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Old 05-16-2019, 07:23 AM   #16
3pedals
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Default Re: Dump valve for powerglide

Thanks for clarifying that
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Old 05-16-2019, 10:03 AM   #17
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Default Re: Dump valve for powerglide

Thx. I still gotta get my head around it though.
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Old 07-01-2019, 01:54 PM   #18
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Default Re: Dump valve for powerglide

Tighter converter in, and now refining my staging and starting line method. I have the mentioned solenoid above. What size hoses are appropriate? It looks like we dump back to the pan. Do I T into one of the trans cooler lines? Which one?
Or, anyone have a picture or diagram?
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Old 07-01-2019, 01:56 PM   #19
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Default Re: Dump valve for powerglide

Well crap I found instructions on Summit right after I posted.
https://static.summitracing.com/glob.../fti-f4065.pdf
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Old 07-01-2019, 03:33 PM   #20
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Default Re: Dump valve for powerglide

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Well crap I found instructions on Summit right after I posted.
https://static.summitracing.com/glob.../fti-f4065.pdf
Why is the T on the line IN ?

Is that right ?
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Old 07-01-2019, 05:14 PM   #21
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Default Re: Dump valve for powerglide

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Originally Posted by boostedbowtie View Post
Why is the T on the line IN ?

Is that right ?
That way the fluide is going through the cooler before it's dumped. Instead of dumping hot fluide to the pan. Imo it probably doesn't get cooled much as fast as it most likely moving.
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Old 07-02-2019, 08:26 PM   #22
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Default Re: Dump valve for powerglide

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Originally Posted by Third Gen Racer View Post
That way the fluide is going through the cooler before it's dumped. Instead of dumping hot fluide to the pan. Imo it probably doesn't get cooled much as fast as it most likely moving.
In general, heat transfer increases with increased fluid velocity. That's true on both sides of the heat exchanger, air and liquid in this case.
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Old 07-02-2019, 08:32 PM   #23
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Default Re: Dump valve for powerglide

Could a person bleed at the servo cover instead? Just drill and tap?
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Old 07-03-2019, 12:53 PM   #24
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Default Re: Dump valve for powerglide

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Could a person bleed at the servo cover instead? Just drill and tap?
Lol no.

You would be bleeding off main line pressure
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Old 07-03-2019, 01:13 PM   #25
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Default Re: Dump valve for powerglide

X2^^^ the servo pressure behind the cover is want is holding the band for 1st gear when on the trans brake. It would also effect the reverse servo/apply piston and probably just smoke the band and reverse clutch pack. I'm looking forward to the new Bruno-Lenco setup in the new car. It has a true converter dump that is supposed to act very similar to a clutch pedal from what I have seen. You can also manipulate the converter charge pressure to have almost 100% lockup along with what the new Pro Torque Evolution converter is capable of doing. Every setup has its faults and the powerglide has very few especially considering when and what power level it was originally designed for. The Bruno-Lenco is awesome but its huge compared to a glide. This is the first car I've had that could actually fit one since its double frame rail.
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Old 07-03-2019, 06:48 PM   #26
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Default Re: Dump valve for powerglide

don't forget fluid dumping across a pressure relief creates its own heat. I have plumed warm up circuit on large hydraulic systems this way.
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Old 07-03-2019, 09:12 PM   #27
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Default Re: Dump valve for powerglide

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Could a person bleed at the servo cover instead? Just drill and tap?
Powerglides have the pressure regulator in the valve body , so converter charge starts there. There was a patent design years ago where a solenoid was incorporated on bottom of valve body that dumped converter charge at the start. I think it was called variable stall. Anyways if you wanted to or needed to make a change why not start at the source? Solenoids have to be able to withstand high temps and compatible with the fluids your using. So seals need to be high temp.
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Old 07-03-2019, 09:47 PM   #28
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Default Re: Dump valve for powerglide

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There was a patent design years ago where a solenoid was incorporated on bottom of valve body that dumped converter charge at the start. I think it was called variable stall.
Freddy Brown Variable Stall Control (VSC). I'm still using it with great results
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Old 07-09-2019, 11:20 AM   #29
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Default Re: Dump valve for powerglide

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Originally Posted by buda_racing View Post
Freddy Brown Variable Stall Control (VSC). I'm still using it with great results
Did you just get the valve body from them or you had to send them the whole trans?
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Old 07-09-2019, 12:34 PM   #30
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Default Re: Dump valve for powerglide

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Originally Posted by 93alexcoupe View Post
Did you just get the valve body from them or you had to send them the whole trans?
Complete valve body.
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