14t pinion conversion

This topic has 14 replies, 6 voices, and was last updated 21 years, 3 months ago by ph2t.

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- June 4, 2004 at 12:26 am #12178
  ph2t
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  Posts: 2088
  This was bit of a hack job.
  
  I dremeled out the inner sides of the gearbox that surround the pinion, then made sure it fit. When I came to put it together I noticed that the pinion was too wide, it was hitting the diff gear. So I ground it down to just over half it s original width.
  
  I had to add extra spaces under the motor, I just use folded electrical tape. It works well and I can make custom widths.
  
  So far so good, the gearbox has been cleaned, lubed and sealed. Now I m just waiting for a busted ball mount to dry and stiffen and I ll be ready to test it out….
  
  :question:
  
  ph2t.
- June 4, 2004 at 12:31 am #51996
  betty.k
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  Posts: 2487
  ay carumba!! she gonna launch into orbit off the right kinda ramp!!!!:p:8ball:
- June 4, 2004 at 1:23 am #51999
  merc-blue
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  Posts: 1547
  nice…
  thats all i can say.. lol that things gonna kill my xmod 🙁
- June 4, 2004 at 1:52 am #52000
  ph2t
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  Posts: 2088
  thanks fellas,
  
  I’m having issues though. fwd isn’t as fast as rev. I think the motor isn’t sitting %100 flat….
  
  hmm……
- June 4, 2004 at 7:42 am #52017
  TallduDe
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  Posts: 1430
  god demn man. nice werk.
  
  ever considered put extra cells in there muhahahahahahahaha
- June 4, 2004 at 1:17 pm #52024
  ph2t
  Participant
  Posts: 2088
  dude, in the 2nd picture at the back, you see those purple fuzy things? they’re li-ion 3.6V 1.3Ah batts, yeah baby! 🙂 gotta make a charger for them first but….
  
  I can’t get the grub screw thingy to sit tight enough, what a POS! The pinion shears loose after a couple of fwd/rev motions, so I gotta fix that first…..
  
  ph2t.
  
  Edited by – ph2t on 04 June 2004 09:18:07
- June 4, 2004 at 1:18 pm #52025
  dgs73
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  Posts: 2179
  strewth mate. Over the top. Lokks like you get your rubber off Bithed, would I be right? They make much difference over the stock treadies? Video later please…
- June 4, 2004 at 1:37 pm #52027
  ph2t
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  Posts: 2088
  the rubbers came from http://www.minizstore.com . Their prices are a little higher than rcmart, their shipping is good. They also have stuff that rcmart doesn’t have….
  
  I like these tyres, I like them a lot more than the stock treads. they grib a lot better, especially on concrete and indoor smooth surfaces like tiles and wooden floorboards.
  
  In the grass the car seems to glide a bit over the terrain, unlike the stock treads.. the outcome is that the front end doesn’t bounce around as much. I still have spring shocks on the front since I busted the shaft on one of my oil shocks, so that makes the front a bit stiff anyway…
  
  ph2t.
- June 4, 2004 at 1:58 pm #52028
  betty.k
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  Posts: 2487
  my tip for tightening the pinion is to lube the thread. you sholud really do this to all metal to metal threads, they won’t strip as easily and you can tighten a little more than without. either that or make a little flat spot on the motor shaft where the screw will sit:8ball:
- June 4, 2004 at 2:13 pm #52029
  merc-blue
  Participant
  Posts: 1547
  yeh grind down a flat spot like on a standard motor also use teflon tape it makes it sld in easy and also helps make sure it wont fall out
- June 4, 2004 at 3:07 pm #52030
  TallduDe
  Participant
  Posts: 1430
  Quote:
  
  dude, in the 2nd picture at the back, you see those purple fuzy things? they’re li-ion 3.6V 1.3Ah batts, yeah baby! 🙂 gotta make a charger for them first but….
  
  holy shite dude so those batts are the same size as normal nimhs aaa? so if my math is right
  
  4 times 3.6v = 14.4
  opposed to
  4 times 1.2V = 4.8
  
  holy fuck is all i can say :smiley16:
- June 4, 2004 at 3:23 pm #52032
  ph2t
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  Posts: 2088
  nah, they are %150 bigger. two of them would be used, 7.2V….
- June 4, 2004 at 3:35 pm #52033
  Jowlz
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  Posts: 153
  aite bruce let me know how those batts work.
- June 4, 2004 at 4:06 pm #52034
  ph2t
  Participant
  Posts: 2088
  yeah, cool man. I think I’m gonna be making the charger myself, cause they are bloody expensive….
- June 6, 2004 at 5:00 pm #52078
  ph2t
  Participant
  Posts: 2088
  UPDATE
  
  Well I finally got the pinion to stay on tight and bloody hell, this thing is faaaaast! I believe I have now broken the 40kph barrier or at least I have achieved close to it.
  
  I’m happy that the madforce still wheelies when going from rev to fwd. It doesn’t wheelie from a standing start anymore like it did when I had the 12t pinion in it.
  
  I still think I can get another %10 – %20 out of it with a faster motor. Currently it’s a plasma dash armature, I’m sure I can get it to go faster.
  
  You gotta love the torque though, with 14t it’s still poopin wheelies, you have nelly to thank for that! lol….
  
  ph2t.
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