Fuel injector Constant

[Bruce Wilcox (EUS)]

Thanks Matt,

My main point was that the injector Flow rate at whatever standard fuel
pressure did not match the equivalent value stored in the EPROM.

Best Regards,

Bruce Wilcox

> -----Original Message-----
> From:	Matt S Bower [SMTP:m.s.bower at cummins.com]
> Sent:	Thursday, September 09, 1999 8:33 AM
> To:	gmecm at efi332.eng.ohio-state.edu
> Subject:	Re: Fuel injector Constant
> 
> >Did you take into effect that the two systems are supposed to have
> >different fuel pressure regulators.  Don't remember the number off the
> >top of my head but seems like the fuel pressure for one of the two
> >systems was higher than the rated flow benching which could account for
> >one.  It seems from memory that the other was the other way but I could
> >be wrong.
> 
> >Just a thought anyway.
> 
> >matt
> 
> "Bruce Wilcox (EUS)" wrote:
> > 
> > Hi Guys,
> > 
> > I looked at the fuel injector constants for various displacement 1987
> TPI
> > engines(1227165 ECU). The results are very interesting.
> > 
> > To my knowledge, the 87 350 injector should be 22 Lbs/Hr and the 87 305
> > injector should be 19 Lbs/Hr. Could someone verify these numbers???
> > 
> > The 350 injector constant stored in the EPROM translated to 23.09 Lbs/Hr
> and
> > the 305 injector constant translates to 20.86 Lbs/Hr. Does anyone have
> an
> > idea why the discrepancy exists??
> > 
> > Thanks and Best Regards,
> > 
> > Bruce Wilcox