info needed on stall's....
10-16-2007, 05:31 AM
#1
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info needed on stall's.... I'm new to auto tranny's and i see alot of people with stall converters and different comments about them. But how does a stall work and how bad does it affect drivability just to say that i wanted like a 1800 stall. thanks for your help guys.
10-16-2007, 08:56 AM
#2
Well, the rpm at which a torque converter stall is called the "stall speed". But... if you were to try to hold the car with the foot brake and acclerate, you would get one number. If you simply launched hard from an idle you would get a nother number... this is called flashing the converter. And if you were to have a transmission brake applied and took it to max stall you would get yet another indicated stall speed.
What you are looking for is a converter stall that best suits your camshafts power curve. Meaning that if the camshaft begins to make power at say 2400 rpm, that is where you would want the converter to stall... say 2300 to 2600 rpm. If you are utilizing a power adder then you would want to have a converter that was "tighter", meaning it does not have a high stall compared to the same engine combo without a power adder.
That should be considered basic, basic information. Do some research yourself starting at different converter company websites.
A stall speed of 1800 rpm is not going to give you any noticeable gains whatsoever. If yours is a bone stock powertrain I would suggest a converter that stalled somewhere between 2400 and 3200 rpm. That will provide a good "bang for the buck" and noticeable performance gains as well.
Hope that helps.
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What you are looking for is a converter stall that best suits your camshafts power curve. Meaning that if the camshaft begins to make power at say 2400 rpm, that is where you would want the converter to stall... say 2300 to 2600 rpm. If you are utilizing a power adder then you would want to have a converter that was "tighter", meaning it does not have a high stall compared to the same engine combo without a power adder.
That should be considered basic, basic information. Do some research yourself starting at different converter company websites.
A stall speed of 1800 rpm is not going to give you any noticeable gains whatsoever. If yours is a bone stock powertrain I would suggest a converter that stalled somewhere between 2400 and 3200 rpm. That will provide a good "bang for the buck" and noticeable performance gains as well.
Hope that helps.
g
10-16-2007, 12:03 PM
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do you guys lock up single plate stalls in 3rd gear? im currently only locking in 4th as ive heard its very rough on the tranyn and stall to lock a single plate
10-16-2007, 12:09 PM
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https://ls1tech.com/forums/automatic-transmission/728728-commonly-asked-stall-transmission-related-questions.html
read the sticky's dude... this type stuff has been asked a bajillion times... or just use search...
read the sticky's dude... this type stuff has been asked a bajillion times... or just use search...
10-16-2007, 04:38 PM
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10-16-2007, 09:30 PM
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There should not be a problem locking up a single plate disc in 3rd gear if it is done properly. Meaning, anything above say 20% throttle and it gets unlocked... or is inhibited. No reason for it to not have 3rd gear lock up for cruising in town! Obviously hard throttle or WOT is not recommended.
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