After reading a few times that the vRS, and the Fabia in general is about as aerodynamic as a brick, does anyone know the official drag coefficient for the car?

I remember reading that the Citroen AX had a very low level of drag in it's day despite being shaped like a breeze block and wondered if peoples opinions of the Fabia were unfounded?

I know at higher speeds the diesel engine runs out of puff (if not remapped that is) but how much does the Fabia's shape play a role in this?

Just a thought....

Chris.

A quick google brings up Fabia's drag coefficient as 0.33... what ever that means... :confused:

0.33, apparently.

Same as the AX GTi, allegedly!

Not sure how accurate the data is, though: the old XJ220 supposedly had a worse Cd (0.36)

There's a load more on Wikipedia, if you've got nothing better to do - if 0.33 is correct for the Furby, it's middling drag-wise!

Hmmm......so it's not THAT bad really......

So it's just down to the standard map and typical diesel characteristics that limit it's high speed performance?

Get it mapped then it wont be slow top end

Also a brick has the a drag coefficient of 2.1

So that settles it then, the Fabia is more aero dynamic than a brick :P

Also a brick has the a drag coefficient of 2.1

Geek :P

Drag coefficient on its own doesn't tell you a lot - multiply it by the frontal surface area and you'll have a useful figure.

A brick is considerably smaller than a Fabia and hence more aerodynamic overall.

Hmmm......so it's not THAT bad really......

So it's just down to the standard map and typical diesel characteristics that limit it's high speed performance?

Not true...

Compare figures for the octy and its other VAG group stablemates ie the golf and leon.. youll find for the same engine config, the octy would have a higher top-end and marginally better fuel economy

this was especially the case a while back with the original leon cupra and the mk1 vrs.... over 100mph the octy would start to pull away because of the aerodynamics.

Also a brick has the a drag coefficient of 2.1

So that settles it then, the Fabia is more aero dynamic than a brick :P

"more aerodynamic than a brick"

they shoulda used that in the advertising

0.33 is better than the Porsche 928 was!

Howstuffworks "1985 Porsche 928S and 1987 Porsche 928S 4"

Didn't the Audi 100 avant have a Cd of 0.30

and the mark I sierra 0.34

Showing me age now

"more aerodynamic than a brick"

they shoulda used that in the advertising

Yup.. a missed opportunity

I wonder how much difference the little vrs boot spoiler makes?

Just as another comparison, a Ford Transit has a DC of .37.

So not much better then.

Just as another comparison, a Ford Transit has a DC of .37.

So not much better then.

Apparently small CD ratio changes reflect a large difference, so a 0.01 difference is quite large.

Anyone ever thrown a brick? Those things move pretty darn fast! Perhaps the Fab vRS is a fast brick???

Apparently small CD ratio changes reflect a large difference, so a 0.01 difference is quite large.

Anyone ever thrown a brick? Those things move pretty darn fast! Perhaps the Fab vRS is a fast brick???

Ah but, if you put a PD130 into a brick wouldn't the brick be faster.

Ah but, if you put a PD130 into a brick wouldn't the brick be faster.

Suppose it depends on the power to weight ratio of the OEM brick.....

Ah but, if you put a PD130 into a brick wouldn't the brick be faster.

Ah but what happens if you fit the Fabia spoiler to the brick ? :confused:

i read that the mk1 octy had a very good drag factor

Apparently small CD ratio changes reflect a large difference, so a 0.01 difference is quite large.

Also, though no-one paid much attention last time I posted it, the drag coefficient in itself doesn't convey much information. It's relative to the frontal area, so even if the Fabia and Transit had the same drag coefficient the Fabia would still be more aerodynamic and have less drag at any given speed.

Is it down to the fact the Octy has a more sticky out boot which makes it drag less than say the stumpy arsed Fabia?

no, as the estate has a lower drag coefficient than the hatch

no, as the estate has a lower drag coefficient than the hatch

Kamm effect - I presume Doctor Watson ? :confused:

If I remember rightly from the literature

Estate - 0.30Cd

Hatch - 0.32Cd

Sedan - 0.34Cd

About the same as most current cars.

I remember that the old Vauxhall Calibra used to have a Cd of 0.28 (with skinny tyres) and had the best Cd on the market at the time, circe 1987.

I also remember that Citroen made a prototype car which had a 0.20Cd (which gave it an extra 10mph top speed for the same engine power) but we are talking Teardrop shape - which I still don't think we are ready for!