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Author
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Topic: Now I'm spoiled...
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SteveLaRiviere
Administrator Posts: 33988
From: Saco, Maine
Registered: May 99
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posted 11-28-2002 02:39 PM
   
Since NPD has the rear spoiler for '69-'70 Mustangs on indefinate backorder, I picked up a repro on ebay. It's a nice unit. I wasn't going to put spoilers on my Mach at first since it didn't originally come with them, but my wife and my brother both convinced me that I had to get spoilers if I was fixing up a Mach and I always wanted a Mach with the spoilers, so what the hell? Now I just need to pick up the front spoiler and the louvers, and my Mach will have the full war paint. ------------------
'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150 Be sure to remember our sponsors, Mustangs Plus, NPD, and Osborn Reproductions.
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V8 Thumper
Gearhead Posts: 3529
From: Orange, Ca. United States of America
Registered: Dec 2001
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posted 11-28-2002 02:54 PM
quote:
Originally posted by SteveLaRiviere:
my Mach will have the full war paint.
 
------------------
1965 GT coupe, 333ci aluminum headed/solid cammed stroker, four speed, 3.70:1 9" All Blue Oval, no blue bottle
http://mustangsandmore.50megs.com/V8Thumper.html
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RonnieT
Gearhead Posts: 637
From: Port Allen, La. 70767
Registered: Jun 99
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posted 11-28-2002 03:06 PM
Steve, The first pictures we saw of our MACH1 the car did not have spoilers, louvers, or the MACH1 stripes. My wife did not like it without the trimmings, so before we went to pick it up we had KAR install the stripes, both spoilers, and the louvers. When she saw it afterwards there was no way we were not getting the car. ------------------
Ronnie
69 mach1 351W-4V engineless at the time!
70 Torino GT 351C-4v with a "shaker"
Mustangs and More Member #23
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jsracingbbf
Gearhead Posts: 1853
From: Batesville,MS. , U.S.A.
Registered: Mar 2002
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posted 11-28-2002 03:18 PM
Considering the rear spoiler/wing, do they really provide any measure of downforce? I want something on the back of my drag car, but I think those Aluminum fabricated ones look awful and take away from the looks of a car. They're fine for craparos but not on a Mustang. Steve, I always thought the spoiler was the little rise at the back of the car and the wing was the bolt on piece. ------------------
Jerry Smith
69 Mustang Pro ET Drag
70 Mustang retired former footbrake car
"Long ago when men cursed and beat the ground with sticks, it was
called witchcraft.....Today, it's called golf."
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SteveLaRiviere
Administrator Posts: 33988
From: Saco, Maine
Registered: May 99
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posted 11-28-2002 03:35 PM
True, the correct name is 'wing' for what I bought and all literature calls the upturned feature on the deck lid and quarter extensions as the 'spoiler.' Didn't mean to confuse you.  I'm with you, I can't stand the looks of the fabricated spoilers they use on race cars and ricers. ------------------
'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150 Be sure to remember our sponsors, Mustangs Plus, NPD, and Osborn Reproductions.
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66bluefb
Gearhead Posts: 456
From: Okla.City,Okla.
Registered: May 2002
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posted 11-28-2002 09:49 PM
Cool Steve, The 70 Mach 1`s are my favorite car. The look real good with all the trimmings on them. Tony------------------
http://ourworld.cs.com/blagintony/myhomepage/auto.html
86-302 HO bored .030 over crank .010 under
B-303 cam ,harland sharp roller rockers
performer rpm intake, 625 carter
66-289 heads, ported with 160-194 valves, 3 angle valve job
4 speed toploader
pony seats
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BlueMule
Gearhead Posts: 946
From: Kent Island, MD USA
Registered: Sep 2002
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posted 11-28-2002 10:05 PM
Call it what you want, the 69/70 Mach1 needs it. Louvers you can take or leave IMHO. Remember that crap on the back of the chebby powered Chaparal in the 60s? (the only answer they could come up with to the GT40) That's a wing. Air dams were in the front for stability. Wings were for down-force in the rear. Spoilers were for busting up the vacuum behind the the ultra aero GTs of the era like Ferraris, Porsches and the most awesome GT40s and Cobra Daytonas. Cobra Daytona? please don't get me drooling... ------------------
-Paul 70 Mach1
79 Ranchero GT
97 Expedition XLT
00 SVT f150 Lightning 4149 of 4966 Born on: 06/26/2000 'life's tough... it's tougher if you're stupid.'
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1trickpony
Gearhead Posts: 107
From: Escondido, Ca
Registered: Oct 2001
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posted 11-28-2002 10:13 PM
Steve, good choice to go with the spoilers and louvers. Personally, I think 69-70 sportsroof models look naked without them. of course adding that shaker on there is the cherry on top!  ------------------
1969 "S" code Mach1
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cobravenom71
Gearhead Posts: 779
From: Kissimee, Fl USA
Registered: Aug 2002
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posted 11-29-2002 02:59 PM
Basically, any aero add-ons are generically called spoilers because they 'spoil' the air in that area. A front spoiler is used to bring the nose down,which restricts the flow of air underneath the rough unaerodynamic chassis of the car.A front air dam is just a more efficient front spoiler that directs a portion of the air around the sides of the car.All this air-blockage helps to produce a low-pressure zone underneath the car that will in turn let the high pressure air above it push it down closer to the road. Less pressure underneath=less aerodynamic drag=more speed for equal power. At speed, The extreme rear of the car has a drastic drop-off in high pressure down-force near the trailing edge of the trunk, which causes the rear of the car to lift, or become light. A rear spoiler( either a wing or fixed lip)serves to 'spoil' the air-flow at the trailing edge leading to a compressed 'bunching-up' of high-pressure air molecules that push down on the rear of the vehicle.
In fact, the concept of the original GT-40's aero design was based on the research of Dr. Wunibald Kamm, a leading aerodynamicist. Dr. Kamm's studies showed that a vehicle with a relatively short trunk area(From roof to trailing edge),that was also 'tall' and had a slightly concave rear-facing panel was the most efficient design for producing rear-end downforce coupled with a 'pusher' effect. The turbulent, high pressure air at the rear of the car created by the shape of the vehicle actually 'pushed' the vehicle considerably, increasing efficiency. The 71 sportsroof was designed to exactly mimic this look. This design was popularly known as a 'Kamm-back', and if you look at almost all cars on the road today, they all have thier basis in that design. The front and rear spoilers on classic mustangs have been shown to produce very noticeable effects at as little as 60 MPH. But thats not because the spoilers are so effective. Actually, the basic aero-design of the cars were so ineffective that any help was noticed. Of course, the cars were not designed in a wind tunnel, as only Chrysler had an in-house wind tunnel in those days. Until Ford and GM built thier own wind tunnels, they rented wind tunnel time from outside sources-very expensive! Legend has it that Ford and GM actually used Chryslers wind tunnel a few times! Whew! ------------------
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MidLifCrisis
Gearhead Posts: 282
From: USA
Registered: Oct 2001
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posted 12-01-2002 05:13 PM
cobravenom71
I believe that the GT-40 was the first race car Ford designed using a wind tunnel or computer. Before that they used trial and error, gut instinct, and if you have seen vintage COBRA photos, yarn taped to the sides of the car. The short lengths of yarn would lay flat or whip around to show the air flow over he car.
Of course Peter Brock used learned aerodynamic principals in the design of the Cobra Daytona Coupe which included the Kamm back. His original designs also included a hoop winged spoiler that followed the curved contours of the rear. The lip spoiler was actually used in place of this. I believe it was fabricated and riveted in place during competition at the request of a driver because of poor rear end handling. twas then included in production of the rest of the coupes.
Also, the University of Maryland has been known to rent their wind tunnel facility to NASCAR teams, including Richard Petty at one time.
Charlie
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cobravenom71
Gearhead Posts: 779
From: Kissimee, Fl USA
Registered: Aug 2002
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posted 12-01-2002 06:00 PM
Charlie, I agree with you on all counts. Chrysler was a leader in the aero-race in the late sixties. The famous Birds and Bees(Superbirds and Charger Daytonas) were direct results of good aero at any cost. The famous 'scat-pack' snorkel hood scoops were also a direct result of trying to get the opening of the scoop above the 'laminar', stagnant air, and up into the dense, turbulent air flow.
The NACA-style scoops on the 71-73 Machs are also aerodynamically superior to just about all other configurations. It actually IS ram-air, not just called it.------------------
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radrider
Journeyman Posts: 14
From: Farina IL. USA
Registered: Feb 2002
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posted 12-03-2002 12:02 AM
Good call on putting on all the spoilers and the louvers for the car. When I got my car it was minus the louvers and that was a must have for my car. Watch out after you put the louvers on the car will shrink. After putting mine on we stepped back and it really looked like the car had shrunk. Makes for a nicer look.
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