Build Thread Nitro Engine Radiator Build/Experiment :-D

[jnjritz]

I still think that a s shape up and down the head with spaces would cool it better than a tite wrap side to side.

 

[qaart]

Qaart I was not truely de-railing. Since you have a trailer you should hook up the water cooling system to it and pull it around! You have to admit it would be funny.

well maybe i might just do that

 

[MonstrousMikey]

i think its important to get the most surface area on the head covered to conduct the most heat out of it. so wrapping around like a spring would be just that. but as earlier mentioned the fins would be blocked. i apologize to the community for not realizing this topic has been posted, my error. i know i am not going to cure cancer by making a radiator system, its more for fun than purpose. if it works great, if it doesn't... i shoulda spend the 50$ on aluminum parts or a dynamite 086.

 

[frickenjoey]

Here is an idea, wrap as much of the case as you can and just the first couple fins so you still have some air cooling left....maybe?

 

[MonstrousMikey]

yeah. wrap it real close for about half the head or so.

 

[cwthomas75]

cooling sys.

Why didnt you go with aluminum?

 

[alpinehyperlite]

well maybe i might just do that

Sorry to re-derail, but its some actual advice......

you will kill your clutch if you do that. it wouldnt last more than one run pulling a trailer with weight on it around.

 

[frickenjoey]

Wow Apline.....I figured he would know I was joking on that one.....that would be pretty silly looking though

 

[alpinehyperlite]

i know YOU were joking, but not so sure bout him.........

 

[olds97_lss]

do not use copper tubing for a water line the copper will heat up all the way down the pipe.

Why is this bad? Is it because it just puts more heat in places your not planning for? Or is it just excess weight or possible leak points due to the extra needed solder joints?

I'm just curious as it seems like copper would be easiest to mess with. You could even make your own radiator out of it with fins since it's easy to solder to.

Like I said, I'm truly curious. Not trying to derail or start an argument. I had thought about messing with it years ago when I had a t-maxx, couldn't get that stupid thing to run cool (lower than 280F) ever... Looking back, I'm sure it was just my inexperience at tuning at the time. As it was one of my first RC's into the hobby 9 years ago.

 

[qaart]

i did some testing with this with my revo i put a 70cc tank filled with water and used the exhaust presure to push the water all the way through. what i found out is that the whole thing of copper tubing will heat up. from the engine to the front of the car which would make the water temp rise and defeat the purpose of this water cooling engine.

you will kill your clutch if you do that. it wouldnt last more than one run pulling a trailer with weight on it around.[/QUOTE]


not trying to start anything but rite now the clutch isnt the biggest worry of my revo. also i got it geared low and a high stall clutch

 

[frickenjoey]

I mean hell Qaart if you can get it to work it would be more of a novelty than anything else but it would have a certain "well I'll be damned" factor

 

[destrucktomaxx]

That certain "well I'll be damned" factor quickly wears off when the sound of a connecting rod moving at 35,000 RPM, unleashes the dogs of war when the wrist pin snaps and takes out a small dog across the yard. But it was funny right?! PSYCH!

i did some testing with this with my revo i put a 70cc tank filled with water and used the exhaust presure to push the water all the way through. what i found out is that the whole thing of copper tubing will heat up. from the engine to the front of the car which would make the water temp rise and defeat the purpose of this water cooling engine.

So basically what your saying is that...the laws of thermochemistry and heat exchange are wrong? So just because a little bit of hot air is blown into a a copper pipe will heat it up enough to the point where its HOTTER than the engine itself is? You DO realize that this very principle is how an actual automotive radiator works, right? Hotter to colder, heat will always travel to a colder spot and eventually the temperature will equalize. Though exhaust pressure is not blown into the system, unless engine damage occurs, the radiator WILL heat up considerably, and the engine will be 2-3 times as hot. This high temp will cause the coolant to raise its temperature as well, imagine that. But what's really cool is...is the fact that if ITS A SEALED SYSTEM, it doesn't matter how hot it is. A liquid under pressure will not boil unless its pressure exceeds the pressure rating of its vessel. It becomes superheated when under pressure and the sudden release of pressure makes it basically go...

So if your test is correct, then the exhaust gas will raise the temperature of the coolant solution to a point of uselessness, even after the exhaust gas itself has traveled through its very own heat exchanger (pipe), a ribbed, flexible piece of copper tubing, coolant solution, and the head/block of the engine.

Anyone of importance disagree?

 

[jnjritz]

NOPE!
I know i couldn't have explained it any better
Nice job.

And qaart. I would worry a little about your rigg. You wanted it to carry your tool box, 2 gallons of nitro, and 2 riggs. Ok lets break this down. A rigg mostly runs about 10 pounds. A gallon of water is like 8.36 pounds so i am going to say nitro is pretty close to that. Not to metion your tool box. Which i know mine weighs prolly around 15 pounds if not more.

riggs 10 x 2 = 20
nitro 8.36 x 2 = 16.72
and tools 15 pounds + ??? for the weight of the trailer itself

Grand total of 51.72 not including the trailer. IMO something is going to give.

 

[frickenjoey]

That certain "well I'll be damned" factor quickly wears off when the sound of a connecting rod moving at 35,000 RPM, unleashes the dogs of war when the wrist pin snaps and takes out a small dog across the yard. But it was funny right?! PSYCH!
Anyone of importance disagree?

Oh No I agree with you 100%. I never thought it would work in any constructive manner but some people are determined to try something no matter what you do so sometimes you just have to sit back and watch .....and laugh. So sit back crack a beer and "Hey watch this crap!":horsecrap

 

[RC Addict]

You guys don't REALLY think qaart thought any of this out, did you? I questioned just the weight of the fuel weeks ago. He just THINKS it outta work and is what he wants so physics be damned!

And about the radiator idea. It is a very nice idea in theory but isn't going to work in the real world. It would be too cumbersome and not efficient enough at scale. But, it NEVER hurts to try something that MIGHT have a chance of working. Faarts trailer? Not so much...

Anyone of importance disagree?

I KNOW I am NOT of importance but I whole-heartedly agree. 100%.

 

[TMAXX]

You could use a water cooled head off a boat. and i have seen fuel pumps that run off the pressure pulses of the engine. also i would just use silicon tubing to transfer the water around. you could also put a CPU/ESC fan on/by the motor and radiator (s). thats just my 2 minutes of thinking about it................

 

[moe7404]

years ago i read about a racer at bonneville that had a air cooled engine. he set up a spray mist on the head and cylinders of 50% water 50% methanol. cause he was realy leaning on it power wise. can you Imagen making 2 to 3 times as much power as stock for 5-6 miles then turn around in 60 min and make a second pass. at bonneville one of the hotest places on earth.

 

[alpinehyperlite]

years ago i read about a racer at bonneville that had a air cooled engine. he set up a spray mist on the head and cylinders of 50% water 50% methanol. cause he was realy leaning on it power wise. can you Imagen making 2 to 3 times as much power as stock for 5-6 miles then turn around in 60 min and make a second pass. at bonneville one of the hotest places on earth.

All nitro motors in land vehicles are air cooled.......

 

[frickenjoey]

All nitro motors in land vehicles are air cooled.......

Damn James....I just figured something out....is that why they call it a cooling head? Woh you are the coolest! They don't call you Super Trooper for nothing! where is Captain Obvious right?