How much downforce do yall think this will make? Is it too ricey?

[Cesar]

99% of production cars produce lift

 

[Flash]

99% of production cars produce lift

[Insert Citation]

 

[BoostedinSoFla]

Chicken Fried RICE!

 

[VTRICCO]

pork fried with extra bean sprouts

 

[king_of_HTX]

Lol...

 

[Scrymerr]

[Insert Citation]

I haven't found any table listing lift coefficients for every car ever made, but search around and you will find many examples. Only very high-end cars like Ferrari have negative lift coefficients.

 

[kronus]

A lot of the things said in this thread seem to be somewhat questionable and general statements based on speculation. You however just said a bunch of things that are just wrong.

First of all: aerodynamic aids can definately be incorporated on the bumper, and on the hatch as well. If you actually attach your bumper correctly (instead of using zip-ties) you will be able to apply a lot of force with minimal or no deflection. And do you think applying downward force on the decklid will do nothing? Try going to your car and pushing down on the hatch and watch your car squat. The hatch is supported by 'stoppers' and you will be able to apply a lot of force down on the decklid as well.

Secondly, do not study aerodynamics from autocross, this is not the area of racing that is most dependent on aerodynamics for success as they stay at relatively low speeds. So, again, bad advice.

Lastly, many people build their cars for different reasons, and if someone wants to put a different bumper on the car with aerodynamics in mind, they are already thinking in the right direction. Having 'no taste' is not something you can ever argue against; one person's opinion is just as valid as the next.

In my opinion, it is good that the OP has some awareness of aero, but looking at the bumper I do not see things being affected very drastically. In regards to the cracked rotor issue: I do not imagine you are cracking them due to extreme stress on a factory or upgraded rotor, but rather normal stress on a poor quality aftermarket rotor. After the brake rotor problem is corrected, it can't hurt to look into brake ducts. Although it will likely be totally unnecessary, it is a potentially beneficial idea.

Touche' however, my point is that the OP, while he may someday benefit from that bumper, will most likely not be benefiting from the bumper or the spoiler at this point and time. And mind you I did say that some of the downforce would be negated from the rubber weather strip, not completely neutralized. And I honestly doubt that bumper alone would create that much more downforce in the front of the car than the stock 2gb bumper. Look at Greg Collier. He had a 'big mouth' bumper and still used a front splitter. And my referencing auto-x was merely a mix up for road racing. And I mention that because that's about as far as a dsm will be taken on a non drag basis. Yes, I generalized, but the OP asked if this was ricey and would help his brakes. Obviously a generalized question will receive a generalized answer.

 

[sd_ff22]

2001 called...
They want their "fast and furious" back.

 

[Hideki]

2001 called...
They want their "fast and furious" back.

 

[Scrymerr]

Touche' however, my point is that the OP, while he may someday benefit from that bumper, will most likely not be benefiting from the bumper or the spoiler at this point and time. And mind you I did say that some of the downforce would be negated from the rubber weather strip, not completely neutralized. And I honestly doubt that bumper alone would create that much more downforce in the front of the car than the stock 2gb bumper. Look at Greg Collier. He had a 'big mouth' bumper and still used a front splitter. And my referencing auto-x was merely a mix up for road racing. And I mention that because that's about as far as a dsm will be taken on a non drag basis. Yes, I generalized, but the OP asked if this was ricey and would help his brakes. Obviously a generalized question will receive a generalized answer.

Well, for the record, the rubber weatherstripping on a hatch will not negate or 'neutralize' any downforce. Think about it this way: if you apply 100lbs of downforce in the form of a weight placed on hatch while the car sits, how much net downforce will be applied to the vehicle? (and for this we need to think net force distributed over all four wheels because force applied to the hatch will actually change the distribution of force between the front and rear wheels, but anyway...) The answer is that the car will have 100lbs more force keeping it on the ground. The only thing you will see from attaching a wing to the hatch of a car is whatever minimal 'slop' the hatch has. And if you go push down on your hatch with your body weight, you should see the hatch move down very little.

Dan

 

[VTRICCO]

that bumper is just too fast and too furious for its own good. totally get it so you can blend in with the civics

 

[RedTurboEclipse]

Rice. Even more since you have a GST. Don't ruin it.

 

[kronus]

Well, for the record, the rubber weatherstripping on a hatch will not negate or 'neutralize' any downforce. Think about it this way: if you apply 100lbs of downforce in the form of a weight placed on hatch while the car sits, how much net downforce will be applied to the vehicle? (and for this we need to think net force distributed over all four wheels because force applied to the hatch will actually change the distribution of force between the front and rear wheels, but anyway...) The answer is that the car will have 100lbs more force keeping it on the ground. The only thing you will see from attaching a wing to the hatch of a car is whatever minimal 'slop' the hatch has. And if you go push down on your hatch with your body weight, you should see the hatch move down very little.

Dan

Fair enough, but I have a question: Why do high end road race and time across cars such as the AMS Evo attach their wing to the frame, rather than just replacing the existing spoiler on the trunk?

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[Scrymerr]

Fair enough, but I have a question: Why do high end road race and time across cars such as the AMS Evo attach their wing to the frame, rather than just replacing the existing spoiler on the trunk?

QUOTE]

The frame is a more rigid and secure attachment point for a spoiler. I also think it makes mounting the wing where they have it (behind the car) easier. I did not mean to imply that attaching a wing to the spoiler is the best place, as it is a movable panel and not rigid, but I did want to point out that you will still get all the downforce. I hope that makes sense.

 

[kronus]

Gotcha. I still don't think the OP needs either of those aero upgrades.

 

[RUBBERBURNER]

ImageShack - Hosting :: sgmeet129borderpu4.jpg


Looks good on this car ....

 

[fwdmaster]

RICER

 

[kwheeler]

One thing to keep in mind about producing down force on the front of the car is you have to control where the air flows. You need to either direct it around the front or force it up over the hood. Not doing this allows the air to enter the engine bay and produce a high pressure zone. This produces a net lift on the front of the car. This is the cause of "most" production cars experiencing front lift at high speeds. That bumper will most likely end up producing as much if not more lift than the stock one. Adding a splitter would help but only to a certain point.

Another thing to keep in mind is that aero effects for most street cars don't come into play until you're up around 100mph. Until that speed is reached there simply isn't enough air flow to produce a usable amount of force.

As for how it looks, it's a bit ricey (has that boy racer look) but if you like it, it's your car.

kwheeler

 

[steves97gst]

i dont think its that bad but if u like it do it iits your car personally im not even goin to change my bodykit the stock is fine with me its jus extra money your spendin that u could put in your engine or else where

 

[kronus]

ImageShack - Hosting :: sgmeet129borderpu4.jpg


Looks good on this car ....

Lol, I love how you feel like it looks good. Ironically, you have a s/n like RUBBERBURNER, and you have an n/t 2g.

 

[92nolatist]

There are no words for the wing you have chosen to put on your car, but if that's the way you want it to look, then go for it. There is nothing wrong with the gst wing; it looks just fine. Im sorry if i put you down at all but mitsubishis werent made for rice, those are hondas

 

[knochgoon24]

I know the stock rear wing on my 97 has some aerodynamic properties. I hit 100mph when there was some ice build up on it. It shook the car really bad.

Judging by the shape, it must put some down force on it. Watch the flow of snow as it blows off your car. It might not be much, but it is something.

As for the bumper, I personally think it is rice. Go for the brake upgrade instead.

 

[gsxeclipse97]

be careful you may catch alot of heat for saying tha the 2g spoiler does something.

as for high pressure zone you could always get a vent that would relive some of the pressure since it sucks air out of the from under the hood.

still haven't gotten the truft test done cause valve cover leaks oil still looking for one to fix the problem (defiant)