GM injector GM 5235279*RPD

rr RRauscher at nni.com
Mon Jul 30 21:12:58 GMT 2001


Most likely because the hacs were not yet available. Folks  actually
set up flow benches to test the flow rates. Being that GM specs the TBI
regulator pressure at 9 to 13 psi, testing at 9 psi would yield different
results then testing at 13 psi. Other problems abound also. I found
evaporation to be quite a problem when flow testing.

BobR.


WEG1192 at aol.com wrote:

> In a message dated 7/30/2001 1:55:19 PM Eastern Daylight Time, sravet at arm.com
> writes:
>
> << According to the TBI injector page:
>
>  Green/White      5.0L        40 lb/hr    GM 5235279 *RPD
>
>  http://diy-efi.org/gmecm/component_info/tbi_injectors.html
>
>  --steve >>
>
> I have come across a discrepancy with that page. I took the BPC numbers from
> stock bins knowing the displacement and injector colors and back calculated
> the flow rates for the 4.3L, 5.0L, and 5.7L injectors using Tunercats
> formula. My calculations show 45, 50, and 61 #/hr respectively. Anyone have
> any comments why they are different from the table at GMECM? JW
> ----------------------------------------------------------------------------

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