Re: BSFC

[Dave Dahlgren <ddahlgren@snet.net>]

fuel pressure is specified as the rail pressure with key on engine off. This
implies that the fuel pump is running but there are no adjustments to the rail
pressure due to manifold pressure I.E.. boost or vacuum.
Yes PSIG is used as well.
Dave

Bryan Savage wrote:
> 
> Dave,
> 
> Thank you for the information in your reply.
> 
> I am unclear about one think. When pressure is specified, does it always
> refer fuel rail pressure?
> What terminology should I use to differentiate between rail pressure and
> the pressure delta
> across the injector?  Is pressure always in PSIG?
> 
> Thanks for your help Dave,
> Bryan
> 
> *****