Injectors

tom sparks sparks at probe.net
Tue Mar 26 07:55:25 GMT 1996


Hey Cliff:

Here's something off of the O2 sensor page. Let me know if it helps.  
BTW, What kind of injector are you using now?
Best regards,
Thomas Sparks

>
>>From KEN_MOSHER at gmgate.IMD.Sterling.COM Tue Apr 20 15:21:53 1993


                          SUBJECT:  Injectors
I ran across the following information about injectors and thought it may be of
general interest:

Manufacturer        Part #        Flow @ 45 psi
================================================
Lucas              5208006         15.8 lbs/hr
Lucas              5207011         23.9 lbs/hr
Bosch (Stock GN)   0-280-150-218   29.8 lbs/hr
Bosch (Supercoupe) 0-280-150-756   32.0 lbs/hr
Bosch (Porsche)    0-280-150-213   33.0 lbs/hr
Bosch              0-280-150-911   33.0 lbs/hr
Lucas              5207009         33.2 lbs/hr
Lucas              5207008         40.1 lbs/hr
Bosch              0-280-150-803   40.0 lbs/hr
Lucas              5107010         52.0 lbs/hr
AC Rochester       MSD 2014        72.0 lbs/hr
Bendix (red)       GM25500139      82.0 lbs/hr
AC Rochester       MSD 2015        96.0 lbs/hr
Bendix (white)     GM (alcohol)   180.0 lbs/hr

This data was gathered from ATR's literature enclosed in their 7th injector
kit.  Also, they note that the rated flow is NOT at rail pressure.  The value
at 45 psi is the differential pressure across the injector.  In other words, if
the fuel pressure is 65 psi @ WOT and the boost is set at 20 psi, the
differential pressure is 45 psi.



At 08:47 AM 3/25/96 EST, you wrote:
>Does anyone have any flow rate information on various injectors (by part #,
>make/model/engine application)  it doesn't appear to be the kind of thing
>available at the local auto parts store.
>
>The EFI Briggs & Stratton LIVES!  I fired it up on EFI last night under manual
>control of the pulse width, and ran it for about 10 minutes.  The MC68HC11 and
>signal conditioning circuits are funtioning properly.  I'm a happy guy. 
>
>It does appear that another injector might be more appropriate, as the one 
>installed now is far too big flowwise.  As it is, I'm only running about 10 PSI
>and the pulse widths are down in the 3-6 ms range.  The strange thing about the
>injector is that the nozzle is plastic with a large (approximately .080" 
>diameter) straight orifice, and squirts a collinear stream, not a spray...
>
>I've considered reworking the orifice to reduce flow/generate a conical spray.
>
>Anyone have any suggestions?
>
>
>Cliff Ducharme







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