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Post Info TOPIC: Bypassing computer for over drive


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Bypassing computer for over drive
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92 sierra 3 sp with over drive. New engine, removed computer, transmission has electronic over drive. How do I bypass the computer so over drive works? Or is it even possible?



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DOURO, ONT

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google is your friend.
200 or 700R4 I m assuming
basically it is 12v , with a momentary switch or toggle to ground - i forget which
the actual OD is mechanical - what you are hooking up is the convertor lockup - and - it is a pain to remember to lock and unlock - so prepare for the eventual burned up tranny


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LONDON, ONT

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There are a couple of different ways to lock the converter on a 700R4. Go here to find the information you need purplesagetradingpost.com/sumner/techinfo/700R4p1.html. Sumner is a great guy and his website was really helpful back in 1998 when I put the 700R4 into my 57 Chev

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Here are a few drawings I have saved for when I hook up my 700r4

 

700r4-lockup-wiring-vacuum-switch-6.jpg

 

tcc_diagram.jpg

 

 



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Thanks guys

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CAMPBELLVILLE, ONT

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quick search, lots of answers online........so they MUST be all true!!

www.summitracing.com/parts/bmm-70244/overview/



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Chris



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chriscris wrote:

quick search, lots of answers online........so they MUST be all true!!

www.summitracing.com/parts/bmm-70244/overview/


 To add to this..

 

IF you are buying a B&M kit, they have two.

One that works with mechanical speedo and one that works with electronic speedo.



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Thanks for the info.
I think I will go this way. youtu.be/DN40gxJeHlE

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MARKHAM, ONT

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You still need to run it thru your brake pedal.
An adjustable vacuum switch can be used for when you stomp on the loud pedal to break the power connection.

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