0 280 150 215 flow rate

[Scott Linder]

Steve,
As a injector reconditioning shop we have many different flow benches for
injector service.
We have always used heptane as we were told it had approx the same specific
gravity as gasoline etc.
It really doesnt matter as a standard to us is just that a standard. Most
injectors are rated in lbs of fuel per hour and our benches flow in mils .
We usualy flow at 40 psi for normal testing.
I will cross the injector # over tomorrow and  see what our specs are for this
injector and what the other applications are for this unit.

Jim Linder
the injector " guru"
www.lindertech.com

JimLinder at juno.com

Steve Lamb wrote:

> >I have Bosch injector data for 0 280 150 215 showing static flow rate of
> >214 cc/min. at 2.5bar pressure.
>
> Thanks Rich.  Am I right in assuming that because this is measured
> 'statically' then, in the "real world", I would have to expect to get
> something less (?) than this ??
>
> Out of interest, I rang the technical dept. of Bosch here in Oz and,
> although quite reluctant, they did confirm this figure (214cc/min at 2.5bar or
> 37psi).
>
> Now, the reason they were reluctant to divulge this info was (quote):
>
> "We don't like to give out these figures because they are measured using
> 'special fluids' such as N-Heptane and _not_  petrol.  The difference in
> viscosity's renders the figures meanlingless for petrol applications"
>
> In a way this seems a bit silly, but I suppose is due to the need to
> "standardise" on a certain fluid due to the variability in petrol (ie
> leaded, unleaded, etc.).
>
> Since I put the original post on diy_efi, I've obtained another list of
> flow rates from a source here in Oz (apparently associated with Haltech)
> which indicates that the flow for this injector is 250cc/min @ 280kPa
> (40psi).    Could the difference be explained by the use of petrol as
> opposed to Bosch's "special fluids" ??
>
> Anyone else able to shed some light on this ??
>
> Steve Lamb
> Department of Defence, DSTO
> Aeronautical and Maritime Research Laboratory
> 506 Lorimer Street
> Fishermans Bend  VIC 3207 Australia
>
> Tel: +61 3 9626 7525
> Fax: +61 3 9626 7089
>
> IZCC #180