Allison 5sp: DO NOT use modified valve body with copilot

alexcampbell1

New member
Feb 15, 2009
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For everyone with Copilot issues. Do not use with a modified valve body. STOCKERS only. Shift kits do not get along with the copilot if you modify your INTERNAL VALVING.
 

Mike L.

Got Sheep?
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Aug 12, 2006
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Trans needs to be slightly modified and there will be no problems. I have seen a bunch of ATS Alli's with Transgo trim valves and drilled plate installed by them.
 

rgullett83

Active member
Oct 27, 2008
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The last alli I built already had a copilot it in it before the build after the build no problems clicked off the shifts no problem no matter on throttle input, or Copilot setting
 

x MadMAX DIESEL

<<<< No Horsepower
Dec 30, 2008
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just wondering, cant live just be used to control the convertor lock. thats all the co-pilot does right? if live can do this plus anything else you really ever need. why not just not mess wiht the co-pilot and get efi live
 

Josh2002cc

That Uncle
Apr 2, 2007
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just wondering, cant live just be used to control the convertor lock. thats all the co-pilot does right? if live can do this plus anything else you really ever need. why not just not mess wiht the co-pilot and get efi live

Because IIRC EFI Live cannot do what the co-pilot does. As to the differances someone else will have to chime in on that
 

Mike L.

Got Sheep?
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Aug 12, 2006
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The copilot unlocks the gain valves by restricting pressure in the reverse pipe. This is how ATS gets their increased pressure. Now top that off with the Transgo trim valves which is how the rest of us increase pressure, the ramp up gets too lively and can bring on a clutch too fast before the off going clutch releases.
You can eliminate drilling the seperator plate holes as per Transgo's instructions which will take a lot of the effect away from the valves and help this tie up situation.
Other things can be done internaly to help remedy this but that's another story.
 

alexcampbell1

New member
Feb 15, 2009
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The copilot unlocks the gain valves by restricting pressure in the reverse pipe. This is how ATS gets their increased pressure. Now top that off with the Transgo trim valves which is how the rest of us increase pressure, the ramp up gets too lively and can bring on a clutch too fast before the off going clutch releases.
You can eliminate drilling the seperator plate holes as per Transgo's instructions which will take a lot of the effect away from the valves and help this tie up situation.
Other things can be done internaly to help remedy this but that's another story.

^^^^^^^^^^^^^^^^^^^^^^^:hug::hug:
 

Josh2002cc

That Uncle
Apr 2, 2007
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Happy now???

Please tell me you are...

I don't feel lumping me in with this clown was needed Chris. I don't go around saying you hang out with Wade Moody do I? No, because that is mean and I am not a mean person.

But, yes I am happy...I never wasn't happy. :D
 

The Neens

BFD
Staff member
Aug 10, 2006
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Monrovia, Ca.
I don't feel lumping me in with this clown was needed Chris. I don't go around saying you hang out with Wade Moody do I? No, because that is mean and I am not a mean person.

But, yes I am happy...I never wasn't happy. :D

I apologize for the lumpage;) I should not have gone there...

As far as whom I hang with, you know the answer to that, check my avatar...

I have a feeling that aluminum rods are gonna be selling cheap in the future, wanna buy some:hug:
 

malibu795

misspeelleerr
Apr 28, 2007
8,294
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in the buckeye state
just wondering, cant live just be used to control the convertor lock. thats all the co-pilot does right? if live can do this plus anything else you really ever need. why not just not mess wiht the co-pilot and get efi live

co-pilot is a harnes sytem to the tcm what edge/banks is to the ecm...

personally i went this route...didnt bother witht eh co-pilot.

the onlythin i dont like is tc unlock ona downshift... doesnt unlock on an up shift on my truck...