hoodscoop
12-24-2003, 03:05 AM
#31
Registered User
Join Date: Mar 2003
Location: Los Angeles
Posts: 189
As others have mentioned, you can slap on the WRX scoop. If you still don't like it, then you're gonna end up spending some major $$$$ to swap and customize things.
The wing can either be replaced with something to your liking or completely removed. It's up to you, and it's your car.
I guess a majority of us are partial to the scoops and spoilers as they do serve a purpose unlike other cars that use them as part of its' styling.
SOA selected a number of lucky salesmen to actually take an STi out on the track. They had instruction and everything, so it's very possible that he was among the lucky to have the opportunity.
The wing can either be replaced with something to your liking or completely removed. It's up to you, and it's your car.
I guess a majority of us are partial to the scoops and spoilers as they do serve a purpose unlike other cars that use them as part of its' styling.
Originally posted by arctb76
the salesman (who claims to have gone to STI school and had track time in the car)...
the salesman (who claims to have gone to STI school and had track time in the car)...
12-25-2003, 11:41 PM
#32
VIP Member
iTrader: (2)
Join Date: Nov 2002
Location: Under your bed, in your closet, and in your head
Posts: 15,425
Car Info: Corvette Z51
Yup yup there was an article in Subaru's "Drive" magazine detailing the dealer training. 
Y'know, I think he finally gave up on the scoop
Y'know, I think he finally gave up on the scoop
06-07-2006, 05:59 AM
#33
Registered User
Join Date: Mar 2006
Location: HOUSTON, TX
Posts: 19
Car Info: 2002 WRX
Originally Posted by Silver arrow
The car will start to produce downforce at 75 mph. Below that no wings or spoilers really do much. Above 75 mph in creates more DF than lift.
it will produce downforce at MUCH lower speeds than that. maybe you meant to say "significant" downforce. the equation for downforce on the wing (normal to the surface) would be:
F=1/2*rho*A*v^2*cos(theta)
F=total force exerted onto wing (Newtons)
rho=density of air specific to altitude (~1.3 kg/m^3)
A=surface area of wing wind is acting upon (m^2)
V=velocity of wind flowing over car (for FBD analysis,assume car is standing still) (m/s)
theta=angle between wind vector and line normal to surface of wing (deg)
The change in force is proportional to the square of the velocity. I would say that the downforce induced has no effect until ~100mph. This is just a simple analysis and doesn't account for lift on the underside, pressure drag, etc. However, it's good enough for the girls i date.
Last edited by kwright69_02; 06-07-2006 at 06:01 AM.
06-07-2006, 06:46 AM
#34
Originally Posted by kwright69_02
umm....no
it will produce downforce at MUCH lower speeds than that. maybe you meant to say "significant" downforce. the equation for downforce on the wing (normal to the surface) would be:
F=1/2*rho*A*v^2*cos(theta)
F=total force exerted onto wing (Newtons)
rho=density of air specific to altitude (~1.3 kg/m^3)
A=surface area of wing wind is acting upon (m^2)
V=velocity of wind flowing over car (for FBD analysis,assume car is standing still) (m/s)
theta=angle between wind vector and line normal to surface of wing (deg)
The change in force is proportional to the square of the velocity. I would say that the downforce induced has no effect until ~100mph. This is just a simple analysis and doesn't account for lift on the underside, pressure drag, etc. However, it's good enough for the girls i date.
it will produce downforce at MUCH lower speeds than that. maybe you meant to say "significant" downforce. the equation for downforce on the wing (normal to the surface) would be:
F=1/2*rho*A*v^2*cos(theta)
F=total force exerted onto wing (Newtons)
rho=density of air specific to altitude (~1.3 kg/m^3)
A=surface area of wing wind is acting upon (m^2)
V=velocity of wind flowing over car (for FBD analysis,assume car is standing still) (m/s)
theta=angle between wind vector and line normal to surface of wing (deg)
The change in force is proportional to the square of the velocity. I would say that the downforce induced has no effect until ~100mph. This is just a simple analysis and doesn't account for lift on the underside, pressure drag, etc. However, it's good enough for the girls i date.
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