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    Re: Need help with 1/2 scale truck
    #11
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    Darwinpayne that would be great. Ill have to check but I think the rims I used were 10 inch. So shouldnt be any issue fitting

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    Re: Need help with 1/2 scale truck
    #12
    The Bob Ross of MBN Bullnerd's Avatar
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    Nice job!
    "Speed is time-time is speed"-Dennis Hopper

    Quote Originally Posted by TALON View Post
    did you use a special bigfoot camera or something ,you know all blurry could be a tree stump kinda thing .
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    Re: Need help with 1/2 scale truck
    #13
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    Quote Originally Posted by Bullnerd View Post
    Nice job!
    Thanks

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    Re: Need help with 1/2 scale truck
    #14
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    Quote Originally Posted by ricky.wells33 View Post
    Considering the topic, the shirt is perfect..lol
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    Re: Need help with 1/2 scale truck
    #15
    Protodie Master and Vendor ProtoDie's Avatar
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    cool looking truck!
    I agree with previous posts
    one caliper on the rear will stop it

    1. I would run a 1/2" to 5/8" master cylinder,
    2. 8-10" dia rotor
    3. if the MC is low on the frame, try adding a 2 lb residual valve
    if still not good enough
    4. add a 4 piston caliper.
    I run 4 piston wilwood, part # 120-6818 caliper with brake pads 150-8850K on single rear brake buggies
    pricey though. A used motorcycle caliper should be able to do it too

    3. make sure you have enough throw / leverage on the pedal. depending on the pedal location, may have to go to a hanging pedal to increase leverage

    and bleed, bleed , bleed and re bleed the brakes good. tiny bit of air in the system can take away all your power
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    Re: Need help with 1/2 scale truck
    #16
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    Quote Originally Posted by ProtoDie View Post
    cool looking truck!
    I agree with previous posts
    one caliper on the rear will stop it

    1. I would run a 1/2" to 5/8" master cylinder,
    2. 8-10" dia rotor
    3. if the MC is low on the frame, try adding a 2 lb residual valve
    if still not good enough
    4. add a 4 piston caliper.
    I run 4 piston wilwood, part # 120-6818 caliper with brake pads 150-8850K on single rear brake buggies
    pricey though. A used motorcycle caliper should be able to do it too

    3. make sure you have enough throw / leverage on the pedal. depending on the pedal location, may have to go to a hanging pedal to increase leverage

    and bleed, bleed , bleed and re bleed the brakes good. tiny bit of air in the system can take away all your power
    http://www.nexgenoffroad.com/product-p/798520r3.htm

    Could something like that be used? And if so how do I match up calipers to it?

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    Re: Need help with 1/2 scale truck
    #17
    Senior Member darwinpayne2000's Avatar
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    Sorry for the delay. Work intervened. As I stated the hub is a standard go kart hub that you find on a lot of websites with a 4 on 4 inch bolt pattern. The spindle is a 3/4" grade 5 bolt that's welded to the spindle assembly. This design is borrowed from the Shredder II buggy plans.

    The front brakes are my own addition. The rotor is a 6" x 1/8" minilite with a 2" center hole. This makes it slide right onto the hub. If you're running 10" tires, you could go with a 7" rotor for more stopping power.

    I bought 3" and 2" bimetal hole saws and cut a donut ring out of 1/4" plate steel. Weld-on tabs would probably accomplish the same thing, but I thought the ring would make it easier to get everything perpendicular to the hub. Also, in hindsight, 3/16 plate steel or just tabs would have been sufficient. I drilled the mounting holes through the ring, using the hub and the rotor as the jig/mockup for drilling the holes.

    I cut a rectangular piece from plate steel as a bracket for mounting the caliper. I drilled a 3/4" hole for slipping the bracket onto the spindle. I slipped the rotor onto the hub, then figured out the distance and the hole spacing for mounting the caliper onto the bracket. the bracket needed a big notch in the end to clear the caliper. I fitted everything together to verify alignment, then I tack-welded the donut to the hub. The rest was just welding everything up.

    The pictures will probably explain the rest of the story. After I built the front hubs for 8" tires, I moved to 10" tires with a different bolt pattern. (Yes, everything looks rusty. A work in progress, I'm afraid.)

    The minilite rotor is listed on Ebay, along with the go kart 150 brake calipers and the master cylinder. I've included pictures of each

    IMG_2255.JPG IMG_2259.JPG IMG_2263.JPG IMG_2258.JPG
    Attached Images Attached Images
    Last edited by darwinpayne2000; 03-22-2019 at 02:55 PM.
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    Re: Need help with 1/2 scale truck
    #18
    Senior Member darwinpayne2000's Avatar
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    Here's the additional pictures of the items on Ebay. Apparently, there's a limit of 5 pics per post.

    If you're interested and want more precise measurements, let me know.

    s-l500.jpg s-l1600.jpg s-l1601.jpgs-1602.JPG
    Last edited by darwinpayne2000; 03-22-2019 at 02:53 PM.
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    Re: Need help with 1/2 scale truck
    #19
    Senior Member darwinpayne2000's Avatar
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    Oops! Double-posted.
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    Re: Need help with 1/2 scale truck
    #20
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    Quote Originally Posted by darwinpayne2000 View Post
    Here's the additional pictures of the items on Ebay. Apparently, there's a limit of 5 pics per post.

    If you're interested and want more precise measurements, let me know.

    s-l500.jpg s-l1600.jpg s-l1601.jpgs-1602.JPG
    Thsnks alot for the info!

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