Was the Dynaflow a good transmission?
The Dynaflow was an inherently inefficient design due to its sole reliance on the torque converter in normal driving. Exacerbating the situation was the dual stator arrangement, which wasted more power than the simpler three element converters used with other automatic transmissions, such as Chrysler’s TorqueFlite.
How does Buick Dynaflow work?
A unique feature of this Dynaflow torque converter is that all the power transferred is through the gear set and first turbine at low speeds and gradually and smoothly diminishes as the power transferred through the second turbine increases until it does all the work at higher speeds.
How much does a Dynaflow transmission weigh?
The transmission contains a 5-element torque converter — an engine-driven pump member, three turbines, and the stator — combined with two planetary gearsets. The total transmission weighs about 200 lb, a result of the extensive use of aluminum.
How long was a Dynaflow transmission?
24 inches long
Making It The main components of the Dynaflow were the torque converter, a multiple-disc direct-drive clutch and a planetary gear-train unit. In total, the transmission had 354 different parts, was 24 inches long and weighed 217 pounds.
What is a Turboglide transmission?
The Turboglide is a Chevrolet constant torque, continuously variable automatic transmission first offered as an option on Chevrolet V8 passenger cars for 1957. It consisted of a concurrently-geared (as opposed to sequentially-geared) planetary gearbox with a ‘switch pitch’ dual-pitch torque converter stator.
Is the Hydra-Matic transmission good?
Hydra-Matic was a complex design that was expensive to produce. Despite some early problems, it was reliable and so rugged it was widely used in drag racing during the 1960s. It was not as smooth as some competitor’s transmissions (notably Buick’s Dynaflow), but was more efficient, especially at highway speeds.
What is a Slim Jim transmission?
GM’s Roto-Hydramatic 375 “Slim-Jim” This transmission, used in 1961–64 Oldsmobiles and Pontiacs, was a dead-end technology very loosely based on some of the technology employed, starting in 1956, to improve the original Hydra-matic.
What is a Powerglide transmission good for?
A Powerglide transmission is very durable in stock form — start adding some aftermarket parts and you have one stout unit. This elevated level of durability is another reason a Powerglide is perfect for bracket racing, as they can take a beating for an extended amount of runs.
What is a 2 speed Powerglide?
The Powerglide is a two-speed automatic transmission designed by General Motors. It was available primarily on Chevrolet from January 1950 through 1973, although some Pontiac models also used this automatic transmission after the fire at the Hydra-Matic factory in 1953.
How do I identify a Hydra-Matic transmission?
The Turbo Hydra-Matic 700R4 can be identified by an oil pan number six shown at General Motors Transmission Pans. The tailshaft housing is held onto the main case by four bolts (the bolt spacing is similar to the THM350), and uses a square-cut o-ring seal, and not a gasket.
What is hydramatic transmission?
Hydramatic (also known as Hydra-Matic) is an automatic transmission developed by both General Motors’ Cadillac and Oldsmobile divisions. Introduced in 1939 for the 1940 model year vehicles, the Hydramatic was the first mass-produced fully-automatic transmission developed for passenger automobile use.
How much HP can a Powerglide handle?
3,500 horsepower
With all the available upgrades, both the Powerglide and the TH400 are capable of withstanding an incredible 3,500 horsepower.
Who builds the best Powerglide?
ATI Powerglide – Superglide 4® Drag Racing Transmission. ATI’s new Superglide 4 is the strongest Powerglide in the industry, exclusively from ATI!
What makes a Powerglide so good?
How do you tell the difference between a Turbo 350 and a Turbo 400 transmission?
Another quick way to identify a Turbo 400 is to look at the kick-down mechanism. Unlike the Turbo 350, instead of a “kick down” cable, it uses an electrical slide switch, which is controlled by the throttle linkage. Generally, in ’68-’71 vehicles, the switch is located on the carburetor.
What is the difference between 4L60E and 4L70E?
4L70E Transmission Stats The E in its designation indicates that it uses electronic controls over a throttle valve cable, and it sets itself apart from the previous 4L60E by providing a sturdier build, including both five-pinion planetaries over the 4L60E’s four-pinion planetaries, and an improved output shaft.