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Sooooo... What was the purpose of fender scoops...? ***VOTE in added Poll***

Started by xs29j8Bullitt, October 05, 2011, 07:00:03 PM

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Based on the evidence so far, the fender scoops are for:

Tire clearance only, just like the Chrysler guys said!
Tire clearance initially, with un-intended Aero improvements.
Tire clearance AND Aero improvements by design from the start.
Aero improvements by design, possibly some minor tire clearance improvement with NASCAR mods.
Aero improvements only, fender stiffener edge and hood stiffener are tire clearance limiters.
It allows the HOT temperatures to escape, generated from the tires that moving at VERY high speeds. 150-200 mph

xs29j8Bullitt

This is a long running issue with me, but let's see where everyone's at on this subject...

:argue: :soapbox: :poke: :spank: :nutkick: :pullinghair:  :brickwall:  :shruggy:  :icon_smile_big:  :lol:  :popcrn:
After 8 years of downsizing, whats left...
1968 Charger R/T, Automatic, 426 Hemi
1968 Polara 4Dr Sdn, Automatic, 440 Magnum
1968 Polara 4Dr HT, Automatic, 383
1969 Charger 500, 4 Speed, 440 Magnum
1969 Daytona, Automatic, 440 Magnum
1969 Road Runner, 4 Speed, 426 Hemi
1970 `Cuda, Automatic, 440-6BBL
1970 Challenger T/A, Automatic, 340 6 Pack
2004 Ram, Automatic, 5.7L Hemi
2009 Challenger SRT8, Automatic, 6.1L Hemi
<This Space Reserved for a 2016 Challenger SRT Hellcat, 8Sp Automatic,

Mr.Woolery

I think they're there to reduce lift due to higher pressures under/inside the wheel wells, and thus increase front traction.

If they were ducted to the engine bay, I'd say they're there to reduce engine bay air pressures and allow for more airflow through the radiator.
-1971 Charger R/T clone restomod project

For details on my cars, check out my web blog


ACUDANUT

It allows the HOT temperatures to escape, generated from the tires that moving at VERY high speeds. 150-200 mph
That's a fact...Jack.  :cheers:

dreamcatcher

They were open to the wheel well to help cool the brakes.  :Twocents:
1970 Superbird Tribute 440 auto
1968 Charger 426 6 pack auto
1971 Chevelle SS Tribute 350 4 speed
1970 Mustang 351 C 4 speed
1969 GTO 400 Ram air III 4 speed
1972 Charger (soon 5.7 hemi auto)
1973 Charger 440 auto (U code)
If you've never been scared (even a little) then you've never gone as fast as you could have!

Davtona

Quote from: Mr.Woolery on October 05, 2011, 07:05:45 PM
I think they're there to reduce lift due to higher pressures under/inside the wheel wells, and thus increase front traction.

:iagree:

hemi68charger

My understanding is tire clearance, simple................
Troy
'69 Charger Daytona 440 auto 4.10 Dana ( now 426 HEMI )
'70 Superbird 426 Hemi auto: Lindsley Bonneville Salt Flat world record holder (220.2mph)
Houston Mopar Club Connection

hitail

I believe the document for this can be found on the aerowarriors site but as stated it was to reduce drag by 3%.

Hitail  :2thumbs:

FJ5WING

Did the race cars have the screen in the fenders under the scoops? I thought it was for additional tire clearence when the cars bottomed out in the corners due to the additional downforce?  :-\
wingless now, but still around.

hemi68charger

Quote from: FJ5WING on October 05, 2011, 08:25:20 PM
Did the race cars have the screen in the fenders under the scoops? I thought it was for additional tire clearence when the cars bottomed out in the corners due to the additional downforce?  :-\


As far as I know, no... The race cars didn't have the screen.. The screen was a street-production modification. Now, I'm not the one who pontificates the gospel.   :icon_smile_big:
Troy
'69 Charger Daytona 440 auto 4.10 Dana ( now 426 HEMI )
'70 Superbird 426 Hemi auto: Lindsley Bonneville Salt Flat world record holder (220.2mph)
Houston Mopar Club Connection

hitail

Reduced drag! Stop and think about the idea of tire clearance.
How wide is a fender scoop compared to the width of a stock car tire.
You could not get a street width tire covered by a fender scoop let along a racing tire.

Hitail

C5X DAYTONA

Quote from: FJ5WING on October 05, 2011, 08:25:20 PM
Did the race cars have the screen in the fenders under the scoops? I thought it was for additional tire clearance when the cars bottomed out in the corners due to the additional downforce?  :-\

The right one was for tire clearance on the race cars.  The tire was hitting the top of the right front fender in testing.    The left one was just to match the right for looks.   That is the ONLY reason as per George Wallace telling me this on our drive to Talladega in 04.  Oh my the story's from him..   They would have to kill me if I relayed them..      
Caution.... Low flying aircraft.

C5X DAYTONA

Quote from: hitail on October 05, 2011, 08:31:23 PM
Reduced drag! Stop and think about the idea of tire clearance.
How wide is a fender scoop compared to the width of a stock car tire.
You could not get a street width tire covered by a fender scoop let along a racing tire.

Hitail
Take a look at a race Daytona and how the scoop was mounted to the fender and you will see how much more room it actually gave them.     
Caution.... Low flying aircraft.

hitail

For the Aerowarriors web site.

Hitail

C5X DAYTONA

Quote from: hitail on October 05, 2011, 08:37:48 PM
For the Aerowarriors web site.

Hitail
Did I miss something?    There is nothing about the scoops.  Just the bulge on the side of the fender.
Caution.... Low flying aircraft.

C5X DAYTONA

Caution.... Low flying aircraft.

hitail

Just below that line. exhausters (fender scoops) mounted over both front tires. Drag reduced 3%.

Hitail

FJ5WING

just curious as to why they are referred to as "exhausters"...why not "less draggers"?  :smilielol:
they seem to have made a big impact on the drag numbers.  :scratchchin:
wingless now, but still around.

C5X DAYTONA

Quote from: hitail on October 05, 2011, 08:44:41 PM
Just below that line. exhausters (fender scoops) mounted over both front tires. Drag reduced 3%.

Hitail
LOL,  Got it.   So they did double duty..   At least the right one..     
Caution.... Low flying aircraft.

C5X DAYTONA

Quote from: FJ5WING on October 05, 2011, 08:25:20 PM
Did the race cars have the screen in the fenders under the scoops? I thought it was for additional tire clearence when the cars bottomed out in the corners due to the additional downforce?  :-\

No screans on the race cars.   The street birds were not even cut out.
Caution.... Low flying aircraft.

FJ5WING

Quote from: C5X DAYTONA on October 05, 2011, 08:51:35 PM
Quote from: FJ5WING on October 05, 2011, 08:25:20 PM
Did the race cars have the screen in the fenders under the scoops? I thought it was for additional tire clearence when the cars bottomed out in the corners due to the additional downforce?  :-\

No screans on the race cars.   The street birds were not even cut out.

did I give the impression I was referring to Superbirds? :shruggy: I thought we were discussing Daytonas? :icon_smile_wink:
wingless now, but still around.

stripedelete

Quote from: hemi68charger on October 05, 2011, 08:23:21 PM
My understanding is tire clearance, simple................

Read an article many years ago (80's?) that said the same thing - clearance.  According to the interviewee, who worked on the project,  when they needed to cover the hole they grabbed the not yet in production 1970 scoops of the shelf.

xs29j8Bullitt

After 8 years of downsizing, whats left...
1968 Charger R/T, Automatic, 426 Hemi
1968 Polara 4Dr Sdn, Automatic, 440 Magnum
1968 Polara 4Dr HT, Automatic, 383
1969 Charger 500, 4 Speed, 440 Magnum
1969 Daytona, Automatic, 440 Magnum
1969 Road Runner, 4 Speed, 426 Hemi
1970 `Cuda, Automatic, 440-6BBL
1970 Challenger T/A, Automatic, 340 6 Pack
2004 Ram, Automatic, 5.7L Hemi
2009 Challenger SRT8, Automatic, 6.1L Hemi
<This Space Reserved for a 2016 Challenger SRT Hellcat, 8Sp Automatic,

xs29j8Bullitt

After 8 years of downsizing, whats left...
1968 Charger R/T, Automatic, 426 Hemi
1968 Polara 4Dr Sdn, Automatic, 440 Magnum
1968 Polara 4Dr HT, Automatic, 383
1969 Charger 500, 4 Speed, 440 Magnum
1969 Daytona, Automatic, 440 Magnum
1969 Road Runner, 4 Speed, 426 Hemi
1970 `Cuda, Automatic, 440-6BBL
1970 Challenger T/A, Automatic, 340 6 Pack
2004 Ram, Automatic, 5.7L Hemi
2009 Challenger SRT8, Automatic, 6.1L Hemi
<This Space Reserved for a 2016 Challenger SRT Hellcat, 8Sp Automatic,

hitail

Thanks for the past post. NOT for tire clearance.  :brickwall:

Hitail

C5X DAYTONA

Quote from: FJ5WING on October 05, 2011, 08:53:29 PM
Quote from: C5X DAYTONA on October 05, 2011, 08:51:35 PM
Quote from: FJ5WING on October 05, 2011, 08:25:20 PM
Did the race cars have the screen in the fenders under the scoops? I thought it was for additional tire clearence when the cars bottomed out in the corners due to the additional downforce?  :-\

No screans on the race cars.   The street birds were not even cut out.

did I give the impression I was referring to Superbirds? :shruggy: I thought we were discussing Daytonas? :icon_smile_wink:
The thread started out,  "What is the purpose of the scoops?"   Birds have them too.. :nana:
Caution.... Low flying aircraft.