Originally Posted by tel
The Much More motor cooler use a Peltier device to cool the motor. A Peltier device is just a bunch of P/N junctions in series that provide a cooling effect due to current flowing through the junctions. The Pelier "cold" side heat is transferred to the "hot" side along with the heat generated by the current flowing through the device. The heatsink and fan need to remove the heat from the Peltier process and the heat generated by the current flowing through the device. At best the Peltier can cool the device around 40 degrees F below ambient air temperature. This is not an absolute as there are other factors and sources of heat. Here are the things you can do to improve the cooling effect:
1 - get device and car out of the sun, this is adding heat to the whole system
2 - increase the current flow of the Peltier device by increasing the input voltage. DO NOT go over the recommended input voltage as it could cause damage.
3 - change the fan to a higher CFM rating to improve the heat dissapation. Any computer supply store can help you out, the fan is likely a 60mm (I don't have one so can't say for sure).
4 - There is a slim change you got a dud product but try the other things first as RMA's to any company are painful.
A Peltier device should last for years it is not allowed to dramatically overheat (run at greater than spec'd input voltage/current or not given adequate cooling). Good luck.
1. Yes, getting the unit / car out of direct sunlight will help with the cooling process.
2. This can be done, but if the unit is damaged due to excessive current, it will not be covered under warranty
3. This will void your warranty - not recommended
4. There could be a slim chance that the unit is defective. If you feel the unit is defective, contact the shop where you purchased, and make arrangements to have the unit returned to Much More.
The motor coolers will not "ice" your motor on a real hot day, it is just not possible, especially with high humidity. The coolers are designed to reduce the ambient temperature of the motor, 20 to 40 degrees F.
I just raced this past week in 90+ F weather, and my cooler was able to lower the temp. of the motors (around 50 degree F), but not nearly as cold as it gets during carpet season or semi-warm day outside.
Also, do not leave the cooler running the entire time while at the track. Only hook up to a power source while cooling the motor.
Hope this helps.