2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

Rear Diffusers...

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Old Sep 25, 2006 | 03:10 AM
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Talking Rear Diffusers...

Does anyone know who makes rear diffusers for the cobalt ss/sc?
I am setting mine up for high speed adventures and would like the increase in downforce and decrease in drag.
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Old Sep 25, 2006 | 06:23 AM
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you might have to go custom on that man, the spoiler should be enough downforce for you though. or get the euro look and get canards?
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Old Sep 25, 2006 | 03:49 PM
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Talking Damn...

Damn! That sucks, I know they make them for the EVO, and STI, but I was hoping that there would be a small chance that they would make them for my car!


I will keep looking and post what I can find...

If anyone else finds something, please post it up!
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Old Sep 25, 2006 | 05:21 PM
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Originally Posted by sheek360
you might have to go custom on that man, the spoiler should be enough downforce for you though. or get the euro look and get canards?

are you being serious? the wing isn't functional...
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Old Sep 25, 2006 | 05:59 PM
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Originally Posted by 8cd03gro
are you being serious? the wing isn't functional...

uhh yes it is
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Old Sep 25, 2006 | 06:53 PM
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Originally Posted by selfinfliction
uhh yes it is
The slit on the bottom screws any "function" it might have had. Its simple physics.
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Old Sep 25, 2006 | 06:55 PM
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it is NOT functional. there are many ways to prove it, but the most obvious is, chevy would say it everywhere if it was functional. it would be like 205 hp supercharged ecotec engine....and a FUNCTIONAL REAR SPOILER WHEEEEEEEEEEEEEWWWWWWWWWW HELL YEA!
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Old Sep 25, 2006 | 07:01 PM
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Originally Posted by 8cd03gro
are you being serious? the wing isn't functional...
According to GM the wing is functional... For gas mileage.
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Old Sep 25, 2006 | 07:17 PM
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Originally Posted by SS4ME
According to GM the wing is functional... For gas mileage.

Yeah that doesn't equate to downforce though.
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Old Sep 25, 2006 | 07:21 PM
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the wing is functional and a diffuser doesn't add downforce anyway. it helps cut the wind under the car to make it more aero dynamic but does not increase downforce.


i'm hungry.
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Old Sep 25, 2006 | 09:32 PM
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Originally Posted by uthinkimodd
the wing is functional and a diffuser doesn't add downforce anyway. it helps cut the wind under the car to make it more aero dynamic but does not increase downforce.


i'm hungry.

ok well a diffuser does increase downforce more than anything else it does. It makes smooth changes in pressure pockets under your car to create more downforce. i still don't beleive that the wing is functional and until i see it stated by either some gm source, or any other reliable source, i don't think it is a functional spoiler.
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Old Sep 25, 2006 | 10:10 PM
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Originally Posted by leviticus88
The slit on the bottom screws any "function" it might have had. Its simple physics.

simple physics you say? maybe you could let us all know what theorem this would fall under?... i'll give you a hint to start your search; it starts with a "B"

the space underneath DOES hinder downforce, but it also creates less drag and drag creates lift. less drag, less lift so the wing is much more effecient than a spoiler.


but hey, maybe i'm just a lucky guess when it comes to physics

<edit> and i can assure you this theorem is complicated enough for people to spend a lifetime perfecting, and never get it "just right"
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Old Sep 26, 2006 | 04:04 AM
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turns out GM just hired some japanese physicists to develop a wing involving the "cop magnet" theorem.

i wouldnt want to say that the wing is not functional.... but i have a hard time believing that it does much.

back on topic... no, there are no rear diffusers currently made for the cobalt. i cant honestly see the need for that anyways..... are you planning on setting some land speed records with a 2.0l cobalt?
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Old Sep 26, 2006 | 04:54 AM
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I swear, people will argue about anything on this site. If you can not prove it you should keep your mouth shut. I do not now it the rear wing is funtional or for looks, but how fast are you planing on going to get that kinda downforce? Hopefully it will be on the track if not all I got to say is you are retarded. Going fast enough on the street where you need that kinda of downforce is only done by a complete moron.
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Old Sep 26, 2006 | 08:12 AM
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wtf? the spoiler is functional? i thought it was only functional during high speed auto x? not in the 1/4, right?
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Old Sep 26, 2006 | 09:28 AM
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Functional or not, it is a HUGE cop magnet, mine is getting taken off and sold to a member.
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Old Sep 26, 2006 | 03:30 PM
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I wish I could get rid of mine but its staying. My other half ses so. =(

But I think it dose do somthing just not much.

Later
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Old Sep 26, 2006 | 04:36 PM
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the term functional means it was designed with downforce in mind. ill put 20 bucks down on your spoiler being about as functional as a peice of ply wood being stuck on at an angle. 99% of the spoilers you see on cars are NOT functional. very few actually have a functional wing and it takes a great deal of money into design and testing to actually make a functional spoiler. I think the cheapest car you can buy right now with a functional spoiler is the crossfire. some high performance cars have functional spoilers, but most companies don't even bother. Functional spoilers usually look like the rediculous fake ones you see on ricers. Big, ugly, and really wide. If your spoiler was actually functional, it would cost alot more money than it does. GM would not waste the time to make your soiler functional. keep in mind when people say "functional spoiler" it means it provides a great deal more down force at high speeds. adding it's downforce in weight does not mean it is functional!
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Old Sep 26, 2006 | 05:40 PM
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The wing sure is functional................as it flaps in the wind................
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Old Sep 26, 2006 | 06:30 PM
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Originally Posted by BooSSted
The wing sure is functional................as it flaps in the wind................

Man I was waiting for that one!
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Old Sep 26, 2006 | 06:43 PM
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lol i was gonna say something about how unstable it is, but since i don't own a cobalt everyone would just end up saying, "**** YOU MAN YOU ARE JUST TRYING TO RAG ON OUR CARS!" happens every time.
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Old Sep 26, 2006 | 07:41 PM
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Originally Posted by 8cd03gro
lol i was gonna say something about how unstable it is, but since i don't own a cobalt everyone would just end up saying, "**** YOU MAN YOU ARE JUST TRYING TO RAG ON OUR CARS!" happens every time.
most likely that would happen. btw, WHY THE HELL ARE YOU TALKING **** ABOUT MY CAR!!! stupid mustang
=P j/k

i disagree that wings on MOST sports cars are not functional, but the ss/sc wing certainly has me doubting that it has any real purpose. im really done reading this thread, i've already started repeating myself and this is going to go on and on.
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Old Sep 26, 2006 | 07:50 PM
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most of the people that are claiming it's not functional do not have any formal education in physics. the few of us who have actually taken physics courses in college, understand why it works. alot of times people that have common sense, think that physics is just that, and in part they are correct. but also, there are many aspects that are never considered because they are limiting themselves by using the "common sense approach"

and for the comment on gm not advertising it as functional if it really was, that's dumb. for example our cars also stop faster than almost every other fwd car on the market right now, and almost as fast as the z06. braking is much more important than the wing, and when is the last time you seen gm advertising that?
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Old Sep 26, 2006 | 08:08 PM
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Originally Posted by selfinfliction
most of the people that are claiming it's not functional do not have any formal education in physics. the few of us who have actually taken physics courses in college, understand why it works. alot of times people that have common sense, think that physics is just that, and in part they are correct. but also, there are many aspects that are never considered because they are limiting themselves by using the "common sense approach"

and for the comment on gm not advertising it as functional if it really was, that's dumb. for example our cars also stop faster than almost every other fwd car on the market right now, and almost as fast as the z06. braking is much more important than the wing, and when is the last time you seen gm advertising that?

i bet you'd try to tell me the srt-4 spoiler is functional too? It may increase downforce by the smallest amount, but will NOT be considered a "functional spoiler" by the automotive community. I have not taken any college physics courses seeing as i am a senior in high school, but i am in ap physics cd which is a college level course and i have taken two years of automotive engineering and design courses. I can tell you with 99% confidence that gm does not even consider that a functional rear spoiler. if you are just going off of the fact that at the spoiler's angle and direction it should cause downforce you are damn wrong. the spoiler, if it creates any significant amount of downforce, will be flexed away from the best point at which it can make downforce which is why most "functional" spoilers use aluminum or solid metal support/bracket systems so they stay in place at all times leaving little room for flexing. you can just look at the rear wing and see that it is not designed for aerodynamics and down force, it is designed to help the car appeal to it's target market. if you don't beleive how much it flexes because you don't see it when you are driving at normal speeds, close your trunk and watch it bounce around like a nice pair of ****.
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Old Sep 26, 2006 | 08:17 PM
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this is what i meant by the advertisement thing.

http://www.miltonruben.com/crossfire.htm

chrysler pushes like crazy that the crossfire srt 6 is equipped with a fully functional rear spoiler because it is a rare thing to have. notice the other crossfires do not say fully functional spoiler...it does have a spoiler, but it is there for the same reason the cobalt's is - minimal function, cosmetic flashiness.
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