11 replies to this topic

[D1RT]

What is the advantage of this design? It looks like it would add more flow restriction with all the 90 degree bends? Is that what they're after?  What ever it is Lucas Wolfe won with it at the Grove last night.

 

[dirtstudent2]

They also run a stack tube car.

Edited by dirtstudent2, 20 June 2015 - 08:40 AM.

[The Legend]

Looks to
Me like the just switched sides with regular headers.

[bomber315]

It would add more air under the wing and create more downforce. Looks to me like it would be ignorantly loud and potentially dangerous!

[michael myers]

Bomber air under the wing creates lift not downforce. The air hitting the top surface creates the downforce which is why they raise the angle of attack in the back of the wing. The higher the rear of the wing creates more downforce.

[Tommy]

Bomber air under the wing creates lift not downforce. The air hitting the top surface creates the downforce which is why they raise the angle of attack in the back of the wing. The higher the rear of the wing creates more downforce.

Do you think they raise the back of the wing to let the air flow under the wing faster than over the wing to create downforce

[woodhog]

Lucas only ran those headers in hot laps. Had conventional headers on for feature.

[jo73]

I believe he runs Don Ott motors. Ya think some minds games where going on ?

[fast_crew]

The increased angle actually increases the drag, which in turn pushes the top of the car rearward...equivalent to tieing a rope with an anchor attached to the top of cage...the bottom of the wing actually is were downforce is created, by creating a low pressure area or vacuum under the wing...but after a certain angle, downforce decreases as angle increases...to the point where the wing will stall and only create an increase in drag with added angle...

[3799]

He did not win with those headers. Williams Grove told him to take them off after hot laps. He had conventional headers on the car for racing.

[bomber315]

Bomber air under the wing creates lift not downforce. The air hitting the top surface creates the downforce which is why they raise the angle of attack in the back of the wing. The higher the rear of the wing creates more downforce.

 

you say "they" meaning you havent had your hands on one

 

The increased angle actually increases the drag, which in turn pushes the top of the car rearward...equivalent to tieing a rope with an anchor attached to the top of cage...the bottom of the wing actually is were downforce is created, by creating a low pressure area or vacuum under the wing...but after a certain angle, downforce decreases as angle increases...to the point where the wing will stall and only create an increase in drag with added angle...

 

ding ding ding! of course there is always a lot more to it that makes it a really complicated/ guess work

 

think upside down airplane wing, if you understand how they work then you will understand how a sprint car wing is supposed to work

Edited by bomber315, 22 June 2015 - 12:10 PM.

[KPotter]

 

you say "they" meaning you havent had your hands on one

 

 

ding ding ding! of course there is always a lot more to it that makes it a really complicated/ guess work

 

think upside down airplane wing, if you understand how they work then you will understand how a sprint car wing is supposed to work

As an example of just how strong that low pressure area is, Just after 9-11 I was at an All Star race at Lawrenceburg.  Several cars had small flags attached to their push bars.  At speed, the flags were flying towards the cars, now stretched out behind them.  Very cool to see. 

Edited by KPotter, 22 June 2015 - 04:36 PM.