Cooling fan

[Maxx Trooper]

Now i know El Pirate did this, cuz i remember reading the thread. https://www.rcnitrotalk.com/forum/showthread.php?t=18230&highlight=fan well tonight i was in Radio Shack and saw that fan for $4.95 and i said I'm gona do it. so i grabbed that, a switch and some misc connectors. stupid me, bought D batteries thinkin.. bigger the battery, the more power... wrong. so i got 3 packages of D batteries with no use because they wouldnt power then fan. so ne ways yadda yeadda yadda here are the pic.

now i have to go through my stash and find some 9V connectors because i know i have some from my last LED project.

later

o yea i forgot to mension, i had this thing on for like maybe 5 min and the metal around the fan got ice cold. cooler fuel and cooler air going into the engine. but i have to figure out a way to protect the fan so i dont smash it up like El Pirate did.

 

[AC48]

That's pretty cool, has it noticably raised power??

 

[Maxx Trooper]

i got no idea. its 10:30 at night, and i need to return the crap i have no use with (D battery holders and D batteris). if i get my Lamps hooked up on my buggy, i might take it out for a spin. the cold air, i can feel it all the way back behind the buggy. that little fan blows a lot of cold air. Now what i need is a temp gun to measure the difference...

later

 

[Ryhton]

Well let us know how it works out. :smoke:

 

[Error401]

Seems to me that the benifit of the extra cooling will be vastly outweighed by the increase in weight. ie, the power to weight ratio will drop and it'll decrease in overall performance. Sure, it might drop the temp a tad when not moving, but what's the point of boosting the idleing HP?

Try strappping a small block of dry ice to the head, it's a bit more effective than lugging arround an extra battery pack.

 

[Nitro_Freak]

if it cools it too much then it's really bad for the engine cuz the parts don't expand causing excessive rubbing between all the engine components

 

[uDi_MP7.5]

And moreso than the heat, it's the lack of lubrication that will ruin an engine. So strapping dry ice on the engine head is pretty pointless. At very high temperatures as the metals expand and therefore become softer, and that might accelerate wear, but lubrication is a much bigger factor in engine life than temperature.

Back on topic, realise that colder air flowing at the air filter - is the same as running on a cold day. Colder air is denser, and therefore more oxygen will get packed in for a given amount of air, and basically the engine will run leaner.

That's why you should be richening up engines on cold afternoons/nights - to compensate for the leaner running.

I am with error401 on the power-to-weight ratio issue; and it's all good doing something like this for fun, but just realise that from a performance standpoint you are probably doing more harm than good.

-uDi

 

[Maxx Trooper]

the fan bearly weighs ne thing, less then the wing on the back of the buggy. and shitt its a little 9V battery, u guys are talkin like in weighs 10 lbs.

o yea Error 401 thanks for the smart ass comment.

later

 

[Error401]

And moreso than the heat, it's the lack of lubrication that will ruin an engine. So strapping dry ice on the engine head is pretty pointless. At very high temperatures as the metals expand and therefore become softer, and that might accelerate wear, but lubrication is a much bigger factor in engine life than temperature.

-uDi

The dry ice thing was at about a .015 on the seriometer. Anyone that would seriously put a block of super cold poop on their head would need to get their noggin checked (unless they were running in very hot ambient conditions). That comment was there for pure WTF effect. But you are right, it would do way more harm than good in normal running conditions.

Now if you took a small block of DI and drilled a hole in it for the fuel tubing going to the carb, now that might (and I stress might) make the engine perform better due to colder fuel going to the engine. Then again, it might congeal (sp?) the oil in solution and cause a lean run, and thus damage. Still, you could also do the same thing with the so called CAI filter extenders and really have a cold air intake. Now that just might work, and shouldn't add much weight at all to the gross weight. Hmmm. Now where's that party store?

 

[olds97_lss]

This is right up your alley. A bit more practicul and important use Cooling Beer

This guy used a peltier electronic cooler to cool a glass of beer.

 

[Error401]

Screw that, I want a jet powered beer cooler