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Old 12-10-2006, 04:18 AM   #421
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Hi everyone,

At todays end of year enduro I managed to run for 25 min on one battery at full race speed. These motors are so efficient, after 25 min (4800 lipo) and no heat sink, the motor was only just warm.

http://www.rctech.net/forum/showthread.php?t=139861

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Old 12-10-2006, 06:47 AM   #422
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Quote:
Originally Posted by SlamMan
Anyone have some advice on how I should setup the profile of the GTB with the 13.5? Is anyone running anything other than one of the stock profiles?
I ran profile #3 on mine and it work pretty well
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Old 12-11-2006, 10:21 PM   #423
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Anyone else tried installing the velociti heatsink sleve on a 4300 or a 13.5? I purchased two heatsinks today and getting the sleeve onto the stack or whatever its called is HARD!!! In fact I was using the "endbell" to move the sleevesink the last two mm and broke of two of the three endbell screws into the can. It certainly doesn't slide on like the standard purple sleeve. I got the thermal paste on and followed the directions to the letter, and I am no hack when it comes to delicate stuff, but man, I can't imagine that the resistance I felt was the experience Novak intended when tey designed this sleevesink for these motors. The worst part was that I was past the point of no return and couldn't get it to budge either way! I suppose I'll call Novak tomorow and see what gives.
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Old 12-11-2006, 11:31 PM   #424
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I have the integrated heatsink installed onto my 3.5 motor, it was a neat slip fit. I have heard that some are tighter than others, which is fairly understandable when you have a very thin walled aluminium extrusion, and a machined motor stack to deal with. They have manufacturing tolerances which may be a bit too loose.

There is a trick, you can warm up the heatsink by placing it in some hot water or an oven (Not Microwave) to make it expand a little, it should just slip on. But that creates it's own problems when trying to get it back off again.

Regards,
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Old 12-12-2006, 12:36 AM   #425
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I managed to destroy a 4300 trying to put the heat sink on. It was the least awesome R/C experience ever.

Use the old purple ring to set on top of the heat sink and gently tap it into place. It's very clearly unable to be removed once it's on there, and can't be twisted, so make sure you've got it right where you want it.

I personally think the instructions for the heat sink should be more clear, with warnings about not being able to shift or remove it once it's started sliding on the stator. It works damn well though, and cools the motor significantly.
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Old 12-12-2006, 05:07 AM   #426
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Well thats two of us that have destroyed 4300s installing the heatsink. I agree with you about the instructions. Now I have a useless 4300 WITH a brand new heatsink attached. What a great 70$ paper weight.
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Old 12-12-2006, 08:56 AM   #427
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You guys should both contact customer service today at 949.833.8873 or [email protected] and I'm sure we can get you both taken care of!
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Old 12-12-2006, 09:31 AM   #428
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Quote:
Originally Posted by Evicerator
You guys should both contact customer service today at 949.833.8873 or [email protected] and I'm sure we can get you both taken care of!
That's cool man, thanks! I didn't think to call since I figured it would be considered user error, but if multiple people are having trouble, maybe it's worth looking into. :-)
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Old 12-12-2006, 04:32 PM   #429
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Great News! I called Novak this afternnon and they are going to take care of my situation. Thanks for the suggestion Evicerator.
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Old 12-12-2006, 05:28 PM   #430
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The trick is if the Sleve-Sink is tight to Heat it up with at Heat gun as you put it on.

Some fit fine, no problem, others need a little heat to loosen up the sleeve a bit.
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Old 12-13-2006, 11:16 PM   #431
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Here are some pics of my GTB and 13.5 in my CRC 3.2R. I haven't had a chance to try it out yet, I've been to busy to make it out to a practice night at our local track; no brushless allowed on race nights either. I've got it geared with a 34/88 64p. (Sorry about the quality of the pics)
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New Novak Stock Brushless-img_0839.jpg   New Novak Stock Brushless-img_0840.jpg   New Novak Stock Brushless-img_0843.jpg  
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Old 12-13-2006, 11:30 PM   #432
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og_capone,
What servo is that?
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Old 12-13-2006, 11:40 PM   #433
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It's the JR3650
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Old 12-14-2006, 01:02 PM   #434
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Does the Novak 13.5 come with the larger bearing and end cap? The NOvak site has the SS upgrade kit that comes with a large bearing, new end cap, and a sintered rotor ..... at my hobby shop the have only the sintered rotor, which leads me to believe that the 13.5 already has the bearing upgrade.

And does the sintered rotor make a performance difference?

I know this question has been answered before, but i don't feel like searching page by page for the answer.

Thanks in advance!
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Old 12-14-2006, 01:44 PM   #435
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Quote:
Originally Posted by shaggys40oz
Does the Novak 13.5 come with the larger bearing and end cap? The NOvak site has the SS upgrade kit that comes with a large bearing, new end cap, and a sintered rotor ..... at my hobby shop the have only the sintered rotor, which leads me to believe that the 13.5 already has the bearing upgrade.

And does the sintered rotor make a performance difference?

I know this question has been answered before, but i don't feel like searching page by page for the answer.

Thanks in advance!
you will have more drag brake and you will have better performance
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