torque converters???
05-03-2005, 11:01 PM
#11
1st Gear Member
Join Date: Jul 2004
Location: Newport News, VA
Posts: 85
RE: torque converters???
ORIGINAL: ohsoquik02
AOD stock says lock up. they recomend you get a non lock up converter when upgrading. i run a non lockup. lockup is good for boosted applications
AOD stock says lock up. they recomend you get a non lock up converter when upgrading. i run a non lockup. lockup is good for boosted applications
05-04-2005, 08:22 PM
#13
1st Gear Member
Join Date: Jul 2004
Location: Newport News, VA
Posts: 85
RE: torque converters???
Ok, hate to bring up a topic that has dropped off the front page. Did some digging around at work for more info on AOD converters. Maybe this belongs in it's own topic and if the mods think this is a copyright infringement please remove it and drop me a "bad boy!" PM about it.
This article was clipped from a transmission industry magazine called GEARS and was written by ATRA staff writers. But since so many of us drive Fox bodied 'stangs I felt I should post this info. So, here is the article.
This article was clipped from a transmission industry magazine called GEARS and was written by ATRA staff writers. But since so many of us drive Fox bodied 'stangs I felt I should post this info. So, here is the article.
It is a common misbelief that the FORD AOD uses a lock-up torque converter. We have received many requests for information on how to delay lock-up. Comments like: "It locks-up too early; lock-up and third gear are on top of each other; the customer is complaining that the car lugs; and can I disable the lock-up, without the unit burning up?"
The truth of the matter is that the direct clutch drum is mechanically driven by the damper assembly in the torque converter. Do not confuse the damper assembly with a converter clutch. It does not have an apply or release function. The easiest way to explain what a damper assembly is, is to compare it with a clutch in a standard transmission. Imagine that you take a plain old clutch disk and remove all of the friction material. Now take what's left-over and weld it to the inside of the torque converter. There you have it. When the converter turns with the engine, so does the damper assembly. Since the direct clutch is splined to the damper assembly, the direct drum is always turning when the engine is running. When the direct clutch is applied (third and fourth gear) the transmission is driven mechanically. You can not separate the two functions.
Driveablitiy concerns of lugging, chugging and no power are either engine related or the transmission is shifting into third or fourth gear too early.
The truth of the matter is that the direct clutch drum is mechanically driven by the damper assembly in the torque converter. Do not confuse the damper assembly with a converter clutch. It does not have an apply or release function. The easiest way to explain what a damper assembly is, is to compare it with a clutch in a standard transmission. Imagine that you take a plain old clutch disk and remove all of the friction material. Now take what's left-over and weld it to the inside of the torque converter. There you have it. When the converter turns with the engine, so does the damper assembly. Since the direct clutch is splined to the damper assembly, the direct drum is always turning when the engine is running. When the direct clutch is applied (third and fourth gear) the transmission is driven mechanically. You can not separate the two functions.
Driveablitiy concerns of lugging, chugging and no power are either engine related or the transmission is shifting into third or fourth gear too early.
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