Compushift mini 47RH

CPSimpson said:
Joefarmer has a stand alone he has in beta testing right now.
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I've heard that. I just want something affordable. That ats standalone set up is 2800 bucks. I could do that but I don't want to lol. I might pm him and see his progress and expected cost
 
I think he has been running the 47rh model in his personal truck for a while now.
 
Have you thought about running Pressure switches in the gov. Test port to ground the solenoids? That's what I'm going to use on my 12v/47rh swap


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cumberlandfarm1 said:
Have you thought about running Pressure switches in the gov. Test port to ground the solenoids? That's what I'm going to use on my 12v/47rh swap


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Isn't this the old Tim Barber method for having a completely functional 47RH with no switches needed?
 
Got Smoke? said:
Isn't this the old Tim Barber method for having a completely functional 47RH with no switches needed?
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It seems it works but a pain in the ass to set up I heard. If the mini works well it's defiantly worth the $$ being its throttle and speed based.
 
ComnRailPwr said:
It seems it works but a pain in the ass to set up I heard. If the mini works well it's defiantly worth the $$ being its throttle and speed based.
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I just read a little about the mini, what I am not seeing is where it is picking up throttle position and vehicle speed? Is there a potentiometer in the kit I'm not seeing? And does it utilize the factory speed sensor?


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ComnRailPwr said:
It seems it works but a pain in the ass to set up I heard. If the mini works well it's defiantly worth the $$ being its throttle and speed based.
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I am not sure how that is being a pain, it is setting two pressure switches, and wiring them. A drawback is they shift at a fixed MPH regardless of throttle position.
 
zstroken said:
I am not sure how that is being a pain, it is setting two pressure switches, and wiring them. A drawback is they shift at a fixed MPH regardless of throttle position.
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Shoulda stated setup is a pain, not installation. Another drawback is it will not downshift to hit a passing gear from what I understand. Which means smoke show.
 
I think I may be sold on the mini, throttle position is picked up through line pressure, the only thing I haven't found is where the speed sensor that comes in the kit is mounted, for the price the mini is worth the money


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cumberlandfarm1 said:
I think I may be sold on the mini, throttle position is picked up through line pressure, the only thing I haven't found is where the speed sensor that comes in the kit is mounted, for the price the mini is worth the money


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I agree.
 
So the problem runs back to what TheSilverBullet said, what do you do about the speed sensor? The one that comes with the mini is cable driven, my np241dhd has a space for a speed sensor but it is not here, it is covered, does anyone know if the DHD is cable drive or does it have an electronic speed sensor that goes in it? If I had to guess it probably had an electronic sensor, but I'm really not sure


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They are 3 wire speed sensors on the DHD.

I would ask them what the specs are on that sensor. I'd be willing to bet it can run with a Chrysler sensor in place of theirs
 
biggy238 said:
They are 3 wire speed sensors on the DHD.

I would ask them what the specs are on that sensor. I'd be willing to bet it can run with a Chrysler sensor in place of theirs
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Thanks I'll shoot them an email to see what they have to say


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Isn't line pressure tampered with (increased) on built transmissions? How does it ramp up? Linearly? Based on what inputs/parameters?
 
SmokeShow said:
Isn't line pressure tampered with (increased) on built transmissions? How does it ramp up? Linearly? Based on what inputs/parameters?
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e74c293de55f8ea2e239a6d385b11820.jpg


This should answer part of your question SmokeShow


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ComnRailPwr said:
Shoulda stated setup is a pain, not installation. Another drawback is it will not downshift to hit a passing gear from what I understand. Which means smoke show.
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You have to wire a switch in between to break the ground to do so. Also, with out an over ride switch, or a switch with adjustable hysteresis, a regular pressure switch will not let the trans down shift until the line pressure drops below the sensors range. Which really sucks coming to a stop sign and OD and LO not coming off until about 28mph. Not cool on snow and ice. :)
 
biggy238 said:
They are 3 wire speed sensors on the DHD.

I would ask them what the specs are on that sensor. I'd be willing to bet it can run with a Chrysler sensor in place of theirs
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Only on 94-97 ones with large out put shafts. 98-02 do not have them from what I remember. However, I have looked into cutting grooves in the out put shaft to retain the VSS drive gear. The tcase housing should be easy enough to cut the hole in and tap the hole for the retaining bolt. I just never got around to doing it.
 
The way I see this working, is you will need to get a mechanical speedo drive assembly from a 727 and install it where your current VSS is. (If you have one) The speed sensor converter they show in the pic must have a cable ran from the drive on the trans or tcase to this adapter, and on the other side a cable would hook up for a mechanical speedo. It looks like a very nice option for the money. I'm going to get one for my 72 Chevy and see how it works.
 
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