2 GM TBI units, one ECM

[Bruce Plecan]

-----Original Message-----
From: andy quaas <realsquash at yahoo.com>
To: diy efi <diy_efi at efi332.eng.ohio-state.edu>
Date: Monday, December 07, 1998 2:10 PM
Subject: 2 GM TBI units, one ECM


>I searched the archives and I am left with some questions.  On the
>corvette cross-fire injection, what ECM is used? 

I wouldn't think about that ecm, use a 7747.   I've been running a 
Cross fire of the 747 for years.

 How are the IAC(s)
>done? 

Just wire em in parrarel.

 What is the big difference between a 8747 and 7747?

8747 uses a MAT sensor, as I recall.

  I know the
>older big-block's came with 90 lb/hr injectors, so does the 8747 have
>larger inj. drivers?

Nope, all the TBI's that I know of use the same style P+H..
Bruce
  Thanks.
>
>Andy 
>
>
>
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