Z aerodynamics

[26th-Z]

Spook

[26th-Z]

Here is a link to MSA front air dams as well as spooks. Take a look at the BRE spook they sell.

http://www.zcarparts.com/store/merchant.mvc?Screen=CTGY&Category_Code=7AD1

[TomoHawk]

From all this information, I gather that the 'chin' spoiler and 'air dam' are of the same design, although they might vary in the height. The 'spook' style has little to moderate height and the 'scoop' has moderate to great height, depending on it's use; i.e., one used to scoop air into the radiator would be taller than one ment for simple downforce/air displacement.

Overall, the definition seems to be based on what the advertisement Exec wants to sell it as., or to whom he wants to sell the stuff.

[Bambikiller240]

Originally posted by TomoHawk

Overall, the definition seems to be based on what the advertisement Exec wants to sell it as., or to whom he wants to sell the stuff.

Sounds about normal for everything sold in the world .

Marketing before substance. :stupid:

[RB30-ZED]

Have you guy's read this article.

http://zccw.org/Tech/Body/09-97EarlyZAerodynamics.html

It is very interesting, especially the first part on air flow around the radiator area.

And one more worth a look.http://autozine.kyul.net/technical_school/aero/tech_aero.htm#Drag%20and%20Lift

Steven

[TomoHawk]

Has anybody seen these " turbulator strips in the roof near the forward edge of the hatch"? I'd like to try it and see if there's a difference. Probably not much if you drive below 80 mph. Maybe it will help a little any way.

thx.

[RB30-ZED]

No, I haven't seen them, but they sound easy to make.

Im now considering refitting my old rear window louver to break up the air flow over the rear of the hatch to stop the air flow attaching and coursing lift.

Any one noticed a difference with a rear window louver on or off?

Steven

[D-Webster]

I had a 71 without the louver and it was more stable than my current 73 with the louver. My current 83 doesn't have a louver either but the last 83 I had did but I doubt I've ever had either car where I would notice anyway.

[TomoHawk]

What do you think those turbulator strips look like? You could easily rivet or screw on a shallow rectangular or wedge-shaped strip on. Maybe even double-sided tape.

Something ELSE ricers don't have!

Yay!

Here's one on the keelfin of an r/c sailboat:

http://www.onemetre.net/Technicl/TripTurb/Turb2.jpg

[TomoHawk]

I was just watching "Victory By Design" On Speed Channel, and they had Porches . There was a comment about how why they put on the ducktail spoilers because it was "unstable at 150 MPH".

So there is your answer about what speed you need to get instability.

[260DET]

Originally posted by RB30-ZED

No, I haven't seen them, but they sound easy to make.

Im now considering refitting my old rear window louver to break up the air flow over the rear of the hatch to stop the air flow attaching and coursing lift.

Any one noticed a difference with a rear window louver on or off?

Steven

I'ts going to likely mess up your airflow around the rear something awful though. Lots of drag and any spoiler probably won't work well. Much better to leave it clean and use a spoiler IMHO.

[SteveK]

Sorry to go off topic for a moment but what on earth are "ricers"

I have seen the term used several times and cannot for the life of me think what it refers too.