0 280 150 215 flow rate

[Steve Lamb]

>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