I'm prepared to listen to anyone's educated info on this topic, my figure is
a total guess, based only on my memory of CD's for various cars. Keep
improving on the info and we may get the real CD figure.
Incidentally, whats the CD of a 1600?
----- Original Message -----
From: "Derek Franklin" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, 20 June 2000 11:23 AM
Subject: Re: confused once again
> Respectfully, I reckon 0.32 Cd for a 120Y is very optimistic. I'd expect
late
> model hatchbacks to be about this or probably worse, and that's with
modern
> curved panel construction and hundreds of wind tunnel hours at the
prototype
> stage.
> Even slick new cars are lucky to beat 0.30, so I'd be thinking 0.4x for
our
> '70s sedans, maybe high 0.3x for a 120y coupe.
>
> Just my opinion of course, but I have seen a bit of wind and water tunnel
work
> in my time here at Uni of Ad, and it's the little turbulences and boundary
layers
> that build up on flat panels and in recesses that bump the drag right up,
and
> old Dattos have heaps of both.
>
> DF
>
> PS - don't you just love seeing someone who paid $30k+ for a new car with
a
> 0.29 Cd, and then added 0.02 right off the bat by chucking on a spoiler
for
> the sake of 200 grams of downforce ?
>
> >Its the atmospheric drag generated by your car's body shape.
> >An streamlined car body with a low CD would measure in the high 2's. A =
> >120Y coupe would be around 3.2 at a guess, a sedan may be .2 higher =
> >again.=20
>
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