What is the best transmission for drag racing?

For cars that weigh less than 3,200 pounds, launch violently, or are traction limited, the Powerglide is the best choice. In these types of applications, a Powerglide is the ultimate in consistency as well. On the other hand, for cars that will see any street time at all, a TH400 is a better option.

What kind of transmission do drag cars use?

Unlike a street or high-performance car that uses a manual or automatic transmission, a top-fuel dragster uses a centrifugal clutch and only operates in forward, high, and reverse.

Is a Powerglide a good transmission?

Automatic transmission technology has made some big strides since 1950, but the PowerGlide is yet a serviceable transmission in a street car. Smooth and reliable. Just don’t expect to be impressed by it’s performance.

Why is a Powerglide good for drag racing?

The Powerglide has just two speeds: low and high. And its durability allows it to run 100 to 150 races before needing a rebuilding that takes only two hours, Coughlin says. … Many racers use the first gear to burn the tires at the start line and start the race in second gear, Coughlin says.

Why do drag cars only have 2 gears?

6 second drag race cars more than likely do NOT use a sequential transmission. They would use a two speed Powerglide transmission. The whole idea in a drag race is to shift as quickly as possible and keep the engine revolutions in the “sweet spot” where you generate the maximum amount of power.

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How much is a Powerglide transmission?

Despite its low introductory price of US$68.65 ($511 in 2020 dollars), most buyers apparently considered the Torque-Drive a nuisance to shift, and for a hundred dollars more they could get fully automatic Powerglide, making Torque-Drive installations very rare.

Are 3.73 gears good for highway?

Rear end gears (2.79’s, 3.00’s, 3.25’s, etc) are great for freeway driving, bit not good for 0-60 MPH or accelerating from a dead stop. Shorter gears (higher numbers) are much better suited for accelerating, such as 3.55, 3.73, 3.91’s, 4.11’s etc.

Does gear ratio affect horsepower?

Here’s what the numbers mean, how they relate, and how they affect performance: Torque is a measure of the rotational force applied to the engine’s crankshaft and ultimately to the drive wheels. … A higher numeric axle ratio (4.11:1) keeps the engine running in the higher horsepower range, thus improving performance.

Which gear ratio is faster?

A lower (taller) gear ratio provides a higher top speed, and a higher (shorter) gear ratio provides faster acceleration. . Besides the gears in the transmission, there is also a gear in the rear differential.

How much horsepower can a 2 speed Powerglide handle?

A powerglide can indeed handle 440 hp, hust put a good cooler on it especially if you are putting a higher stall converter in it.

What’s better Powerglide or TH400?

In these types of applications, a Powerglide is the ultimate in consistency as well. On the other hand, for cars that will see any street time at all, a TH400 is a better option. In race cars, compared to a Powerglide a TH400 is better suited for cars with large tires and taller rearend gearing.

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How much horsepower can a stock Powerglide handle?

With all the available upgrades, both the Powerglide and the TH400 are capable of withstanding an incredible 3,500 horsepower.

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