6 things you didn’t know about Chrysler’s turbine car
29 June 2023
Prestone Rose/Hagerty Drivers Foundation
When Stephen Stills wrote “For What It’s Worth” in 1966, he was referring to a protest gone wrong, but the chorus could easily have been used by Chrysler’s experimental turbine-powered car program from 1964. A car with a jet engine? That sounds absurd.
Chrysler did build a small batch of turbine-powered cars, though, and a few became part of everyday life for a handful of lucky consumers. Even in a time when technology was advancing regularly, Chrysler’s turbine car pushed forward the automotive industry and the United States.
In June of 2022, the Hagerty Drivers Foundation (HDF) inducted the Chrysler Turbine into the federally recognized National Historic Vehicle Register. A year later, HDF has created a thorough documentary including interviews with experts on the turbine-car project, including engineers who were there from the start and collectors who have spent years chasing the few remaining Turbines.
We pulled out a few of the highlights from the documentary, which goes live today. If you like what you read here, the full video is embedded at the bottom of the article. Grab a cold drink, sink into a good chair, and give it a watch.
Everything started with Project A-86
1944. The Chrysler Corporation ran the Warren tank arsenal, which built M-4 Shermans, near Detroit. Photo12/Universal Images Group
Just as WWII was ending, Chrysler finally finished a turboprop engine design codenamed A-86. Though jet engines made similar power to piston-powered ones, jet engines were far smaller and lighter, meaning that planes could be scaled up, perhaps even push right to the sonic barrier. When the need for aviation advancement became less urgent, Chrysler killed the project. Could we put the turbine engine in a car? the engineers wondered.
Jet engines are incredibly space-efficient for a plane, but the turboprop didn’t immediately work in a car. The issues to solve were the same as you’d encounter when packaging any other powertrain: How to cool the engine, where to store the fuel, and which transmission to use.
It is not a jet car
A turbine-powered plane is pushed through the atmosphere by the force of the air exiting the turbine, or thrust. That wasn’t going to work well in vehicle traffic.
To make turbine power work on the streets, engineers added a second-stage turbine. Driven by the air coming out of the initial turbine, this second-stage unit also held a 10:1 gear reduction, which reduced the first turbine’s engine speed (40,000–50,000 rpm) to something a rear axle could accommodate. This second-stage turbine is the reason why the Chrysler is a turbine car, not a jet car.
Hagerty Drivers Foundation
To make the Chrysler Turbine behave like users expected cars to behave, throttle response and fuel supply also had to be radically altered. What engineers did not have to deal with, though, was vibration. A turbine engine’s internal parts only rotate; they do not reciprocate.
It can run on just about anything combustible
June 16, 1966. The Enthusiast Network via Getty
Unlike a piston engine, a turbine engine does not compress its fuel, so it can run on substances that would auto-ignite under compression or have trouble burning quickly enough for a short power stroke. Jerry Gross, one of the engineers from the Chrysler program, took one of the Turbine cars out to a peanut festival and fed it peanut oil. He said the car smelled like a restaurant kitchen but ran fine. Another story goes that, while in France, someone once ran the car on Chanel N°5. We would hate to see that bill …
Chrysler wasn’t the first to try turbine power
1950. New Rover gas turbine car tested at Silverstone. Mirrorpix via Getty Images
As early as 1949, Rover also had the idea to stuff a turbine powerplant under the hood of a car, so the post-war race to leave the piston behind became a match between the U.S. and England. Chrysler did not represent the U.S. alone: All the big auto manufacturers of the 1960s were experimenting with some type of turbine propulsion. It was Chrysler who went all-in, though, and created something more than a one-off show car. That investment made Chrysler’s efforts all the more memorable.
Casey Maxon/Hagerty Drivers Foundation
Real people got to drive them
September, 1963, France. Gamma-Rapho via Getty Images
After the flurry of public relations stunts, in which Chrysler showed a few turbine cars around the country, the company took it up a notch by putting turbine cars in the garages of consumers. Not engineers. Not marketing people. Real-world users who lived with the car day in and day out for weeks at a time.
Engineers and designers can do a lot of testing, but those specialists think and drive differently than the average user does. Does the car have an adequate cooling system? Does it have the proper throttle response? How happily will it idle in traffic? All of these questions would normally be answered over months of testing, but Chrysler decided not to wait. In total, 203 lucky drivers got their own turbine car—Chrysler built 50—for three months. The cars were out in the wild, and everyone knew because of a then-subtle color choice.
Not just bronze, Turbine Bronze
Preston Rose/Hagerty Drivers Foundation
Preston Rose/Hagerty Drivers Foundation
Chrysler didn’t really need the turbine cars to stand out visually, since the wild exhaust sound made it pretty obvious, but a little extra flair never hurt anybody.
The light-bronze color choice was safe enough to could blend into ’60s traffic but unusual enough that the car would catch the public’s eye. The whole 50-car Turbine fleet wore this color. (Chrysler brought back Turbine Bronze in 2013 for a one-off 300C homage, but it wasn’t nearly the same.) The paint, the interior details, and the streamlined, jet-influenced silhouette all combined to be a subtle yet dashing car that is now forever documented as a critical piece of our automotive history.
Article courtesy of Hagerty