722.6 w210 stall speed
722.6 w210 stall speed
So now holding power. If you make a lot of torque you can overpower a converter. It will become a heat pump with terrible efficiency. This is typically called blowing through the converter. Again nothing to do with the lock up clutch.
And as an example for this. I have a gasoline C230 or E320 converter on a 700lbft w/tq om606. It has been stalled up a bit so that would make it looser we had a stock one in it originally. It held just fine as does the current one.
No lock up. There is a difference on the lock up in the Mercedes converters and I would expect others. But this is mostly for dampening. If you lock up a converter at low rpm on a diesel where it has significant mass and vibration then it will break the converter dampening. They have the same parts as a manual transmission clutch to dampen vibrations. But this problem can be avoided by controlled slip regulation if you trans is capable and the tcu is capable and or locking up at higher rpms where the vibrations are not present.
There is a ton more to say on this but that is the jist.
whipplem104
11-06-2018, 10:43 AM #32So I have not read all of this. But I am going to say that most of this is nonsense. Take the lock up clutch out of the equation. A converter has a stall speed based on tq and load etc. What type of engine is in front of it is not relevant. Diesels make low end tq and big diesels have a narrow RPM range so you need large tq converters that are fairly tight to hold them in their operating RPM range. But you can totally use a converter from a gas engine in a diesel. It will work. If the stall is good and the slip rate is fine then that is really all there is. With any engine being used here they have more of a gasoline rpm range. A 606 has close to the same rpm operating range as any older chevy v8.
So now holding power. If you make a lot of torque you can overpower a converter. It will become a heat pump with terrible efficiency. This is typically called blowing through the converter. Again nothing to do with the lock up clutch.
And as an example for this. I have a gasoline C230 or E320 converter on a 700lbft w/tq om606. It has been stalled up a bit so that would make it looser we had a stock one in it originally. It held just fine as does the current one.
No lock up. There is a difference on the lock up in the Mercedes converters and I would expect others. But this is mostly for dampening. If you lock up a converter at low rpm on a diesel where it has significant mass and vibration then it will break the converter dampening. They have the same parts as a manual transmission clutch to dampen vibrations. But this problem can be avoided by controlled slip regulation if you trans is capable and the tcu is capable and or locking up at higher rpms where the vibrations are not present.
There is a ton more to say on this but that is the jist.
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