Anomie
Posts: 3356
Joined: 4/15/2005
From: Liverwurst, CA, USA
Status: offline
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quote:
ORIGINAL: RockClimber
Whats up guys. What a great forum. Reiko, you are a master craftsman....Since I don't have the funds, or machining equipment necessary to build a "one off," I am in the process of fine tuning my x-factor 2 into a rock climbing beast. I have to consider us nitro rock crawlers more of rockclimbers, being that we arent able to slowly creep, because of all of the previously stated gearing and torque issues. Reiko will probably be the first viable nitro rock crawler out there -- and I can't wait to see it. I have been fascinated with the liquid cooling ideas floating around for nitro ngines, and I wanted to get some expert opinions from you guys on my idea.
How about modding one of the rc electric boat cooling kits?? Place the aluminum coil inteneded for the electric engine, over the nitro cooling head, and then run tubing to a small fuel tank filled with a 50/50 mixture of antifreeze and water. the side of the tank can be easily drilled and fitted with a small electric 9 volt motor. Attach a small impeller on the motor shaft, and then it should feed a continuous supply of coolant to the coils. Obviously, proper positioning of the impeller is key to ensure positive and continuous flow. A small nova cooling fan could then be directed toward the coils to help maintain a lower temp. Space constraint issues would be the 9 volt battery, and the coolant tank. Do you guys think that this idea is worth pursuing? Please shoot me soe feedback, so I can first se e weather or not that this idea is viabe before I start planning it out further.
It sounds like a good idea, and one that will certainly save some weight over more complex systems. The space limitations don't look too difficult to overcome, either. I think a small tank would be fine so long as there is adequate ventilation and/or some heat sinking. Some cooling fins to allow for better dissipation would work wonders in helping the fan. This way the tank could indeed remain small (maybe 4oz. or so) and keep from taking too much chassis space.
The motor shaft would need an o-ring or some other type of seal. This will also need to withstand a few hundred degrees of heat as well as the glycol itself. Once that motor begins to circulate the coolant, each part of the system can aid in it's heat dissipation. Just remember that once it's heated, it will build pressure and require room for expansion or some type of simple regulation. The pressure relief that I made is just a ball and spring, and will take time to adjust for proper operation. To me, this is the trickiest part of building a recirculating liquid system.
Keep us posted on your ideas and progress 
_____________________________
~Reiko~ RCU Car Forums Moderator
http://www.rcuniverse.com/forum/m_377662/tm.htm
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All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Rock Crawlers >> RE: Nitro Rock Crawlers Only 
RE: Nitro Rock Crawlers Only - 
Here it is. 
