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Question about TQ?

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Old Mar 19, 2004 | 09:25 AM
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Launching!
 
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Default Question about TQ?

I know I am fixing to make an *** out of myself , but that's OK! COuld somebody please explain to me how a torque converter works and how it helps with ET? Never understood this part of the automobile. Thanks fellas!
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Old Mar 22, 2004 | 11:11 AM
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Launching!
 
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Hello!
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Old Mar 22, 2004 | 11:53 AM
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Torque Converters are a complex item and you will probably get a lot of opinions. Basically the Torque Converter is a fluid coupler/torque multiplier. Internally it has splined turbines that work against each other and depending on the pitch of the vanes and case depends on the stall speed. Sorry I can't help more than this, but I tried.
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Old Mar 22, 2004 | 01:36 PM
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Launching!
 
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Thanks for the input, but what I think I am really trying to ask is... Ok like a 3000 RPM stall converter for ex. does that mean the truck will not go until it reaches 3000 RPM's? Thanks!
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Old Mar 22, 2004 | 01:46 PM
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It will go, but not full power basically. It will rev a little higher untill it starts to move over stock. Its a good addition if you don't tow a whole lot.
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Old Mar 22, 2004 | 01:48 PM
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Go to www.howstuffworks.com and read about it.
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Old Mar 22, 2004 | 01:50 PM
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i love that site...
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Old Mar 22, 2004 | 03:07 PM
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Think about the stock converter. With mild throttle, the truck starts moving along at 800 rpms (probably moves at idle). With more throttle, it starts pulling harder at 1200 rpms. At full throttle from a stop, it may get to 1600 or so rpms as it pulls its hardest. With an aftermarket stall, apply the same logic. At low throttle, it moves, more throttle, it pulls harder. A 3000 stall will just stretch those events out. Mild throttle will slowly move the vehicle. Mid throttle will have more pull, but the rpms will be slightly higher than stock (say 1600 instead of 1200). Full throttle will jump to 2800 rpms or so for the full pull.

How does this make you have a better ET? Think about your power band. At 1600 rpms, where the stock stall goes at WOT, you may have 150 RWTQ. At 2800 rpms, where the aftermarket stall goes at WOT, you may have 250 RWTQ. So with the higher stall, you are skipping the weaker rpms, and jumping right to the higher power output range. Also, a torque converter has a slight multiplication effect for torque. The aftermarket unit may multiply torque by 2.2 times, where the stock unit may only multiply it by 1.8 times. So you get to a higher power level and have a more powerful multiplier with a higher stall.
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Old Mar 22, 2004 | 03:36 PM
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Launching!
 
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I'll try that website! Thanks big Tex for the info!! That's what I really needed to know! Now I don't feel quite like a dumbass! Appreciate it guys!
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