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What does Brake Boosting a 5AT turbo physically do the transmission?

Old Jun 28, 2007 | 06:03 AM
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Default What does Brake Boosting a 5AT turbo physically do the transmission?

Just wondering what physically occurs inside the transmission/rear end when you hold the break down on an automatic and get the rpm's up to like 3000 so the boost comes in at about 4 psi when you launch. How detremental is this to the AT? is it something thats ok to do every once in a while at the drag strip to put down a good time?
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Old Jun 28, 2007 | 06:48 AM
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oops.... i meant what does it physically do TO the tranny haha
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Old Jun 28, 2007 | 06:54 AM
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The first thing it will do is heat up the transmission oil by spinning the torque converter and heat is a big factor in component failure.
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Old Jun 28, 2007 | 06:55 AM
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Dont do it for extended periods, save it for the track
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Old Jun 28, 2007 | 09:59 AM
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yeah I planned on just trying it a couple of runs next time I go to the drag strip so I can see what 1/4 time the car is actually capable of
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Old Jun 28, 2007 | 10:36 AM
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Just get an upgraded torque converter and tranny cooler and you'll be good to go.
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Old Jun 28, 2007 | 02:17 PM
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I've heard that the TQ converter can negatively impact the driveability of the car under normal driving conditions. Is this true? and to what extent?
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