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1969 Dodge Daytona Wind Tunnel Model

1969 Dodge Charger Daytona driven by 1970 Nascar Champion Bobby Issac.
This is a vision of what a 1971 Dodge Charger Daytona driven by 1970 Nascar Champion Bobby Issac might have looked like if Nascar had not banned the winged cars for 1971.

In the early part of 1969 Ford took its new 1969 Ford Talladega to the Nascar Superspeedway at Daytona and kicked the new Dodge Charger 500 aero car into the back of the pack. The 1969 Dodge Charger 500 was to be the Chrysler Corporation’s car that was suppose to dominate at the superspeedways. After the Daytona 500 embarrassment Chrysler management basically said to its race division build a car that will win; cost is no issue.

1969 Dodge Charger Daytona driven by 1970 Nascar Champion Bobby Issac.
1969 Dodge Charger Daytona driven by 1970 Nascar Champion Bobby Issac.

That set the stage for the development of the 1969 Dodge Charger Daytona which was the continued evolution of the Charger 500. However, wins were needed in 1969 so the development time was extremely short. It was now clear that horsepower alone was not the answer, the race cars had to be more aerodynamic. There was no time to build and test full size cars and there were no wind tunnels available that were big enough to test a full size car in. The answer was to build and test scale models in the wind tunnel.

Street version of the 1969 Dodge Charger Daytona.
Street version of the 1969 Dodge Charger Daytona.

Aerodynamic tests of car bodies had been done since at least the days of the Chrysler air flow. Chrysler had built similar scale models of the 1966 and 1967 Charger, Coronet and Belvidere. The also had tested the 1968 and 1969 Coronet and went on to test the 1970 Road Runner Superbird and the 1971 Road Runner and Charger.

Street version of the 1969 Dodge Charger Daytona.
Street version of the 1969 Dodge Charger Daytona.

Shown here is the 1969 model of the Dodge Charger Daytona. This is the only muscle car era wind tunnel car to survive. It was donated to the Winged Warriors National B-Body Owners Association by Chrysler in the early 1980s. It is currently being restored to include all of the various front ends, wings and other details under the direction of Joey Machado.

1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model.
1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model.

Construction of this scale model car began by reducing to 3/8 scale the actual engineered paper line drawings of the 1969 Charger body. From these prints, a molded body was made. This was most likely done from clay over a wood buck. From this reverse mold was made. A fiberglass body was then made in the mold. This fiberglass model weighs approximately 250 pounds.

1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model.
1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model.

The exhaust extensions were made to test the possible aerodynamic benefits of very long pipes. If  you could look carefully at the underside of the chassis you would see a molded in single exhaust system including a muffler. You would also notice “K Member” and rear springs details. This chassis could possibly have been also used on many different wind tunnel B-Bodies.

1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model.
1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model.

The wind tunnel model car has three types of side windows. The first is the original molded in fiberglass, second are “tin” plates and the third are wire screens. The tin plates were likely used to support the modeling clay shown in the photos. Aerodynamic tests were done using different side window likely due to the various racetrack requirements and NASCAR rule changes.

1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model. You can see inside the interior of the model. There area actually more locations for test strips on the inside to check airflow.
1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model. You can see inside the interior of the model. There area actually more locations for test strips on the inside to check airflow.
1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model.
1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model.

When the wind tunnel model was placed in the wind tunnel the wheels were bolted two plates. These plates were part of an apparatus that suspended the car in mid air. Wind was then blown at the 3/8 scale model at speeds up to 300 miles per hour. To determine what effect the wind had on the car, colored smoke was blown at it and carefully watched as it passed over and around the test model. Small thin wool “tails” were also taped to the body. During testing if they were pressed tightly against the body all along their length the air flow was stable in that area if not the air “was dirty” and not efficient.

1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model. This is a close up of the correct grill.
1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model. This is a close up of the correct grill.

The iconic Charger Daytona wing uprights on this model have a different than those found on the production cars. However, the horizontal portion of the wing is an exact miniature of the full size piece. Again look closely at the photos and notice the many holes in the wing uprights which allowed for many different wing position tests.

1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model. The wing uprights are not correct. These are plates for different versions of the uprights to be mounted on.
1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model. The wing uprights are not correct. These are plates for different versions of the uprights to be mounted on.

Restoration of this Wind Tunnel Daytona model will eventually include a shark fin single upright that was in the center of the deck lid during some testing. The original wings were unfortunately discarded many years ago.

1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model.
1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model.

Chrysler aerodynamic engineer Gary Romberg used this model in 1969 and 1970 to test ideas for improving the Charger race body.  If the wind tunnel tests were positive full-size parts were handmade then fitted to a rather crude full size real test mule race car. If these race parts worked well they were then produced by machine and tested on the number 88 race car under the supervision of Chief Mechanic Larry Knowlton. Finally, if all went well the parts were produced in small quantities and distributed to the Chrysler race teams.

1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model. Note the 1970 extended nose version.
1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model. Note the 1970 extended nose version.

At a recent interview in 2015 at the Aero Car Reunion, Mr. Romberg was asked what part of the final 1969 Dodge Charger Daytona was due to aesthetics from the design department and how much was due to engineering and aerodynamics. His reply was that it was all aerodynamic design with no input due to aesthetics. Even up to today, the 1969 Dodge Daytona remains one of the most aerodynamic designs ever to come out of Detroit.

1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model.
1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model.

It is interesting to note that the entire front end of the 1969 Dodge Charger Daytona incorporates the front fenders and hood from the 1970 Charger. Although officially a 1969 model and built on a 1969 Charger RT body the 1969 Dodge Charger Daytona was released at about the same time as the 1970 model Chargers. In fact some advertising from the time lists the Charger Daytona as a 1970 model. However, to be eligible for the 1969 Nascar season the Daytona had to be a 1969 Model and it was!

1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model.
1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model.

The Wind Tunnel Daytona incorporates the correct 1970 charger front section. Unfortunately, it was made slightly too large so modeling clay was used to make a smooth transition to the remainder of the body lines. This car has a removable front section in between the wheels and grill so different front design sections could be tested. These included the standard 1969 Charger, the Charger 500, long and short Charger Daytona clay noses, and fiberglass versions. It is planned that all versions will eventually be recreated as part of the restoration.

1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model. 1970 version of the nose removed from the model.
1969 Dodge Charger Daytona 3/8 scale wind tunnel test car model. 1970 version of the nose removed from the model.
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Richard

I grew up and lived in Iowa for nearly 40 years before moving to Southern California and now live in Tennessee. I have been into cars since I was old enough to remember. I don't have a brand loyalty although I do prefer American Muscle especially the 1969/1970 NASCAR Aero Cars. (Check our our www.TalladegaSpoilerRegistry.com page) As long as it has four wheels on it I get excited. Few men are lucky enough to be able to share their passion for cars with the woman they love. Fortunately, my wife Katriana is also a gear head and many of our activities revolve around the cars. We have a small collection that includes at least one car from each of the Big Three. Katrina prefers all original cars while I like to modify them so we have a few of each. When we aren't playing with cars we are out with our miniature donkeys. You can see more about that part of our lives at http://www.LegendaryFarms.com.

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One Comment

  1. I have heard that at least some of the wind tunnel testing was performed at the University of Maryland. Can this be confirmed?

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