WELD/SUTTON DIRT MISSILE build

[Ron Sutton]

Originally Posted by FETorino

Ron

What about the Aero tell us what you have planned.

Starting in the front:
A. Sealed front nose with airflow ducted through radiator/heat exchanger & brake ducts

B. 4" Front splitter x 75" wide (supported from bumper panel)

C. Splitter to wheel opening bump flare, blending from splitter into 1/3 wickers on wheel openings.

D. Deep inner fender lip on back side of all fenders
* To reduce airflow into wheel wells

E. May, or may not, add side air extractor in fenders
* I need to package everything first

F. Smooth Hood / Max Surface area
* Inner bracing to maximize downforce
* Rounded nose (Ford style in hood removed)

G. Low angle, smooth top cowl hood scoop
* Ignore the silhouette drawing in the blueprint
* Hood will be smooth with 4" cowl scoop

H. Flush mount Lexan windshield

I. Smooth body (No door handles, emblems, etc

J. Ground Effects
* Rockers do NOT roll under
* Rockers are "boxed" to be flat on the sides
* This reduces airflow "roll under"
* 1.5" Wide Side Splitters full length of rockers
* Practically eliminates airflow under the rockers
* Creates small amount of downforce

K. Flush mount Lexan side windows with radiused B-Pillars to reduce airflow into cockpit
* NACA Duct in one side window for driver cooling
* Provides air for the FAST Cool Suit & Cool Air Helmet Blower

L. Full, smooth, belly pan from splitter to rear of car
* All removable with flat head Dzus fasteners
* 2 NACA ducts with hose to cool rear brakes
* Can run without certain panels for better cooling & ease of use
* Then run full panels when racing or running for optimum lap time

M. Functional, gentle roll diffuser with 4.5" strakes

N. Flush mount Lexan rear window

O. Rear "Kick Up" on Mustang tail light panel removed & straightened for cleaner airflow.
* Ignore the silhouette drawing in the blueprint
* No rear spoiler
* Top of rear deck is level / kick up removed

P. Dual Element Rear Wing
* Aggressive wing design = High Down Force / Medium Drag
* 13" Primary Wing
* 5.5" Secondary Wing
* 76" Wide
* 22 Angle settings with bolt hole change
* Changeable Wickers for tuning
* Rear Mount to Chassis
* Support Mount to Body

I may put some vortex generators on the trailing edge of the roof just to mess with people. Just kiddin'. The rear profile of this car is bitchin' & doesn't need VGs.

[DBasher]

Originally Posted by Ron Sutton

Starting in the front:
A. Sealed front nose with airflow ducted through radiator/heat exchanger & brake ducts----Typical radiator opening or all clean air from down low?

B. 4" Front splitter x 75" wide (supported from bumper panel)

C. Splitter to wheel opening bump flare, blending from splitter into 1/3 wickers on wheel openings.

D. Deep inner fender lip on back side of all fenders
* To reduce airflow into wheel wells

E. May, or may not, add side air extractor in fenders
* I need to package everything first----I'd love to see this happen

F. Smooth Hood / Max Surface area----Rob, I told you so
* Inner bracing to maximize downforce
* Rounded nose (Ford style in hood removed)

G. Low angle, smooth top cowl hood scoop
* Ignore the silhouette drawing in the blueprint
* Hood will be smooth with 4" cowl scoop

H. Flush mount Lexan windshield

I. Smooth body (No door handles, emblems, etc----How's a guy supposed to get in?

J. Ground Effects
* Rockers do NOT roll under
* Rockers are "boxed" to be flat on the sides
* This reduces airflow "roll under"
* 1.5" Wide Side Splitters full length of rockers----Any reason some splitters are curved and wider at the front and rear?
* Practically eliminates airflow under the rockers
* Creates small amount of downforce

K. Flush mount Lexan side windows with radiused B-Pillars to reduce airflow into cockpit
* NACA Duct in one side window for driver cooling
* Provides air for the FAST Cool Suit & Cool Air Helmet Blower

L. Full, smooth, belly pan from splitter to rear of car
* All removable with flat head Dzus fasteners
* 2 NACA ducts with hose to cool rear brakes----Curious to see where these get placed.
* Can run without certain panels for better cooling & ease of use
* Then run full panels when racing or running for optimum lap time

M. Functional, gentle roll diffuser with 4.5" strakes

N. Flush mount Lexan rear window

O. Rear "Kick Up" on Mustang tail light panel removed & straightened for cleaner airflow.
* Ignore the silhouette drawing in the blueprint
* No rear spoiler
* Top of rear deck is level / kick up removed

P. Dual Element Rear Wing
* Aggressive wing design = High Down Force / Medium Drag
* 13" Primary Wing
* 5.5" Secondary Wing
* 76" Wide
* 22 Angle settings with bolt hole change
* Changeable Wickers for tuning
* Rear Mount to Chassis
* Support Mount to Body

I may put some vortex generators on the trailing edge of the roof just to mess with people. Just kiddin'. The rear profile of this car is bitchin' & doesn't need VGs.

Looking forward to your aero thread coming to life.

[1965_SS]

So bad ass!!!!!!
Following along..................

[booah]

My favourite page so far, having just built a front splitter and chin piece on my 70 Mach 1 for a 1/2 mile race here in Aus.

Watching with much interest.

[Ummgawa]

Following this one. Very cool.

[Ron Sutton]

Originally Posted by DBasher

I. Smooth body (No door handles, emblems, etc----How's a guy supposed to get in?

J. Ground Effects
* Rockers do NOT roll under
* Rockers are "boxed" to be flat on the sides
* This reduces airflow "roll under"
* 1.5" Wide Side Splitters full length of rockers----Any reason some splitters are curved and wider at the front and rear?
* Practically eliminates airflow under the rockers
* Creates small amount of downforce

L. Full, smooth, belly pan from splitter to rear of car
* All removable with flat head Dzus fasteners
* 2 NACA ducts with hose to cool rear brakes----Curious to see where these get placed.
* Can run without certain panels for better cooling & ease of use
* Then run full panels when racing or running for optimum lap time

Hey Dan!

Answers:
I: There are no side windows. The door handle on the inside of the door ... the handle the driver uses to get out ... is easily accessible by reaching in the open window area.

J: I'm not clear what you're asking. Please restate the question.

L: The NACA Ducts will go in the belly pan, in front of the rear brake calipers (which are on the front side of the housing).

[DBasher]

Ignoring the height at the front and rear of the splitter, notice how the width of the “board” changes? This is the only picture I have on my phone but I’ve seen quite a few that are set up wider at the ends and narrower in the middle.

I have a lot interest on the aero...if you plan on explaining the how’s and why’s as you go I can probably keep to myself....probably.

[Ron Sutton]

Originally Posted by DBasher

Ignoring the height at the front and rear of the splitter, notice how the width of the “board” changes? This is the only picture I have on my phone but I’ve seen quite a few that are set up wider at the ends and narrower in the middle.

I have a lot interest on the aero...if you plan on explaining the how’s and why’s as you go I can probably keep to myself....probably.

Gotcha.

There is more turbulence at the wheel wells ... both front & rear. So the designer "probably" made them wider there to deal with that.

Or they may have made the middle narrower, simply for ease of driver & passenger egress. Hard to say for sure their reasoning.

[Ron Sutton]

Car Year & Model: 70 Ford Mustang Fastback
Competing in: NASA TTU & Track Days
Front Clip/Suspension: GT Track-Warrior
Rear Clip/Suspension: GT Track-Warrior
Engine: Track-Warrior 3 LS7 700 HP
Trans: Sequential Shift T56 6-Speed
Brakes: StopTech 14” ST60/ST40
Owner: Greg Weld
Builder: Randy Chastain – One Off Customs

Here are some EARLY photos of Greg Weld's 70 Mustang the front end. I say "early" because we've made changes & advancements to it since these. But you'll get to see the progression this way. I'll show the changes we made & why we made them.

Early stages of front end customization. You can see where the front end has been widened 3" on each side for a total of 6" wider. This is all to widen the track width & make room for 335/30/18 Hoosier Slicks all the way around.



The top red circle shows where the Ford style is shaped into the nose. We'll be removing that ... smoothing & rounding the nose ... and making the hood flat in front of the eventual 4" cowl hood scoop.

The red circle on the bottom is just to point out that the air dam mocked up here is NOT going to stay that shape. It will also be rounded. Gotta start somewhere.



This photo shows the rear of the body shell after it was widened 6" & re-gel coated.
Yes, those are 69-70 Shelby Tail Lights. The actual lights will be LEDs.




This is a good photo showing what the factory tail panel kick up looked like. If I left this as is, it would seriously affect airflow off the back of the car. So we leveled it out as you can see in the second photo.

[Flash68]

Ron, what's the measurement on Greg's from outside of tire to outside of tire?