forced air cooling

[roadkil]

if i built a system to force air through the motor for cooling would this damage the motor? here's my idea; i'd run a straw or some type of tubing from my car's hood scoop into one side of the motor and have the air exit on the other side of the motor. because my car is a rally car, i also planned to put an air filter from a nitro car under the scoop to prevent from forcing dirt in too.
will this work? if not, how could i modify it? would this do any but protect the motor from over heating?

[rocknbil]

No cooling would ever harm your motor but would help disperse the heat, making it run more efficiently.

Daumer's bodies (spelling?) used to make a truck body that came with a pre-cut hole in the windshield and a pre-shaped "tube" that perfectly fit inside the body along the roof and forced the air down onto the motor. I think mine is pretty thrashed but I can dig it out and see if I can get a pic.

I don't know if the straw idea will work, the holes would probably be too small to do you a lot of good. I suggest the windshield idea, and make a scoop that gets gradually smaller as it gets close to the motor, creating a venturi that will force air in that direction.

Another thing I did for a while was devise a bracket that firmly holds a 12 VDC CPU fan right over the motor. Splice the wires into your battery harness. It has VERY little draw and doesn't noticeably affect performance.

Overall it's a lot of work for very little reward. :)

[treepete]

yeah i put some cooling on my motor in the tc3 and it worked great. in a stratus body i made a hole in the center of the front grill area and ran a piece of 1/2 convoluted tubing up the hood and roof and then "L" down onto the endbell area. it worked great. i put a screen in the front of the tube to block rocks from getting in there. i ran a 3000 pack thru a MVP stock motor all over the driveway and it just got warm. not hot at all.(well, it was 50degrees F at the time, that helps too) i taped the convo tubing to the roof of the car on the inside so it would stay with the body while it was removed from the chassis. i think with some screen, some tubing and a little shoe goo, you could make anything, ram air cooling, hood scoop style or giant windshield-hole style...you could also use an old headlight insert as the "funnel" part of the system, assuming you dont use your headlight iserts (if they come with your body type) i made a solidworks model of a .030 thick lexan intake cowl that fits into 1/2 convo tubing. if youd like a copy of the model email me @ treepete@wi.rr.com, and i'll fwd you a copy... in case you know someone that can thermoform lexan for you...which i dont.:confused:

[roadkil]

sweet, so so type of cooling will work. wiring is not my thing, so i'll go with the ventri scoop setup. thanks a ton guys, that was just the info i needed:D

[roadkil]

wait, new question, should i take the current motor cover off or not and would using a rubber be stupid, would it melt- and the air filter is expensive and restricting, should i still use one?

thanks roadkil-

if you ahve any questions about the cars chassis, theres pictures in the thread called "rally tires"

[highroller]

S & K Products produced bodies that had channels you installed to the inside of body to divert air to the motor and battery. Guys also used straws, tubing and other items the problem was adding these items increased the weight of vehicles. For the oval guys this was not benefical for 2 reasons added weight and it could induce lift on some high speed tracks.

[roadkil]

does S&K have a website?

[treepete]

i looked at the pic of your car, and i have never seen that type before. if your motor cover comes off to add additional cooling, i would take it off. assuming that nothing will fly into or out of the motor area, it stays stable etc..
about the rubber hose. hmmm i never tried that, i stayed with the plastic family. i saw convoluded tubing at the auto store for use under the hood of a real car, so i figured that it would hold up under the heat, and it did, so i used that.
maybe you could remove the cover, drill a hole it it, attatch the tube and then re-install the cover./.. maybe drill some other "exit holes" opposite the intake hole in the motor compartment. then the cool air would rush around the motor and go out thru the exit holes. this is just an idea, again im not familiar with your particular chassis (based on the photo) make your mods, but dont let rocks etc into the motor area, cuz that ends up beign a big pile of suck.
hope this helps,
pete

[highroller]

S & K is no longer in business any more that I know of. They made a brush cutting tool, hood alignment tool and a spring tension tool none of which are available any longer.

The bodies they sold looked and had a MRP logo on the early versions like they purchased the molds and leftover bodies from them.

[roadkil]

great idea pete, that way there's always flowing air. if plastic holds up great, it's much easier to "mold". S&K is no longer around, disappointing. i finally have all of the info i need. thanks a bunch guys!:D i'll try to put the system together to night and if it works i'll put up more pics. thanks again roadkil

[treepete]

right on ! im looking forward to seeing what you come up with. send photos of the motor area if you can.
pete

[roadkil]

ok pete sorry for the wait, i did complete the project and i works but, not to keep the motor any noticably cooler. what it does do is keep rocks and dirt from getting in my motor. i can't put up pictures becasue i can't get a hold of a camera, but i did end up using the ventri system.
i have a large straw that pics up the air, the air then travels to a bag that the straw is glued too. the bag is around the motor. the air flows through to a smaller straw, and out the back like an exuast pipe. i have also found that when driving i rain or snow(ice tires thread) it's better to use 2 bags over the motor for extra protection.
thanks for your help. when i do find someone who'll lone a digital camera, i'll put up some pics

[TRX250]

I have forced air cooling on my RC10L3 Oval, I have a Green machine 3 and I can turn the motor and the Vents on the motor will actually hang below the car like a air scoop. It works too!