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Results 1 to 13 of 13

  1. #1

    My take on the Skidoo MXZ800 New Bright

    Ok, I have done extensive reading on other posts about this MXZ 800 and decided to go ahead and start this project. I bought this off from Ebay used, working in perfect condition. ( That didnt stay that way very long, opened the box , ran it about 10 feet, laughed and said how lame! ) I started with what every one else has done and gutted the old electronics and drive system out. Me being a machinist for over 25+ years helps alot in the way I approached this build.
    The first hurdle I went after was the front suspension. Here I built a 2 pc alum clamp to tie the radius rod's to the belly pan, here I noticed everyone else had drilled holes, bolted and made a bracket to tie the front sus to the belly pan. I then tackled the upper shock brace/ steering servo mount. This set-up seems very ridged, and very smooth travel.
    I then started in with the rear suspension and I found out for myself, they made it look great to scale but non-functioning. So, I made a pair of travel arms out of alum, oil light bushings in ALL wheels on the skid, made shock bolt down shafts to hold it all together. It flows more like the "M12" Suspensions found in full size sleds. Now this is just paliminairy, with ALOt more tuning here to do.
    The drive system I am doing like other post 's and going with a timing style drive belt and pulley's. I am also doing the same with the drive sprockets and made a hub to attach the drive sprockets to. I also found the drivin pulley does NOT run true and will not take the rpms I am going to subject this rig to, so there I made another hub to attach the trued up drive sprocket to with 6-32 bolts.
    I am to this point and waiting for the motor and ESC to finish the drivetrain, more to come........
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  2. #2
    Well got my electronics in and started with the fitment of the motor and drive. I also found out how weak the turnbuckle for the steering are and remade them also.
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  3. #3
    I relly like some of the mods youve done to this so far. I just ordered a used/broken mxz off ebay for this type of purpose as well. Not sure whether to go electric or put some crazy nitro motor in it. The turnbuckles youve made look great and its one of the first replacements im going to be required to do on this for sure.

  4. #4
    thank you, i went with the electric due to the ease of it all. The turn buckles where very weak, would recommend replacement.

  5. #5
    Ya i agree with ya there. One of the turnbuckles is already broken on this one, its why i got it so cheap compared to other ones. Ill be watching your build. Nitro is fun stuff but i might just leave that setup in my buggy and go big n brushless for this thing.

  6. #6
    Sorry I dont have much more right now, waiting on 4mm female connectors and the drive belt to come in........ the wait begins... lol

  7. #7
    Ok, after sum time now I have been able to get all the parts I needed to button up this project to get a little test run in. So I figured, test it in the house and make sure all is okey, went about 8 feet and SNAP, plastic suspension rails broke! Should have figured that was gunna happen, so back to the drawing board...... So what I did, I got 1/4 aluminium scraps and fabricated new rails, using the same locations as the stock ones ( rails are in rough state in pictures ). I also added mm bearings through out the idler and boogie wheels. Wow, there, issue resolved, plus it adds a little weight to the rear end where it really needed it! Sorry no videos but running on old batteries ( very short run time ).
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    Last edited by greendog; 03-06-2014 at 07:14 AM.

  8. #8

    Join Date
    Dec 2011
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    NICE dude!! love the pic with trail from sled and the jolly green giants footprints walking up to it... Come over and grab that LiPo it WILL liven it up!! I will even make you a jumper conn..
    ParshallWoodworks If you can dream it I can build it
    Stony Pond Model Boat Club,Cdga.NY
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    Rick

  9. #9
    Ok, after 6 battery packs, I have come across a couple of issues with the drive system. First one , not liking the rear suspension due to the geometry, going to address this over the summer months. Second was the drive belt I purchased through McMaster Carr, very cheap belt! It was shaking the motor compartment sooooo bad due to the inconsistency of quality in belt. So I purchased a name brand (Jason Industrial), 120XL031, WOW! What a difference! No shaking and smooth, and best perk, faster and quicker to speed!

  10. #10
    Well, old man winter has finally let up and now is the fun part of modding everything I didnt like about this build. The first issue I am addressing, is the rear suspension. I am im the process of making a fully functioning rear suspension that both front and rear of the skid will float indapendantly from each other. The picture is of new suspension rails, im really getting into the design and slotting the rail bottoms to reduce weight, and appearance. More to come.....
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  11. #11
    Ok, so with the summer months burning up my free time, little īs left to spend on the upgrade's I have planned for but, I managed to squeeze out enough time to make the center idler wheels out of aluminium with flanged 1/4 inch ID bearings. This upgrade should be more rugged, less rolling resistance and perk, bling bling!!!!!

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    Last edited by greendog; 06-10-2014 at 07:37 AM.

  12. #12
    So with a few extra minute's, I got the cross shaft done for the idler wheels above, bearings sit on the outer edges and center undercut to reduce weight, using 4-40 tapped holes to lag it together.
    Anyone that would like further info or prints of what ive done, feel free to ask, dont mind helping fellow modelers, nothing here is top secret!

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    Last edited by greendog; 06-24-2014 at 06:57 AM.

  13. #13
    So as the next pic's are of the uppper shock tower/steering servo bracket, changes here consisted of lightning up the the cross member with cut-outs, and going with a thinner alum for the servo bracket. Anywhere to shed the weight upfront is a plus!!!!!Click image for larger version. 

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