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Where can I find actual facts/figures that the R's rear wing performs a useful function "downforce?"

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Old Aug 12, 2001 | 12:51 PM
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From: kuidaore
Default Where can I find actual facts/figures that the R's rear wing performs a useful function "downforce?"

I've seen posts in the past attesting to this fact. I don't remember who posted it and don't care.
I'm just interested in seeing the specs in print. I know that the front lip combined with the lower suspension height and a few other things actually "do" contribute to the lower Drag coefficient. I've seen these things posted before "from acura, I believe or a reputable magazine."

I've seen that it's possible that the rear wing might produce 200 to 250 lbs. of downforce at a certain speed and want to know just where I can find the wind tunnel testing or a column about it.

Thanks,

A.
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Old Aug 12, 2001 | 01:27 PM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

The only references to aerodynamic improvements that I have seen in print are the following in the March 1997 issue of Motor Trend:

Body refinements reduce aerodynamic drag slightly, cut lift by
30 percent, and for steering precision, put 60 percent of the
downforce on the front end, and 40 percent on the rear. The GS-R has
just the opposite aero balance; in that model, stability rules.

And at http://www.roadtestonline.com/review...-integra.shtml

Outstanding cornering response and enhanced braking performance also
are a hallmark of this limited edition vehicle. This is made possible
by features such as: an overall vehicle weight reduction by 93 pounds
(compared to the current Integra GS-R); lower overall vehicle height
(by 15 mm compared to the GS-R) and aerodynamic refinements -- such as
a chin spoiler, wing-type rear spoiler and body-colored side sills --
that result in 30 percent less lift and 1 percent less drag
;
lightweight aluminum alloy wheels in Championship White; larger disk
brakes with performance-oriented calipers; refined Anti-Lock Braking
System.


[Modified by norice, 3:55 PM 8/12/2001]
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Old Aug 12, 2001 | 05:09 PM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

IMO I think you really need to be driving in excess of 100 mph to really get any benefit from the ITR aero package, I doubt anything that can be felt would happen at any lower speed than that. That is just my opinion, no real data to base that on .

J.
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Old Aug 12, 2001 | 05:28 PM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

The Type R comes w/ a wing?
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Old Aug 12, 2001 | 05:30 PM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

The Type R comes w/ a wing?
I was waiting for that....
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Old Aug 12, 2001 | 06:33 PM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

The only real way is to take the spoilers off and test.


I had my front ITR lip off and I felt a difference on HWY 100KM/Hr ++ speeds.
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Old Aug 12, 2001 | 07:42 PM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

goto http://www.howstuffworks.com and do a search on aerodynamics/automotive. If i remember correctly, they talk about a hatchback and the drag that happens as air goes off of the hatch.
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Old Aug 12, 2001 | 08:02 PM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

wing doesnt do jask shiztor
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Old Aug 12, 2001 | 08:38 PM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

wing doesnt do jask shiztor
It Seems to work for me, Helps keep the back end from over swinging and keeps its planted more traveling highway speeds doing fast manuvers.
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Old Aug 12, 2001 | 10:07 PM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

The best reason to believe that the wing and front lip are functional are the words of Shigeru Uehara, chief engineer of the ITR. In Best Motoring's interview with him, he said the wing and lip are indeed functional and mentioned that they made the car stick quite well on high speed turns such as the 130R of Suzuka.
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Old Aug 12, 2001 | 10:39 PM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

The only real way is to take the spoilers off and test.


I had my front ITR lip off and I felt a difference on HWY 100KM/Hr ++ speeds.
was that a positive difference or negative difference with the lip off?
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Old Aug 12, 2001 | 10:52 PM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

The wing is only useful for hanging your laundry!!!

Seriously. That thing doesn't do anything. Formula 1 cars do need it...not ITRs
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Old Aug 12, 2001 | 10:55 PM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

most likely negative, i remember someone here, i forget who, put some sorta lip on his old car (not a ITR), and it made it more stable on the highway. Keeps the front end planted more by providing more negative lift on the front.
100km/h isnt that fast too....
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Old Aug 13, 2001 | 01:54 AM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

The wing is only useful for hanging your laundry!!!

Seriously. That thing doesn't do anything. Formula 1 cars do need it...not ITRs
yeah and I suppose RX-7s and other lesser cars don't require wings too?? Have you ever driven your car on the track without the wing? I certainly haven't....and I wouldn't dare.... I had a thieving bastard rip my wing off and I will admit...I was ripping it through a very familiar stretch of road and noticed immediately the difference in stability..... high speed sweepers...beware...

Put a Mugen wing on a week later.... marked difference.... but ofcourse ...nobody likes Mugen here...because it's nothing more than a FANCY, Expensive shopping cart handle, clothes hanger, wannbe triple deck wing....rice item.....that they happened to design in a wind tunnel....

Sorry if I'm seemingly flying off the hook here...but it is one of my pet peeves to hear about this one......

Besides.....borrowing from what somebody said before..... "A Type-R without its wing is like Superman without his cape....!"


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Old Aug 13, 2001 | 03:21 AM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

I kinda knew you would answer this one,

Ok Ok Ok I'm convinced, The wing is coming off temporarily. I've always been intrigued with this idea and have seen a couple of examples. I do like the black or white R's without the feathers but the PY in my books just doesn't look right. Now a wingless PY with a CF hood is another story.

So if anyone with a FBP or NBP like mine wants to post some PICS I'd appreciate it alot! I think combining the wingless thing with my other ideas and my R being black will have a nice clean look/effect...

Thanks guys,

A.
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Old Aug 13, 2001 | 03:41 AM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

i keep getting my rather large alien head stuck between the wing and the rear deck...talk about downforce
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Old Aug 13, 2001 | 03:42 AM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

i keep getting my rather large alien head stuck between the wing and the rear deck...talk about downforce
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Old Aug 13, 2001 | 06:56 AM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

To those that think the wing is not functional; You`re wrong! If I would`ve taken note of the site that specifically talks about the wing/front airdam combo on the ITR I could prove this.......but I *^%$# can`t. The wing and the front lip work together to provide a SMALL overall downforce.
Most (99%) of wings don`t do **** on a car especially a FWD one, but it is functional on the ITR.
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Old Aug 13, 2001 | 08:21 AM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

And thats why I'm looking for the information in print on a site or some books or something...
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Old Aug 13, 2001 | 08:35 AM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

Until you put your R on track and see the eddy currents of air on a cool humid morning on the straights or inspect the brake dust patterns on the wing itself after a long weekend on track, don't tell me the wing "does nothing". 1,000lbs of down force?? NO. but does it do something?? YES.
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Old Aug 13, 2001 | 08:40 AM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

Anton,
Check out a recent issue of Sport Compact Car Mag. I think they did a aero test and had an RSX figure as an example.
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Old Aug 13, 2001 | 08:45 AM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

what do the "PY" and the "NBP" stand for?
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Old Aug 13, 2001 | 08:48 AM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

I think the distinction between lift and downforce needs to be made here.

Any car, due to its shape (complex wedge basically) will have lift on the rear end, as air will be passing over the top of the car faster than it is travelling underneath (unless you have a diffuser under your car). This lifting tendency tends to take weight off the rear tires - which is a concern on a car with a 65/35 weight balance-especially at speed and especially when road conditions affect the road surface grip.

Now ANY wing that disturbs the airflow over the rear of the car will, if designed properly, channel some of this air such that it creates a "down" force equal and opposite to the drag that this wing creates. The stock wing (being non-adjustable) will have a certain coefficient of drag that will create "down" force that increases with vehicle speed.

Now if one creates "down" force that exceeds all lifting forces in the rear - then you are truly creating a force which will load the rear tires, but you need a HUGE wing to do this (e.g. see dirt circle track racers) I don't think that any of the wing designs that you can mount to the rear of the Integra will do anything but reduce lift.


[Modified by Big Phat R, 9:49 AM 8/13/2001]
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Old Aug 13, 2001 | 08:56 AM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

what do the "PY" and the "NBP" stand for?
PY - Phoenix Yellow
NBP - Nighthawk Black Pearl
CW Championship White
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Old Aug 13, 2001 | 08:56 AM
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Default Re: Where can I find actual facts/figures that the R's rear wing performs a useful function "downfor

Besides.....borrowing from what somebody said before..... "A Type-R without its wing is like Superman without his cape....!"
I couldn't have said it better myself.


[Modified by 98R, 10:59 AM 8/13/2001]
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