Engine Reversal and EFI

ARTHUR OKUN arthurok at ix.netcom.com
Sat Jan 27 07:32:52 GMT 1996


You wrote: 
>
>> ~ >If the old transmission was just and overdrive tranny with a 
lockup
>> ~ >converter (e.g. 700R4, etc), the wires only control the 
converter.
>> ~ 
>> ~ Don't use a 700R4 (4L60, -E) without the lockup converter!  
>> ~ Modifications are necessary to increase cooling or the extra
>> ~ heat generated by the slippage in the converter will burn it 
>> ~ up.  I think it is ok to run some of the older ones with out
>> ~ lockup - 350-C, etc.
>> ~ 
>> ~ 
>> When I posted, I assumed that the swap was not using the 700R4.
>> You are right - run this tranny without converter lockup in 
overdrive
>> will toast it in short order.
>
>Hmm. I know of people running 700-R4s without lockup converters, and 
they're
>doing fine. actually, one guy started out by using a lockup converter 
and fried
>2 (!) trannys. His engine puts out ~420 hp and the converter failed, 
trashing
>the tranny. On the 3rd tranny he put in a non-lockup converter and 
sofar everything
>is fine. 
>
>FWIW
>
>Markus Strobl                96 Z28 6M Black/grph. Borla, !CAGS, PEG2, 
QLC 
>Dallas, Texas                1LE driveshaft,  Honker, T-tops,  CD, 
leather
>F-member 9/93                14.09 @99.40   - When stock -  27.5mpg 
@85mph
>
any   "loose" converter  generates   alot of heat   .
does  the   that   tranny have   an overdrive switch output  if so
just  use that to drive a relay   to pull in the   converter  solonoid.



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