DO deck lid spoilers work ??????

[gil_t2]

I looked at alot of threads on spoilers but could not find answer ( I suck at searching ). For drag cars running 11.0's and faster does a spoiler help and if so witch one is best, any of the factory or aftermarket ones like Skinny Kid racing sells. I like the no spoiler look, but i have 4 little black plugs to look at.

If they do not help, do they hurt?

 

[stkjock]

I don't think any real gains for a car running 11s, maybe 9s

 

[wazslow]

Over 150mph you will start to notice a difference. An 11 second car isnt going to see anything and a race spoiler looks rediculous on a slow car.

 

[GT E UPP]

IMO, you need to be running 9's (150+) for rear spoiler to be beneficial

 

[Marc s]

According to the wind tunnel results that Ford did when they developed the FR500S. You need either a spoiler that extends well beyond the back of the deck lid or one that extends over the decklid at least 8". Without a wing, our chassis has considerable lift that starts at 150 MPH. I have noticed that my car has a tendancy to start spinning the tires once I hit 160 MPH but is fine at speeds less than that. For most drag cars, A wing is not important.

 

[dark steed]

According to the Shelby site, when testing for the KR, they discovered that the '05-'09 v6 spoiler provided more high speed downforce than any other factory spoiler. That will fill the holes and be functional to some degree.


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[Black_GT]

According to the Shelby site, when testing for the KR, they discovered that the '05-'09 v6 spoiler provided more high speed downforce than any other factory spoiler. That will fill the holes and be functional to some degree.


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Damn...who woulda thought.

 

[dark steed]

Yeah, kinda blew my mind, too!

http://www.shelbystore.com/product-p/8r33-6341602.htm

"These rear deck lid spoilers are factory remaining stock from the 2008-2009 Shelby GT500KR program. The pieces also appeared on 2005-2009 V6 Mustangs. During high speed aerodynamic testing, these spoilers were found to deliver the most down force."

 

[gil_t2]

Thank you all for your input.

 

[cwhit23]

According to the wind tunnel results that Ford did when they developed the FR500S. You need either a spoiler that extends well beyond the back of the deck lid or one that extends over the decklid at least 8". Without a wing, our chassis has considerable lift that starts at 150 MPH. I have noticed that my car has a tendancy to start spinning the tires once I hit 160 MPH but is fine at speeds less than that. For most drag cars, A wing is not important.

Damn.... Double Damn.. props man. If my car started spinning at 80 I'm puckering up and letting off the throttle quick.... 160 and I'd straight up shit myself and cry.

 

[Marc s]

Wow, another BS claim by Shelby America.