Would this work, or am I retarded?
I was doing some searches and found a thread where some1 was ripped on for wanting a roof vent ( which if im not mistaken is used to cool the interior cabin of the car)
Anyway I was wondering since it takes in the air thats coming at it from the front, instead of directing that air inside the cabin, would there be a way to have it stretch through to the back of the roof, and take the air thats coming in to push it out the rear? I was just thinking that the extra pressure would give the car an extra push thus making it faster? |
You're retarded.
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lol
your telling me theres no way to take the air pressure and transfer it out the rear so that you get a lil more push for the car? |
Anybody got a wind tunnel? Seems like what you would be doing is turning your roof into a spoiler or diffusor. You'd either have to make the roof higher or lower to achieve this to create enough dead space to accomplish this. Before I go on a rant about what you would possible need to figure out to make this happen I will say this...
Doing this you will probably upset the flow of air too much to the effect of not causing enough air to flow down the rear of the car, thus causing the opposite of your intention. This is probably why it hasn't been done before and why on some cars you have fins at the top and rear of the roof, to help direct the flow of air. |
hmm interesting, this is an answer I was looking for thankz.
So your saying not to upset the flow of air it would have to be higher or lower. So what if somewhere along the bottom side edge of the car you had vents that streched all the way through to the rear, would that work? |
Originally Posted by SSJ 909
lol
your telling me theres no way to take the air pressure and transfer it out the rear so that you get a lil more push for the car? |
Originally Posted by moRotorMotor
I'd take it you haven't studied physics/chemistry a whole lot? You wouldn't get any extra "push" by the extraction of air from inside the cabin because you can't get something from nothing. There is no such thing as getting energy for 'free'. While you can create a low pressure from a reversed hood scoop at the back of the roof and draw air out of the cabin, you will not be getting any 'push' from that. There is only so much air you draw out before the cabin would find a way to replenish the lack of air inside. I'm sure someone like BlueEyes can chime in and give you a better explanation than I can since this is right up his alley.
I said rather than have the scoop direct the air inside it would push it out of the back of the roof instead So basically it would collect the air from the front and through a lil tunnel and such push it out of the back. Its not something from nothing when you are going 60 mpg there is lots of air pressure so my thinking is why cant you take some of the energy thats present/being wasted and use it to your advantage? The previous dude said it would disrupt the balance unless it was igher or lower, so my other question was why not create this same lil tunnel system somewhere in the lower part of the body to try and channel the air out that way? |
The roof thing seems like a good idea on paper, but would probably cause too much chaos and wind up having your roof blown off. You ever hear horror stories about how people forget to latch down their hood all the way? Once they pick up speed....PHOOOOOMMM!!! Winshield and Hood destroyed!! With typical hoods being over 100lbs and going as slow as 65 mph can cause you to have a very bad day. Most likely the top of your roof would cave in and just be totally ineffective creating a pancaked dorky roof that looked like someone sat on it.
Side vents are already implemented in some high-end cars, like Ferrari and Porshe, which is why you see so many cars with psuedo-side vents. |
So the side vents on the high end cars, they collect the air being thrown from the front of the car and push it out the rear? Nice...
Do you have a link as to what kind of advantage it has in terms of hp, mpg savings or anything like that? |
Nahh, I'm only remembering about things I've read. You should be able to find some stuff if you look in the right places, where those places would be? I have no idea. This is where the firefox add-on stubmle-upon might come in handy
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I agree with Ike, "You're retarded".
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So let me get this straight. You're hoping that a tube on your roof would function like a jet engine and rocket you along?
....why don't you try running a sprint with a paper towel tube taped to your head, and let me know if you break any records. Yeah, you're retarded. And no, that is NOT how side vents work. The functional side vents on Ferraris are because Ferraris are mid-engine cars, and the side scoops channel air past radiators and coolers, the way a hood scoop or grill would if the engine was actually under the hood. |
all that does is make your car slower, making it less areo dynamic by adding air resistenace and drag.
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Originally Posted by SSJ 909
So the side vents on the high end cars, they collect the air being thrown from the front of the car and push it out the rear? Nice...
Do you have a link as to what kind of advantage it has in terms of hp, mpg savings or anything like that? |
One more vote for retarded. The "idea" makes absolutely no sense.
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You would need the air to be pushed OUT at a much higher rate than it was coming in. See playdoh's post above about resistance and drag.
yep, short bus it is :D: |
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^^ which, as you can see, is not:
http://www.munciedragway.com/images/cool-bus.jpg |
Damn you all should relax, im not an engineer I had an idea and im asking about it.
No one said a jet engine. Right now there is air pressure when you drive faster. All I was aksing was since it is already there, would there be a way to harness some of it to your advantage ie: a tube constructed in a way to collect and circulate the air and push it out to give you a lil extra bump. If not fine, thats why I was ASKING. holy shit some of you need to cut back on the coffee. |
dude, you should know better than to ask "or am I just retarded"
Get a sense of humor ... it will make life a lot easier :D: |
sorry just joking around man.
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Maybe it's an attempt to reduce lift but like someone said earlier the roog will get blown off due to the lift.
A pics quote from: http://www.up22.com/Aerodynamics.htm |
Originally Posted by RedSheDevil
yep, short bus it is :D:
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Sounds vaguely like Homer Simpson's "speed holes". I like it. Just make sure you've got several.
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LMAO... this reminds me of when some kid tried telling me that to get better rear traction in his civic he was just going to attach the motor mounts to an I-beam which then connected to rear of the car.... I hope you all understand how that is funny on SEVERAL different levels.
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Originally Posted by Xantium
What I don't think you understand is that the front of the hoodscoop (the part sucking air in) Will cause drag... slow you down whatever... the air coming out the back of your tube ...won't really be doing anything. Imagine glueing pvc pipe to the top of your car... thats the same thing you're suggesting.
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take out your windsheild and back window.. lots less drag...
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he's from Riverside.
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Here is the simple reason it will not work.
Conservation of Energy! The air velocity and pressure you are wishing to harness is generated by your forward motion. Let's say this air has an energy of X. Then you pass it through a tube that changes the velocity or pressure. Now what is the energy of the air coming out of the tube? Well it happens to be equal the amount put in so it would be X. Since this tube adds no energy you will receive no thrust from it. Now if you put a turbine in the tube driven by fuel or electricity then you could get some thrust since you are adding energy to the system but then you would just have a jet engine. NOTE: The case above is the ideal case i.e. no friction etc. |
BTW - Your are retarded.
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If you reversed your idea, and put a hurricane behind you blowing the direction you are driving...it just might work.
Or you could just be retarded :) |
Originally Posted by Rx-A-Ho
BTW - Your are retarded.
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Thanks, I try. :rofl:
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While you're at it, might as well replace the renesis with one of those new fangled perpetual motion engines. I hear they run forever without requiring any fuel!
If I ever met you in person, this might happen: :balls: |
^^^^^ i think the personal threat took it one step to far
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Sorry, that was meant to be sarcastic.
plus i thought that smilie animation was hillarious and really wanted to use it ;) |
Still retarded
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Originally Posted by Rootski
So let me get this straight. You're hoping that a tube on your roof would function like a jet engine and rocket you along?
....why don't you try running a sprint with a paper towel tube taped to your head, and let me know if you break any records. Yeah, you're retarded. As for the idea, I think he was just suggesting a way to improve the aero dynamics. Except his solution for it was poorly put... :-P |
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