Wind Tunnel Advice

[Captthundarr]

Zach,

I live an hour from A2 Wind Tunnel,,, I just spoke with them last week and the 2011 prices have increased a bit.

$460 per hour.  I need to check a few things on my Stude and while there with all this spolier and safety discussion I was going to put my car in backwards and test to see how the rear lifts with altered style rear spoiler.  I was then going to test a hinged design and flaps in the spoiler,,

However after talking with them, the time involved to take the car out, re set it backwards and make the tests would cost another $2,000 that I don't have.




Charles, Do they have people waiting to use the wind tunnel, are they that busy? Maybe we should be in the wind tunnel business.

Rick

NASCAR??, Winston Salem is a couple of hours from Concord/ Charlotte,Hello

[Cajun Kid]

The A2 wind tunnel is not in Concord/Charlotte.... it is in Mooresville, NC.

I live south of Winston Salem and can get to A2 in an hour. (give or take 10 mins)

Charles

[racergeo]

  I am going to take a model car of a 88 Firebird or Camero, put a little weight glued in the trunk and back seat and fit it with interchangeable spoilers as seen in the rule book. I will take my Craftsman leaf blower and do a little experimenting from different distances. I think I will learn something. I can even put a hinge on the promod type spoiler and see if it keeps it from lifting. Should be fun and I'll report.

[Peter Jack]

Why not build a long box and use the intake of the blower to suck the air through? It should give more even flow.

Pete

[manifest]

Are there any tricks or anything particular you have to watch out for when building small scale?  And what exactly is on the triet&davenport liner model in the tunnel that is showing air movement?

[Rex Schimmer]

All of you guys that want to waste your time with leaf blowers and home made wind tunnels I have some advice for you.

The next time the wind is blowing really hard, go outside, face the wind and take a pi$$, you will learn more and get a good lesson on building a model wind tunnel.

Rex

[Tman]

Are there any tricks or anything particular you have to watch out for when building small scale?  And what exactly is on the triet&davenport liner model in the tunnel that is showing air movement?

Freud explained it in his build thread, kerosene and diatomatious earth slurry spread on the model.

[efenn611]

If you want to keep your full bodied car on the ground while sideways or backwards, why not just install some NASCAR spec roof flaps. Those boys have done a lot of testing, wind tunnel, and real life.

[Stan Back]

Yeah, but . . .

They all have an open window that makes the flaps work.

Stan

[Geo]

You do not need an open window to make them work 

Geo

[Dynoroom]

Yeah, but . . .

They all have an open window that makes the flaps work.

Stan

Stan, look again. They close the right side window at the super speedways. That's not what makes them work.   

[Richard 2]

All of you guys that want to waste your time with leaf blowers and home made wind tunnels I have some advice for you.

The next time the wind is blowing really hard, go outside, face the wind and take a pi$$, you will learn more and get a good lesson on building a model wind tunnel.

Rex

Rex, No thanks, I think I'll use a garden hose. Get less on me that way.  

[mike mendoza]

cockpit low pressure  360   ?

[hotrod]

You do not need an open window to make them work  wink

Geo

John Rains has ducts in the body specifically to pressurize the roof flap boxes if the car gets sideways.

Larry

[Stan Back]

What I was trying to state was that they need a pressure differential to work.  How much, I don't know.  And I still think the Nascar racers have an open left window.  We leave the windows (side curtains) off our roadster.  Haven't put the top up for years -- maybe a flap is in order.

Stan