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Old 02-07-2005, 01:40 AM   #16
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So basically those who run the fans run them because they need the weight and the 3-4C temp drop may let them run another tooth of pinion...

cool

Mods, thanks for fixing my title.
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Old 02-07-2005, 09:57 AM   #17
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On my XRAY the drop in temperature is between 20 and 30 F. Others using the Associated TC4 dual fan kit report up to a 40F drop.
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Old 02-07-2005, 10:07 AM   #18
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i was racing with a guy who had two fans on his Orion 8x2 v2, without the fans he was melting solder and the motor would come unwired
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Old 02-07-2005, 11:31 AM   #19
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Quote:
Originally posted by primusblowsgoat
i was racing with a guy who had two fans on his Orion 8x2 v2, without the fans he was melting solder and the motor would come unwired
WOW!

Ok...I suppose the small fans DO have a place and just aren't useless additions.

I suppose sometimes I'm just too "old school" thinking in an old mans voice:

"back in my day, we didn't need little fans on our motors...we simply let them melt and bought new ones...AND WE LIKED IT!"

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Old 02-07-2005, 01:11 PM   #20
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I saw pictures in another thread, where people made air tunnels out of lexan (or something similar), which have an air-intake where the out-come pointed to the motor. Have some of you guys experiented with that? And measured temp differences?

It should add less wight...
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Old 02-07-2005, 02:55 PM   #21
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thats insainly hot to metal solder off your motor tabs, im surprise the motor dident seize at those temps
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Old 02-07-2005, 03:42 PM   #22
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I use 40mm size fans on my brushless controllers and it makes about a 40F difference (120F instaed of 160F). I haven't tried the tiny ones that I have seen on many of the pro's cars. I use the slightly larger 40mm fans as mentioned above.
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Old 02-07-2005, 03:51 PM   #23
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no actually its nto that hot to melt solder off motor tabs. it happens when ur gearings off or you wanna squeeze that last bit of top end out
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Old 02-07-2005, 05:48 PM   #24
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I believe most common 60/40 solder melts around 350 deg..........the unsoldering of wires and brushes from a motor happens once in a while but thats way hot for a motor.....
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Old 02-07-2005, 06:17 PM   #25
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God I have been running a fan for years, whenever I don't I have problems. With a Brushless the fan goes on the speedy not the motor. When I run brushed it's more on the motor side of things.

From testing my Ram injection system I have been playing with helps big time. Might actually hit the track with it this week. It's pretty hot in Australia right now (I think today is over 100F) so every thing helps.
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Old 02-07-2005, 06:32 PM   #26
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About how much would one of these fans, a pair of stainless screws and locknuts weigh? My car is about 30 grams under weight
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Old 02-07-2005, 08:55 PM   #27
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I do the same system that Jon Kerr does and have the same Pherris wheel system. Get the motor freezing and then use a fan. I notice more punch at the end of a race and that's usually in 19t or stock.
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