mrbelloso

    mrbelloso Moderator
    Staff Member Premium Member

    Joined:
    May 21, 2015
    Messages:
    1,013
    Likes Received:
    396
    Location:
    Brisbane, Australia
    Arrma RC's:
    Fury
    I have also notice this on mine, thanks for the information.
     
  7. Rolex

    Rolex Well-Known Member

    Joined:
    May 17, 2015
    Messages:
    51
    Likes Received:
    17
    Walter's info is spot on.
     
    Unusual RC likes this.
  8. roger nelson

    roger nelson Well-Known Member

    Joined:
    May 20, 2015
    Messages:
    91
    Likes Received:
    63
    Arrma RC's:
    Fury
    The motor quit on my fury today. Ran about 4 batteries on it. Minus break in. It wiggles no more :(
     
    Boscoe likes this.
  9. mrbelloso

    mrbelloso Moderator
    Staff Member Premium Member

    Joined:
    May 21, 2015
    Messages:
    1,013
    Likes Received:
    396
    Location:
    Brisbane, Australia
    Arrma RC's:
    Fury
    What happened, what kind of batteries where you using?
     
  10. Darren Wes

    Darren Wes Well-Known Member

    Joined:
    May 22, 2015
    Messages:
    306
    Likes Received:
    156
    Location:
    St. Louis
    Arrma RC's:
    Granite
    Were you running the batteries back to back? did you check the temps. Might have been killed by heat. I ran my granite with a basic 15t for 2 5000mah 2s lipos on a park trail in a stream and rock bed and back up and i killed it on the way back up from the heat. I thought i was being carefull but back to back batteries will kill these guys in stock form. Its just too hot
     
  11. Unusual RC

    Unusual RC Moderator
    Staff Member Premium Member

    Joined:
    May 18, 2015
    Messages:
    811
    Likes Received:
    300
    Location:
    The Hague, The Netherlands, Europe
    Arrma RC's:
    Fury, Mojave
    The stock 15 turns Arrma motor's brushes cannot handle lipo power.
    Mine turned into black power once halfway on a 6000mAh 2S lipo.

    Really replace with something else instead of buying a new one.
    Preferably brushless.
     
  12. Darren Wes

    Darren Wes Well-Known Member

    Joined:
    May 22, 2015
    Messages:
    306
    Likes Received:
    156
    Location:
    St. Louis
    Arrma RC's:
    Granite
    3465083.jpg wish we all could be this lucky.
     
    MSgt and Boscoe like this.
  13. roger nelson

    roger nelson Well-Known Member

    Joined:
    May 20, 2015
    Messages:
    91
    Likes Received:
    63
    Arrma RC's:
    Fury
    Actually I was running the2000mAh nimh that come with it at the time. The motor does not look or smell cooked. I have run a lipo twice with it and checked the heat with my meter. The light on the esc lit like it should so I plugged the motor in my friends esc and nothing. Not many companys have non rock climber brushed motors. Kinda looking at the atomic 15*2 fireball or associated's radon 17t. Anyone have a idea of a good lipo tough replacement? Don't really want to replace the esc yet and go brushless. In the future I will for sure. Btw it was the first battery of the day. Had to run the nitro rig to finish up the day. Love my bullet mt but dang nitro is such a quirky turd!
     
  14. roger nelson

    roger nelson Well-Known Member

    Joined:
    May 20, 2015
    Messages:
    91
    Likes Received:
    63
    Arrma RC's:
    Fury
    Lipo ready and almost lipo ready are different statements altogether. Gonna try to get arrma to replace it. But for now I am looking for something better,cheap.
     
  15. Darren Wes

    Darren Wes Well-Known Member

    Joined:
    May 22, 2015
    Messages:
    306
    Likes Received:
    156
    Location:
    St. Louis
    Arrma RC's:
    Granite
    Arrma customer service rocks!

    That really blows man. Sounds like a bunk motor...

    Personally i got about 1 month with the 15t arrma motor before it met mr. Trash. And i was running 2s for about 20-40min depending on heat.

    I would just try another and see where it gets you.

    If cheap replacments is what you want i found the hobbypower/wing brushless stuff to be affordable and way better then stock. And for 40 bucks! What could go wrong
     
  16. roger nelson

    roger nelson Well-Known Member

    Joined:
    May 20, 2015
    Messages:
    91
    Likes Received:
    63
    Arrma RC's:
    Fury
    They had 2. Stock ecx 15t,and Titan 12t 550. The 550 fits( barely) .shaft is just a bit long to put cover back on,well not anymore;)
     
    #16 roger nelson, May 23, 2015
    Last edited: May 23, 2015
  17. Darren Wes

    Darren Wes Well-Known Member

    Joined:
    May 22, 2015
    Messages:
    306
    Likes Received:
    156
    Location:
    St. Louis
    Arrma RC's:
    Granite
    Dang you got a 550 to fit... did you hav to take off the back of the tranny for that?
     
  18. roger nelson

    roger nelson Well-Known Member

    Joined:
    May 20, 2015
    Messages:
    91
    Likes Received:
    63
    Arrma RC's:
    Fury
    If it was any bigger at all it wouldn't work. Runs nice! On big gravel it is useless to try to control, even taking it easy. Temperature was well below the book specs. Thinking about relaxing the springs a bit . Nice handling rig for sure.the motor slid right in,just remove the driver side guard .
     
    Grat and Darren Wes like this.
  19. mrbelloso

    mrbelloso Moderator
    Staff Member Premium Member

    Joined:
    May 21, 2015
    Messages:
    1,013
    Likes Received:
    396
    Location:
    Brisbane, Australia
    Arrma RC's:
    Fury
    Could you post some photos?
     
  20. roger nelson

    roger nelson Well-Known Member

    Joined:
    May 20, 2015
    Messages:
    91
    Likes Received:
    63
    Arrma RC's:
    Fury
    image.jpg image.jpg
     
  • Welcome to Arrma Forum

    Arrma Forum is a Arrma RC fan site that was started to give Arrma RC enthusiasts a place to come together and discuss and share their experiences with the entire Arrma-RC product line, such as the Arrma Kraton, Arrma Talion, and Arrma Granite.

    We welcome all Arrma RC enthusiasts, both new and old, racers and bashers that share a common goal - a willingness to help and learn.
  • Disclaimer