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Radio Shack Extreme Machine: Modified with 4:1 gear reductions

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Radio Shack Extreme Machine: Modified with 4:1 gear reductions

Old 05-11-2012, 10:40 AM
  #1  
Tyco Bandit King
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Default Radio Shack Extreme Machine: Modified with 4:1 gear reductions

Back in the day radio shack made the Extreme Machine and it was the first of the giant 4WD trucks with dual 540 motors and later came the identical Nikko Hercules. They had tons of power once they got rolling but when you would try to climb a big hill or cross a mud bog the power just wasn't there. I remember trying soo many obstacles off-road that it had plenty of potential to conquer but just not enough power. Running a 7.2v 1500mah battery gave it about 5 minutes of run time which was horrible. Enough of that bull *censored*.....
Using RC4WD's 4:1 gear reductions on the truck I must say, its a whole new truck. I had to modify the housing to get them to work but it was no big deal. This alone makes a major difference on run time. I also cut the front bumper for more clearance and mounted the 8.4v 5000mah battery up front for better weight transfer. The rear differential is locked as well.
Improvements:
More than 5x the torque
1 hour+ run time when doing nothing but climbing
Much steeper hill climb abilities
Will go through almost anything off-road
This truck now deserves the title of the Extreme Machine soo much infact that it can even blaze through 2-foot tall grass without even slowing down with both diffs open where a 2.2 Axial SCX10 kept getting stuck.
I posted a short hill climb video at the bottom
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Old 05-13-2012, 02:27 AM
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vintageshack
 
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Default RE: Radio Shack Extreme Machine: Modified with 4:1 gear reductions

Nice! Now to upgrade the shocks!
Old 05-23-2012, 08:17 AM
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Tyco Bandit King
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Default RE: Radio Shack Extreme Machine: Modified with 4:1 gear reductions

I think im gonna wait to do the shocks when I 4 link the rear end to get more flex. Although its pretty cool the way it is stock.


I did a quick hill climb using the hercules body. Its a lot steeper than it looks haha

Check the video below:
http://i1214.photobucket.com/albums/cc484/4runnerhouse/3700246b.mp4
Old 12-18-2016, 11:10 PM
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Kstar9
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Tyco Bandit King, I have an Extreme Machine and I would like to make the same upgrades you have made. I'm very frustrated with the low end torque. Can you post a parts list and where I can find them?

Thanks!
Old 08-23-2017, 10:18 PM
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Tyco Bandit King
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Rc4wd has the 4:1 reductions. I'm about to post a bunch of YouTube videos and the update of the truck now

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