Fords new Anti-Ecomodding Car

[Peter7307]

Originally Posted by MorphDaCivic

Amazing that the carmakers race for speed has finally made 200 MPH accessible for the common man.

That truly is a frightening thought...given the way most muppets drive at freeway speeds now!

Peter.

[Debonair]

Originally Posted by Old Tele man

...as I vaguely recall, most Corvettes are not hit with the Gas-Guzzler Tax, while the Shelby Mustangs are...

I believe because they are not in the same class. The Mustang would be comparable to a Camaro because they are sport coupes. 2+2 seating. The Corvette is a sports car and would be comparable to the Ford GT (my guess)

[redyaris]

...if you need 650 hp to go 200 mph it is not high performance...! If you could do that with less than 200 hp that would be High perfomance!

[Debonair]

I'm sure the horsepower numbers are overrated. They're not even confident in it being the "ZL-1 killer"

[gone-ot]

...uh, *if* those HP numbers are SAE-certified (Corvettes are), then they're "...for real..."

[Hubert Farnsworth]

Originally Posted by redyaris

...if you need 650 hp to go 200 mph it is not high performance...! If you could do that with less than 200 hp that would be High perfomance!

I'm not sure you have a firm grasp of aerodynamics or the mechanisms that allow a car to travel at high speed. Using an available online calculator to calculate the power required to over come the aerodynamic drag which depends upon the frontal area, the coefficient of drag and the cube of the speed that the vehicle is going, therefore assuming a cd of 0.38, a frontal area of 28.2770 sq. ft, excluding the width of the mirrors, and over estimating the frontal area by 20% as the number I was always taught to use in the powertrain courses was 80% of the actuall height and width of the car, the aerodynamic power consumption alone is 590.4 horsepower at the top speed of 202 miles per hour, the rest of the power would be utilized in over coming road load forces as well as any drive line losses. Mind you its awfully hard to find better drag coefficient data so the 0.38 is based on the old GT500 and not the newer model and the dimensional analysis was also done on a 2012 gt500

[rmay635703]

Originally Posted by Hubert Farnsworth

I'm not sure you have a firm grasp of aerodynamics

But do you? This forum is about aero.

Originally Posted by Hubert Farnsworth

Therefore assuming a cd of 0.38, a frontal area of 28.2770 sq. ft, excluding the width of the mirrors, and over estimating the frontal area by 20% as the number. The aerodynamic power consumption alone is 590.4 horsepower at the top speed of 202 miles per hour.

Thats why assuming a CD of 0.14 and a frontal area of 16sqft results in a much better result that all here would appreciate far more than a CD of .38!

200hp for 200mph, Now that would be an achievement I could take to the bank!

[SoobieOut]

I think the formula is that required Horsepower increases to the cube of speed change.

This means if it requires 100 HP to go 100 MPH, then it will take 800 HP to go 200 MPH.

Double the speed = 8 times the horsepower!

[Debonair]

wouldn't an engine with 100 HP work harder going 100 MPH opposed to one with 300 HP traveling at 100 MPH? and if thats the case wouldn't that create more wear and tear on the less powerful car?

[redyaris]

Hubert Farnsworth
My point is that with enough money and power you can make almost any vehical go 200mph... even a grayhound bus...!
Vehicle Performance is more than just speed and power... My standard for a high performance vehicle woud be the Opel Eco-speedster which is capable of 155mph top speed and can get 94mpg at around 60mph with only 114 bhp.
The absolut peak of high performance for me is the basjoos honda civic because of the small amount of money used to get the results!