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Putting a fan on top of Slipperential
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mothman
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Putting a fan on top of Slipperential - 06.17.2012, 01:10 AM

The slipperential I am running can be very hot sometime.. Is putting a fan on top of the slipperential a good idea?
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06.17.2012, 02:31 AM

It's not a bad idea, but you just pissed off BrianG

Heat is an inherent attribute of a slipper (friction) and so is wear. (why replacement parts are available)

Unless the heat is causing the handling of the of the vehicle to change I wouldn't bother.

But if it makes you feel better, go for it. Cooler is always better and will make things last longer, although it may just help "a little".

If you do please post up the temps you are getting now, and the temps you get after the fan. The more knowledge the better

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06.19.2012, 04:03 PM

A more efficient method would be a finned or other case for the slipperential. It already spins, might as well have its case act as a radiator while its spinning.

This would require a heat conductive case though, which would likely be metal, which is heavier. So it might not be worth the weight penalty. Less rotating mass is always better.


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RC-Monster Mike
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06.19.2012, 05:41 PM

There is no room for fins - the diff cup is aluminum and the slipper-side endcap has vents to promote better cooling, though. Slip generates heat, but the components can withstand very high heat without detriment. As Harold said, unless it is affecting handling in a negative way, I wouldn't sweat it too much. :-)

Last edited by RC-Monster Mike; 06.20.2012 at 09:37 AM.
   
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mothman
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06.19.2012, 10:19 PM

Quote:
Originally Posted by RC-Monster Mike View Post
There is no room for fins - the diff cup is aluminum and the slipper-side endcap has vents to promote better cooling, though. Slip generates heat, but the components can withstand very high heat without detriment. As Harold said, unless it is affecting handling in a negative way, I wouldn't sweat it too much. :-)
Mike,

What type of aluminum did you use for the diff cup? and what type of coating they have? are they hard coated or just normal black anodized?

Last edited by RC-Monster Mike; 06.20.2012 at 09:37 AM.
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06.20.2012, 09:36 AM

Hard anodized, teflon impregnated 7075 aluminum for the diff cups, Mothman.
   
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mothman
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06.21.2012, 02:34 AM

Thanks for the answer Mike. But I wonder why the slipperential cup wear faster than the front and rear diff cups (maximizer 7075-t6 cup). Is it normal for center diff to wear faster than front/rear diff?
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06.21.2012, 10:55 AM

Wear will be influenced by many things, but it would be reasonable to assume the center diff will wear faster than the front or rear for obvious reasons - the center diff distributes power to the entire vehicle, while the front and rear diff each see only a portion of the power provided by the center diff. :-)
   
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06.22.2012, 04:20 AM

Quote:
Originally Posted by RC-Monster Mike View Post
Wear will be influenced by many things, but it would be reasonable to assume the center diff will wear faster than the front or rear for obvious reasons - the center diff distributes power to the entire vehicle, while the front and rear diff each see only a portion of the power provided by the center diff. :-)
Sound reasoning that.

Mike, did the slipperential itself (or the cup in particular) change over the years? I mean since the first production runs.

Cheers homie, btw. It's about time we get in touch again!

Daf


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06.22.2012, 12:02 PM

The cup itself has not changed, but the endcaps have changed slightly with the thicker gaskets. Love to get in touch with you again, my Swiss buddy!
   
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