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  1. #1
    RC Enthusiast
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    Jul 2010
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    New summit owner

    Hi all
    I have previously had a merv but that was loooong time ago, I have now gotten a used mini summit for my boy as I am a little protective of my own cars

    Now the summit I have is the BL one Ive had a bit or a run around the garden before my son gets his hands on it later today.

    There doesn't seem to be any oil in the shocks any recommendations? With stock springs blue if I remember correctly

    Same with the diffs what are you all running for bashing?

    I have a spektrum dx3r radio so Im wondering will I get anything more out of the servo and the esc if I swap over to this?

    Other than that I think Ill get a couple more batteries for longer run times.

    Anything else that you guys recommend getting and maybe upgrading.

    Whats a good little servo to have on hand as a replacement?

  2. #2
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Oct 2009
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    The shock question I cannot answer... I upgraded straight from stock to YeahRacing shocks. I run 50wt in those and like them... but they are big bore with some pretty stiff springs.

    I have been running 30wt in my shimmed differentials without any issues... until I ran 3S after over 200 2S runs.

    I doubt you will see any improvement in servo function with a different radio, but from what I understand; switching out either the radio or the ESC will help get you some better brakes.

    Are you going to have your boy run LiPo? LiPo's serve up some pretty awesome run times.

    I recommend shimming.... and adjusting the suspension so the RC is riding in the midrange... not topped out.

    I have ran a 390 servo for quite some time... I am very happy with it.
    Whatever it is I just said... I could be wrong.

  3. #3
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    Thanks jimmy, I just refilled them with 17 wt but that felt like there wasn't anything in there still so I might go to about losi 35 wt

    Will I hear the diffs skipping or feel them slipping before I need to shim them or will they just break and then need replacing?

    I will be doing lipos I have currently 2x 1800 and will get another couple.

    Do you have a link or part number for those shocks and servo ? Will they PnP or do I need to mod anything? What springs are you using?

    I notice that there is a lot of play around the servo saver, Is that common?

  4. #4
    RC Qualifier
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    Dec 2011
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    Woodward, OK
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    I run a different radio, with stock esc, it seems that the throttle is a little more touchy, and the brakes do work a whole lot better. It would hardly ever endo on brakes and now will do it every time if not carefull.
    Also Jimmie what knuckles are you running, my stock ones are getting pretty sloppy.
    T-maxx 3.3
    Rusty 2.5r
    Summit VXL
    Nitro 4-tec

  5. #5
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    By the time you hear diff clicking, it is too late. Shim before running, and then go through the process again after a few packs. Sometimes a another shim is needed, sometimes not.

    I run mostly 2200 2S LiPo's in parallel... get about 1 hour run times.

    Here is my thread on the shocks:
    http://traxxas.com/forums/showthread...01TI-Shock-Set

    390 is the part number on the servo. Blue Bird is one of the brands. I will post setup instructions in a minute...

    Tearing down the saver and inspecting for broken parts and debris will answer your saver question. Without a video, it is hard to say if what you have is normal or not.

    I am running HR knuckles. I like them, but threading in the pillow adjuster is a bit tricky. I got them on eBay for $18 shipped for all 4.
    Last edited by Jimmie Neutron; 08-27-2012 at 10:55 AM.
    Whatever it is I just said... I could be wrong.

  6. #6
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    390 Set Up

    All stock hardware is used.
    NONE of the hardware included is needed!


    There are tab braces that do not allow the servo guard to sit flush.
    IT IS OPTIONAL TO REMOVE THEM.
    I have done this both ways without any adverse reactions.
    Here is a picture of the braces:

    (thanks goes to danielhr77 for the picture)
    The tab braces create a small gap between the chassis and the servo guard.

    Here is how it plugs in:



    You will also need to reverse the servo direction.
    These are the steps for LINK and TQi radios:

    Hold MENU for 3 seconds
    Green Blinks

    Press MENU
    2 Green Blinks

    Press SET
    Green Blinks

    Press SET
    Red Blinks

    Press SET
    8 Green Blinks

    Hold MENU
    Setup Complete
    Whatever it is I just said... I could be wrong.

  7. #7
    RC Enthusiast
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    Aug 2012
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    good to know...thank you

  8. #8
    RC Competitor
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    I believe the stock shocks come with 60wt. I changed mine to 80wt and put stiffer springs in the rear.

  9. #9
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    I just noticed a typo in my above post.
    I am running 30k, not 30wt, in my differentials.
    Whatever it is I just said... I could be wrong.

  10. #10
    RC Turnbuckle Jr.
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    Mar 2012
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    I have had luck shimming a diff that was clicking. If its not too bad it might hold up

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