Drag Racing

1. Peanut say:

   a powerglide transmission shifts smoother….2 speeds is better because you get higher rpm’s that way….and it shifts at a certain rpm not a speed
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2. SVOMAN say:

   You have to understand, they are only used with very high horsepower engines. Where a small engine needs gears to multiply the torque, a large engine doesn’t need any gears. they use the torque converter to do most of the work and absorb the extra power, so they really don’t need all those gears and you only have to shift once. They are simple and tough.

   Did you know a top fuel dragster is a single speed and they use a multiplate clutch to adsorb the extra power. hope this helps
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3. McLaren say:

   There are numerous reasons why drag racers use Powerglides. One of the main reasons is that there is only one shift, therefore the car is usually more consistent with the ‘glide. They have less parasitic horsepower loss than almost any other auto tranny. The design is very simple and seasoned racers can rebuild a tranny in under an hour. They are reliable due to the fact that there is simply less parts to break in a Powerglide. Most racers use solenoid activated shifters, they set the shift rpm based on the peak rpm of the motor, gearing, tire size, etc. MPH does not matter.
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4. ridingorracing say:

   besides only one shift, they are lighter…. and can
   be beefed up to handle the big horsepower…
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