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Old 07-13-2004, 08:04 PM   #1
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Default liquid cooled rc engines?

Hey guys, I've been out of rc for a few months, been concentrating on motocross. While working on my bike a few days ago, I got a crazy idea. How cool would it be to have some kind of liquid cooled engine system? All it needs is a pump and a radiator. Then some kind of head or hoses running around the cylinder to draw away heat. My bike has a semi-hollow head, in which coolant flows into and around. Anyone think it could be done?
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Old 07-13-2004, 08:07 PM   #2
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Been done. Take any motor that can have a marine head bolted to it (novarossi and OS makes them) and you have a liquid cooled head. Attach a Perry Pump system to pump the fluid and some form of radiator system (in the example I saw it was a copper airplane fuel tank). Apparently it worked quite well.
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Old 07-13-2004, 08:11 PM   #3
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Just a note. It's a nice idea if only you run outlaw as rules say that in legal racing, your engine needs to be air cooled.
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Old 07-13-2004, 08:14 PM   #4
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Quote:
Originally posted by AMGRacer
Been done. Take any motor that can have a marine head bolted to it (novarossi and OS makes them) and you have a liquid cooled head. Attach a Perry Pump system to pump the fluid and some form of radiator system (in the example I saw it was a copper airplane fuel tank). Apparently it worked quite well.
Oh well, it was a good idea for a project while it lasted. Got a link or any pics?
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Old 07-13-2004, 08:27 PM   #5
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Quote:
Originally posted by Rob Hochberg
Oh well, it was a good idea for a project while it lasted. Got a link or any pics?
I saw it in RC Car around 2 years ago. It was installed on a T-Maxx. Sorry no other info.
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Old 07-13-2004, 08:41 PM   #6
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seems pointless anyway. Water would be boiling after the end of a run, besides who wants to tote all that water around with them in a car. For marine engines they just use whats there, pretty convient. What would be nice project someday if we could develope onboard electronic carborators to give you perfect air fuel mixtures.
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Old 07-13-2004, 09:52 PM   #7
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Quote:
Originally posted by tomkelley
seems pointless anyway. Water would be boiling after the end of a run, besides who wants to tote all that water around with them in a car. For marine engines they just use whats there, pretty convient. What would be nice project someday if we could develope onboard electronic carborators to give you perfect air fuel mixtures.
they already have electric fuel injection for r/c motors
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Old 07-13-2004, 10:32 PM   #8
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Quote:
Originally posted by tomkelley
seems pointless anyway. Water would be boiling after the end of a run, besides who wants to tote all that water around with them in a car. For marine engines they just use whats there, pretty convient. What would be nice project someday if we could develope onboard electronic carborators to give you perfect air fuel mixtures.
Not that much coolant would be on board at all, maybe a few fl. oz. so that would add maybe 4 or 5 oz. to the car, I doubt it would be noticable, and the engine would run a lot cooler, and make plugs last longer too.
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Old 07-13-2004, 11:22 PM   #9
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Quote:
Originally posted by Rob Hochberg
Not that much coolant would be on board at all, maybe a few fl. oz. so that would add maybe 4 or 5 oz. to the car, I doubt it would be noticable, and the engine would run a lot cooler, and make plugs last longer too.
is the fluid going to circulate in radiator?
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Old 07-13-2004, 11:51 PM   #10
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Default cooling

Quote:
Originally posted by tomkelley
seems pointless anyway. Water would be boiling after the end of a run, besides who wants to tote all that water around with them in a car. For marine engines they just use whats there, pretty convient. What would be nice project someday if we could develope onboard electronic carborators to give you perfect air fuel mixtures.

They do have anti-freeze in these modern times They do have it in the northern region where you live...........dont they
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Old 07-14-2004, 02:12 AM   #11
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I'm always wonder, IFMAR's rule prohibit water-cooling, but is using heat-pipe to induct heat to larger heat-sink also be consider as "water-cooling"?

For those who don't know heat-pipe is, try Lord Google..
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Old 07-14-2004, 09:55 AM   #12
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Default FUEL INJECTION FOR SALE.

Quote:
Originally posted by Marcos.S710
they already have electric fuel injection for r/c motors
somebody showed me this link to a thread called ELECTRONIC FUEL INJECTION FOR SALE.

heres the pic....



heres the description:
Quote:

Here is what the original ad states:

Wouldn't it be great if your mechanic could tune your engine perfectly every time, and you wouldn't have to worry about whether or not your engine was too rich or too lean? Even better, wouldn't it be great if your mechanic could ride along in your model, and adjust it for different conditions that would allow the engine to accelerate and perform better? Sounds like sci-fi stuff ? Enter PC/RC.
PC/RC has been manufacturing hobby electronics such as the Digi-Temp digital temperature probe and Digi-Tach tachometers for years, and realized that if they could put all of that technology into one magic box and add a little software, a system could result that could automatically tune your R/C gas engine. After more than a year of testing and development they had a product dubbed the Electronic Fuel Regulator, or EFR, which was light, performed as expected, and had minimal draw on the battery pack.

Now the average or expert racer can have his engine tuned precisely, while in the heat of the competition, and without worry. How does it work? Think of the EFR as fuel injection. Simply stated the EFR consists basically of three parts - the valve, the controller, and the sensor. The sensor transmits information back to the controller, and tells the valve the proper amount of fuel to allow, based on the carburetor opening. The carburetor opening is sensed via the servo output from the receiver.

Installation Pick a suitable location for the processor, and mount it securely. A small hole is necessary in the exhaust manifold, about 1/4 inch (6mm) from the mouth of the manifold where it attaches to the engine.. The valve simply installs in the fuel line between the fuel tank and the carburetor inlet. Now plug the unit into the receiver and plug the throttle servo into the controller and you are ready to program.
Why is the engine running at a cooler temperature? With manual tuning, a mechanic is trying to find a compromise between two needle valves. The transition from low to high requires a richer setting in the middle, to overlap and a leaner setting on the top needle. This leaner setting on the top is what causes most high temperatures, and premature engine failures. Using the EFR is like having many synchronized needle valves, and since they are not compromising, the results are settings which are more precise and not as lean; therefore cooler.
Another thing which has been observed and could be very important to many drivers is the ability to spot a problem before it becomes a bigger problem. If the engine has been running fine and then suddenly starts to run richer and richer you can bet that the rod bearing or something is going bad inside the engine. In testing there was enough advance warning that complete piston/sleeve replacement was avoided by a simple change of the rod. How many good engines will this save? There will also be an occasion when the unit fluctuates between rich and lean. A check of the fuel tank for leaks or the muffler coupler for rips will usually find the culprit.
The biggest difficulty with gas R/C is the inability to get engines to run right. Some have actually quit altogether because of the frustration of trying to tune the carb or finding a mechanic that could tune it well enough to be competitive. Using an EFR is going to change all of that. The EFR, with its enhanced car programming, will extend the life, and increase the performance of car engines as no product has done before. This same thought process is exactly what R.O.A.R. saw as a good enough reason to approve the product for racing.
The future is here and your radio-controlled model can now benefit from a technology that will not only increase your enjoyment and satisfaction, but ultimately improve the hobby.

EFR 801 benefits are :
Optimum mixture throughout the varying throttle setting
Improve fuel management
Reliable engine performance in varying weather conditions
Consistent performance throughout operation
Increase engine life
Automatic shut down on power failure
No adjustments necessary
Maximizes performance
List Price: US$159.95
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Old 07-14-2004, 10:25 AM   #13
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seems pretty cool but can't be ROAR, EFRA, or IFMAR legal. The nice thing is that it could take a lot of frustration beginners are experiencing with engine tuning.

It seems that you're supposed to just richen up the HSN, and let the device take over, but what about the LSN?
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Old 07-14-2004, 10:37 AM   #14
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Default Re: FUEL INJECTION FOR SALE.

Quote:
Originally posted by mop_iko
somebody showed me this link to a thread called ELECTRONIC FUEL INJECTION FOR SALE.

heres the pic....



heres the description:


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i already owned one of these!! bought a year and a half ago!!!!!!!!!! thanks any way mop
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Old 07-14-2004, 02:38 PM   #15
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there was a video of a water cooled RC car floating around RC tech for a while. IDK where it is now.
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