Holy converter slip batman

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PRH said:
Must be that blower is giving things down stream of the crank a bit of a workout.

Maybe some of that observed 20% “converter slip” is the high gear clutch pack slipping a bit.
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And/or...it’s the wrong converter for the combo. Most converter slip is controlled through the design of the converter for a specific application.
 
pittsburghracer said:
I went from using Dextron 3 in my powerglide to type F because of the smell. Some of that Dextron was smelling burnt right out of the bottle.
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Been using Type F for years in my 727A, after a rebuild in the upper 70's. Also recommended by the rebuilder. I still use Dextron in my 2005 48R only because it has not been rebuilt or had a converter change out. I don't want to mix the two.
 
Do you data log? I was surprised how far off my observations were to the logged data. Maybe its not as far off as it seems.
 
Mine slips at 3.5 to 4% at 6500-6700 rpm according to the data. My combo isn’t really conducive to this high slip approach. I don’t have reserve rpm capacity of say a Hemi/BB Chevy. You can have one built to use a higher slip % to multiply torque where you need it. If you can’t use all the torque down low. Say the combo is tire limited. You control the power down low by other means to limit the flash rpm and let it multiply like crazy up top. It needs to be built with that idea in mind, the engine needs to be happy with the higher rpm level and heat it generates. People much smarter than me have been doing it for awhile. Converters make my head hurt!:)
 
gregsdart said:
Do you data log? I was surprised how far off my observations were to the logged data. Maybe its not as far off as it seems.
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No. I don't have anything capable.

But I can say that my shift light (6500) was lit at the end of the track last night. New calculation was 22% slip.
So converter and trans refresh are in the future now.
 
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