3G TL (2004-2008)
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2004 Acura TL 5 speed manual?

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Old 05-22-2014, 07:11 PM
  #41  
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Originally Posted by paperboy42190
My car is at approx 2k rpm at 69mph, I can guarantee that. This is true for pretty much every other TL I've seen. Automatic of course. If you're talking about 6mt then I have no idea
Automatic transmissions have a fluid coupled torque converter so the motor revs higher than the mainshaft of the transmission. Weather or not it provides torque multiplication like gears do is another matter. Perhaps I-Hate-Cars can elaborate.

BTW: We are obviously talking about 6MT's because this is a thread about shift knobs.
Old 05-22-2014, 10:44 PM
  #42  
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Originally Posted by 94eg!
Automatic transmissions have a fluid coupled torque converter so the motor revs higher than the mainshaft of the transmission. Weather or not it provides torque multiplication like gears do is another matter. Perhaps I-Hate-Cars can elaborate.

BTW: We are obviously talking about 6MT's because this is a thread about shift knobs.
There's a lot of misconceptions around torque converters and torque multiplication. Most of the time there's slip without any sort of torque multiplication. That's why our fluid runs around 200F and we have one or more coolers to remove some of the heat. And that's why they use clutches to lock it up and raise efficiency to 100% like a manual.

What actually happens is it acts like a multiplier, kind of like a gear reduction but only when taking off from a dead stop and only up to a few mph. Once the transmission input shaft begins moving the torque advantage goes away very quickly. It gives torque multiplication right out if the hole for that "hit" and then it's over.
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Old 05-22-2014, 10:48 PM
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Originally Posted by 94eg!
BTW: We are obviously talking about 6MT's because this is a thread about shift knobs.
Old 05-23-2014, 09:37 AM
  #44  
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Originally Posted by I hate cars
There's a lot of misconceptions around torque converters and torque multiplication. Most of the time there's slip without any sort of torque multiplication. That's why our fluid runs around 200F and we have one or more coolers to remove some of the heat. And that's why they use clutches to lock it up and raise efficiency to 100% like a manual.

What actually happens is it acts like a multiplier, kind of like a gear reduction but only when taking off from a dead stop and only up to a few mph. Once the transmission input shaft begins moving the torque advantage goes away very quickly. It gives torque multiplication right out if the hole for that "hit" and then it's over.
Nice! I'll have to file that one in the back of my brain somewhere.
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