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CXT build

Discussion in 'Large Scale RC' started by Bluedually, Feb 23, 2017.

  1. Bluedually

    Bluedually Studio Forums Elite
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    Picked up the CXT from wal-mart probably 6-7 years ago now. Ran it twice before shelfing it. Probably four years ago I picked up a HPI wheelyking to use for a chassis and axle donor, had a friend airbrush the CXT body... Then life happened. Thanks to the tax return got a new CrawlerKing chassis on the way along with the dual brushed motor single speed trans out of an E-maxx.

    I had thought about running Axial axles, but they look a little skinny under the body, plus the HPIs look a bit more scale with the center diffs and thicker axle housing. Frame will be aluminum or steel C channel with leaf springs up front and four link out back. The E-max trans will have a drive shaft connecting it to the CrawlerKing trans, which will be like a gear reduction transfercase. Going more for pulling power not speed, as the truck will get a custom trailer built later.

    Not set on electronics yet. LiPos and four channel radio for sure, as I want a sound and light kit for this truck. So I am open to motor and ESC suggestions. Wheels and tires are still up in the air as well, scale dictates a 6 or 6.5 inch tall tire and I haven't found any.

    And now some pics.
    [​IMG]Stock by Gordon Latimer, on Flickr
    [​IMG]Pretty close by Gordon Latimer, on Flickr
    [​IMG]Comparring wheel base by Gordon Latimer, on Flickr



    [​IMG]CXT by Gordon Latimer, on Flickr


    Sitting on a WheelyKing/CrawlerKing hybrid chassis. To put it in scale if no one has seen one of these trucks before. Those are RC4WD 2.2 Mudslingers XLs under that body.
    [​IMG]0104171517 by Gordon Latimer, on Flickr

    Chassis and ride height mockup.
    [​IMG]SD531385 by Gordon Latimer, on Flickr
     
    #1 Bluedually, Feb 23, 2017
    Last edited: Jul 9, 2018
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  2. Antho11

    Antho11 Studio Forums Elite
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    I like the look of the mud thrashers better and the airbrushing is nice. That carpet looks unforgiving when it comes to losing screws.
     
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  3. darkside0914

    darkside0914 Studio Forums Elite
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    I agree with @Antho11 on the hpi mudthrashers, although the mudslingers give it a more scale real 1/1 truck look. if you wanted to go with a bigger tire you'd probably have to go with a 2.8 or 40 series wheel
     
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  4. Bluedually

    Bluedually Studio Forums Elite
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    #4 Bluedually, Feb 23, 2017
    Last edited: Mar 4, 2017
  5. Bluedually

    Bluedually Studio Forums Elite
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    Everyone's favorite day, parts day. Even better since I thought they would be here next week.
    These aluminum rails are the right length, just to show how much stretch the HPI chassis needs.
    [​IMG]cxtpart2 (3) by Gordon Latimer, on Flickr

    And really surprised by how easy it will be to hook the two transmissions together will be. Just need to shorten the shaft the spur gear mounts on a little bit and the drive shaft will bolt right in place of the spur gear.

    [​IMG]cxtpart2 (1) by Gordon Latimer, on Flickr
     
    #5 Bluedually, Feb 27, 2017
    Last edited: Jul 9, 2018
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  6. darkside0914

    darkside0914 Studio Forums Elite
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    you could give these a shot, but they are a bit expensive http://www.ebay.com/itm/Dually-3-2-...194027?hash=item33c852aeeb:g:puUAAOSwx6pYnJXd
     
  7. Bluedually

    Bluedually Studio Forums Elite
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    Says they are Imex... 8 tires and 4 rims for 200 is a bit steep lol. Sweet find though, I'll have to look around some more about them.
     
  8. Bluedually

    Bluedually Studio Forums Elite
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    Finally and I mean finally got the front axle leaf spring mounts figured out and got the front axle mounted up. Test fit the transmissions and the steering servo mount. Looks like it will have good ground clearance and not have sharp driveline angles. Needs a little tweaking and polishing, but I am pretty happy with it so far.
    [​IMG]

    [​IMG]
     
  9. Bluedually

    Bluedually Studio Forums Elite
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    Took the New Bright plate off and that allows for my trimmed down frame rails to pass thru the bumper. Want to build a grill guard for it and this will allow for a solid chassis mount.
    [​IMG]Frame rails by Gordon Latimer, on Flickr
     
    #9 Bluedually, Mar 4, 2017
    Last edited: Jul 9, 2018
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  10. Bluedually

    Bluedually Studio Forums Elite
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    Kinda of leaning to these:
    http://www.imex-model.com/product/IMX7425/K-ROCK-TIRES-PR.-T-EMAXX-SVG-TC-BFT.html?cid=132
    The only good looking rims they have that fit are for the Tmaxx and I am sure those don't have enough back spacing to sit right on the HPI axles.
    These look cool and judging from the special rim they sell are in fact two separate tires on a single rim.
    http://www.imex-model.com/product/IMX7430/X512--INCHDUALLY-DAWG-INCH-TIRE-SET-(4-TIRES).html?cid=132

    My biggest gripe is how Imex gives zero specifications for most of their tire and wheel products.
     
  11. Antho11

    Antho11 Studio Forums Elite
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    Did you check for Prolines 2.2 XL tires, they're bigger than regular 2.2s.
     
  12. Bluedually

    Bluedually Studio Forums Elite
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    I have and the XL boggers are 5.8"
     
  13. Bluedually

    Bluedually Studio Forums Elite
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    Little more work done. Started on the HPI trans sub frame. I left the links on the front axle to help line everything up. Plus I know links will hook up if I need traction bars or switch to 4 link on the front.
    [​IMG]Mounting HPI trans by Gordon Latimer, on Flickr
     
    #13 Bluedually, Mar 11, 2017
    Last edited: Jul 9, 2018
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  14. darkside0914

    darkside0914 Studio Forums Elite
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    what about using the k rock tires with a set of rpm revolver wheels, they have them in both standard offset and deep dish, http://www.ebay.com/itm/NEW-RPM-Rev...661193?hash=item43c5e0ed49:g:4ZYAAOxyJX1TAmnm
    i'm not sure of the standard offset, but the deep dish have a 15.24mm offset

    http://www.ebay.com/itm/NEW-RPM-Rev...120f70b&pid=100005&rk=2&rkt=6&sd=291082661193
     
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  15. 00whynot

    00whynot Moderator
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    looking good :)
     
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  16. soup

    soup Studio Forums Elite
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    I thought the carpet in my building room was iffy.
     
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  17. Bluedually

    Bluedually Studio Forums Elite
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    Build video of the new frame rails.
     
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  18. Bluedually

    Bluedually Studio Forums Elite
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    The video was from yesterday, today I got the HPI trans mounted up. Oddly out of a million screws, of all shapes and sizes... I don't have the right size to bolt the Traxxas trans to its mounts. On to the photos!
    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]
     
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  19. Bluedually

    Bluedually Studio Forums Elite
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    Built the sub frame for the rear 4 link. Haven't bolted it in yet as I need to get the body mounted so I can set the wheel base. Hoping to get it sitting on springs at all 4 corners this weekend.
    [​IMG]4 link sub frame by Gordon Latimer, on Flickr

    [​IMG]100_0277 by Gordon Latimer, on Flickr
     
    #19 Bluedually, May 24, 2017
    Last edited: Jul 9, 2018
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  20. Bluedually

    Bluedually Studio Forums Elite
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    Did some body mount tinkering. Needs more tinkering. However I lucked out and with some spacers one of the extra steering knuckles will make the carrier bearing mount I needed. Because this will need 3 drive shafts. One up front and two out back. A turnbuckle with rod ends will keep the steering knuckle from pivoting.
    [​IMG]
     
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