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sleebus.jones
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Posts: 650
Join Date: Dec 2005
Location: Houston, TX
06.30.2008, 03:21 PM

A bit of background from me first, I was running a 7700, and switched to a 5700. 7700 = hot hot hot, 5700 no problems at all.

Quote:
Originally Posted by GO-RIDE.com View Post
Wheelers are tough on temps with the bodies being so small and having poor ventilation. It also doesn't help that the batt, motor, and esc are so close together.
Agreed. The ZX-5 has one of the closest fitting bodies I've ever seen. I cut a hole in the front window and it helped, but it was still hot.

Quote:
Originally Posted by 83gt View Post
6900kv seems like a lot for 1/10th 4wd. perhaps a 5700 would be better suited to the task ?
Yep. 5700 is much better, 4600 better yet I think. The 7700 I had was fast as heck, but ran very hot. I can't imagine the 6900 would be much better.

Quote:
Originally Posted by 83gt View Post
Not technically. On 2s you'd be within the motors stated limits, but I found the 6900 and 7700 CM36 motors to run very hot even in a lightweight setup. In my 1/10th 4wd buggy, I was able to move from 7700 to 5700, gear it up a a bit to compensate for the lost top end, and I ended up with a setup just as fast, but with much more manageable temps. As a bonus, the runtimes were much better as well :).
I agree 100%. I had a similar experience, I just didn't gear up because the 7700 was pretty insane fast.
   
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