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Old 12-13-2012, 08:02 AM
  #145  
TechyJoe
 
Join Date: Mar 2004
Location: Wayne, PA
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Default RE: Skidoo Rev XP snowmobile hop-up

Motor upgrade

I've also been continueing to work on that motor upgrade. I would like a little more speed and power so I've been trying to figure out the best way to fit in a full 540 brushless.

I scrapped the pully idea. This was cuasing to many problems with binding etc.

So, I went full circle back to the modified gear systems. Here are my steps:

1) I purchased a 3mm reamer/tap kit from the local hobby store.
2) Drilled 3mm threaded holes into my motor to fit the existing gear housing. The holes are 7mm from center.
3) Used the threading tap to add screw threads to the holes
4) Cut a large slot into the top of the chassis tunnel so the motor has room to fit in.
5) Now the gear housing will need to be beefed up and re-inforced like I did for the Himax motor so the torque does not rip it apart.
6) I'll be adding some fiberglass to fill in the slotted area around the motor to seal everything off.

Here are some pictures of my progress so far.




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