heatsink vs fan
#16
I feel that since there's usually a bit of airflow over the motor while the car is moving anyway, that a heatsink would be more effective if you could use only one.
Personally, I have a heatsink on my motor and since I don't compete in anything other than my local on-road club, I just cut a 3/4" radius semi-circle in the windshield in line with the motor. It dropped the temp by about 40 degrees.
Personally, I have a heatsink on my motor and since I don't compete in anything other than my local on-road club, I just cut a 3/4" radius semi-circle in the windshield in line with the motor. It dropped the temp by about 40 degrees.
For example, a hole in the windshield. Only GP classes allows holes to be cut for engine cooling....
#17
thank you to everyones suggestions.
I will start doing some testing soon, all within a couple of hours to see whats the best set up regarding lowering temps.
I will start doing some testing soon, all within a couple of hours to see whats the best set up regarding lowering temps.
#18
You can get passive heatsinks (no fan) for computer CPU's and chipsets, try finding a 'fan only' design......you won't
Skiddins
#19
not forgetting the fan is also prone to wear and tear as well cogging & jam. you need to keep some for standby.
#20
Direct use fan to cool motor !
Yeah Racing Fan had Ultra Hi RPM !
Yeah Racing Fan had Ultra Hi RPM !
#21
#22
fan blowing just on motor is almost useless. first you need to draw heat from the motor to the heatsink that has much higher surface area and then use fan or even airflow to blow the heat away from the heatsink
#23
#24
I would hardly think a couple of fans would draw that much current that you would notice a difference in car performance. Most 25mm fans draw around 100ma.
If anything, the 6v pack that people run in addition to the lipo would be more of a disadvantage with the extra weight.
If anything, the 6v pack that people run in addition to the lipo would be more of a disadvantage with the extra weight.
#25
I agree too... the additional batt is to help them with the weight instead adding more iron bars. RnR car is 1.4Kg for example.
#28
#30
Doesn't say how much it weighs, it is also only any use on a motor with lots of cooling holes in ti, most don't.
Skiddins
Skiddins