dual GM TBIs

[Bruce Plecan]

-----Original Message-----
From: Scot Sealander <Sealand at clarityconnect.com>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Saturday, October 17, 1998 8:39 PM
Subject: Re: dual GM TBIs


>andy quaas wrote:
>> 
>> What are the CFM ratings for a 4.3, 5.7, and 7.4 liter TBI?  What
>> about the injector flow rates?
>
>Here is some data supplied in one of the articles from TC.  I think
>(from my notes) it is May '93 Car Craft, pg 104.
>
>
>Throttle body dia      Engine size     Inj cap
>
>      ?                    2.8L        36#/hr    
>
>   1 13/16"                4.3L        43#/hr
>
>   1 13/16"                5.0L        55#/hr
>
>   1 13/16"                5.7L        61#/hr   Pre '91

On the 87-91 350 gm pu's they have been also refered to as 55's
and are org/blk coded.
>
>   1 13/16"                5.7L        68#/hr   '91 up

Can vary if Yel/Brn then 68, I've heard called 65's 
>
>   2"                      7.4L        75#/hr

There are early and lates, actually even a 3rd version, but has
different connectors, the normal ones are 90 early, 80 late..

Cheers
Bruce
>
>
>Scot Sealander    Sealand at clarityconnect.com
>
>